Abstract

The present invention provides a toner for electrophotography capable of achieving high color reproducibility in a wide brightness region ranging from high to low brightness. This toner for electrophotography containing a compound represented by general formula (X-1) is characterized in that when the toner image formed exclusively from the toner is at maximum saturation, the hue angle (H) of the toner in a CIE L*a*b* color space is within the range of 341°≤H≤351°. [Formula 1] (In the formula: one of Rx1 and Rx2 is a methyl group or an ethyl group, while the other represents an alkyl group with C12 or less optionally substituted by a group including an oxygen atom, or a 5- or 6-membered aliphatic ring optionally substituted by a group including an oxygen atom connecting a nitrogen atom and Rx1 and Rx2; and GX2 represents an alkyl group optionally substituted by a group including an oxygen atom.)

IPC Classes  ?

• G03G 9/09 - Colouring agents for toner particles

Abstract

An accounting management system is provided with an accounting management device (200), and an image-forming device (500) connected via a network to the accounting management device (200). The image-forming device (500) includes execution means for executing an image-forming operation, and notifying means for sending a completion notice to the accounting management device (200) that an image-forming operation has been completed by the execution means. The accounting management device (200) includes an accounting management unit for generating, in accordance with the receipt of the completion notice, accounting information about the image-forming operation that corresponds to the completion notice.

IPC Classes  ?

• G06F 3/12 - Digital output to print unit
• B41J 29/00 - TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS - Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
• B41J 29/38 - Drives, motors, controls, or automatic cut-off devices for the entire printing mechanism
• G03G 21/00 - Arrangements not provided for by groups , e.g. cleaning, elimination of residual charge
• G03G 21/02 - Counting the number of copies; Billing
• H04N 1/00 - PICTORIAL COMMUNICATION, e.g. TELEVISION - Details thereof

Abstract

Disclosed are a developing apparatus and an image formation apparatus, which include: a first toner support (24) which uses a toner to develop an electrostatic latent image formed on an image carrier (1); a second toner support (25) which is positioned further downstream than the first toner support (24) in the movement direction of the image carrier (1), and which uses the toner to develop the electrostatic latent image formed on the image carrier (1); and a developer support (13) which supports a developer (23) including the toner and a carrier, and supplies the toner to the first toner support (24) and the second toner support (25). The ten-point average surface roughness of the first toner support (24) is set lower than the ten-point average surface roughness of the second toner support (25).

IPC Classes  ?

• G03G 15/08 - Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer

Abstract

A developer device (2) comprises two developer rollers that are positioned in opposition to an image retention body (1). A first developer bias voltage (waveform (Z)) of a square waveform, wherein an alternating current voltage is superpositioned on a direct current voltage, is impressed on one of the two developer rollers (20A). A second developer bias voltage (waveform (A)), wherein an alternating current voltage is superpositioned on a direct current voltage, is impressed on the other of the two developer rollers (20B). The waveform (A) is a waveform wherein the square waveform in the first developer bias voltage is changed such that toner that has adhered to the image retention body (1) is less prone to being dislodged by toner flying thereafter. With the developer device (2), it is possible to obtain optimal image concentration in a minimal concentration potential.

IPC Classes  ?

• G03G 15/06 - Apparatus for electrographic processes using a charge pattern for developing
• G03G 15/08 - Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer

Abstract

Disclosed is a solid-state image pickup device which does not require signal charge transfer between pixels, and by which TDI can be realized. An output control unit (5) sequentially allocates output process periods of pixel signals of each pixel row group (10) in vertical sequence every time that one horizontal process period (H) arrives, which is obtained by dividing one frame period (T) into three, wherein the one frame period (T) is a period that each pixel row (100) moves a predetermined distance in the vertical direction. An addition unit (50) is controlled by the output control unit (5) to add a pixel signal held by a signal holding unit (41_X) and pixel signals corresponding to this pixel signal and held by signal holding units (41_R to 41_B), and to output to an AD convertor (60).

IPC Classes  ?

• H04N 5/372 - Charge-coupled device [CCD] sensors; Time delay and integration [TDI] registers or shift registers specially adapted for SSIS
• H04N 5/374 - Addressed sensors, e.g. MOS or CMOS sensors

Abstract

Disclosed is a toner set for electrophotography, which has good color reproducibility from the low brightness part to the high brightness part in an intermediate color (red) region. Specifically disclosed is a toner set for electrophotography, which is configured of at least a yellow toner, a magenta toner and a third toner for electrophotography. The toner set for electrophotography is characterized in that: the brightness (L*) of the magenta toner is within the range of 35-50 and the brightness (L*) of the third toner for electrophotography is within the range of 50-65 in the CIE LAB color space system; the hue angle of the third toner for electrophotography is within the range of 0-65˚; and the hue angle difference between the color produced by the yellow toner and the color produced by the magenta toner is within the range of 114-130˚.

IPC Classes  ?

• G03G 9/09 - Colouring agents for toner particles
• C07C 49/92 - Ketonic chelates

Abstract

A toner for electrophotography characterized in that, when a monochromatic image of the toner for electrophotography is formed and the reflection absorption spectrum thereof is measured, said reflection absorption spectrum shows a maximum density within a range of 600-700 nm, and, excluding the light absorption by a substrate, the maximum density (Dm) of said reflection absorption spectrum, the density thereof at 570 nm (D(570)) and the density thereof at 530 nm (D(530)) satisfy the following requirements, and a toner set for electrophotography: 1.4≤Dm≤3.5 D(570)≥0.55 4.5≤D(570)/D(530)≤12

IPC Classes  ?

• G03G 9/09 - Colouring agents for toner particles
• G03G 9/08 - Developers with toner particles
• C09B 47/04 - Phthalocyanines
• C09B 67/20 - Preparations of organic pigments

Abstract

Disclosed is a toner for electrophotography, which has good hue, good light resistance and good electrostatic charge, and is capable of providing images that are free from white spots. The toner for electrophotography exhibits a good performance. Specifically disclosed is a toner for electrophotography, which is characterized by containing at least one metal-containing compound that is represented by general formula (1). (In the formula, R1 represents an alkyl group; R2 represents a hydrogen atom, an alkoxycarbonyl group, an aryloxycarbonyl group, a sulfamoyl group, a sulfinyl group, an alkylsulfonyl group, an arylsulfonyl group, an acyl group, a halogen atom or a cyano group; and R3 represents a group that has 9 or more carbon atoms and an aromatic hydrocarbon structure.)

IPC Classes  ?

• G03G 9/09 - Colouring agents for toner particles
• G03G 9/08 - Developers with toner particles

Abstract

A control unit (6) allows a vertical scan circuit (3) to cyclically select a given one-dimensional pixel line from among pixel lines (21 to 23) each time a predetermined H period has elapsed and controls a read circuit (5) and a horizontal scan circuit (4) so as to read pixel signals of an object exposed by the selected pixel line. The control unit (6) further controls a vertical movement unit (8) so that the scan speed S satisfies S=P/4H where P is the array pitch in the vertical direction of the pixel lines (21 to 23) and H is the H period.

IPC Classes  ?

• H04N 1/04 - Scanning arrangements
• H04N 1/028 - PICTORIAL COMMUNICATION, e.g. TELEVISION - Details thereof - Details of scanning heads for picture-information pick-up

Abstract

Provided is an intermediate transcriptional body with high durability, in which the occurrence of a scratch and the occurrence of a crack are suppressed, and which is used for an electro-photographic image forming device with no occurrence of filming. Hence, the intermediate transcriptional body used for the electro-photographic image forming device in which at least an elastic layer and a surface layer are provided on a base in this order characterized in that the elastic modulus of the elastic layer is 10 MPa to 200 MPa, and the thickness thereof is 50 µm to 500 µm.

IPC Classes  ?

• G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern

Abstract

An excellent intermediate transfer member which, even when used for printing on a plurality of sheets, does not crack to thereby cause image defects and can retain satisfactory cleanability without suffering toner filming, and with which high-quality printed images free from blurring caused by toner filming are continuously obtained. The intermediate transfer member is for use in an image-forming device having a means of first transferring a toner image deposited on the surface of an electrophotographic photoreceptor to an intermediate transfer member and then secondly transferring the toner image from the intermediate transfer member to a receiving material. The intermediate transfer member comprises a resin base, and formed on the periphery thereof, an elastic layer and a surface layer, the surface layer being composed of an interlayer and a rigid layer, the interlayer being a layer having a lower hardness and a lower modulus than the rigid layer.

IPC Classes  ?

• G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern

Abstract

When it is determined, in a television conference apparatus, that there has been given an instruction of connection destination candidate selection request, a connection destination candidate selection request command is transmitted (step S12).  Next, a process of acquiring a connection destination candidate image is executed (step S14).  Next, a connection destination candidate list is generated (step S15).  Next, a management server transmits the generated connection destination candidate list (step S15#).  The television conference apparatus receives the connection destination candidate list (step S16).  Then, the television conference apparatus displays the connection destination candidate list (step S17).

IPC Classes  ?

• H04N 7/15 - Conference systems
• H04M 3/56 - Arrangements for connecting several subscribers to a common circuit, i.e. affording conference facilities

Abstract

The image forming device is provided with first spacing members having a larger outer diameter than that of a first developing roller and that are disposed at two edges of the first developing roller equiaxially with the first developing roller, second spacing members having a larger outer diameter than that of a second developing roller and that are disposed at two edges of the second developing roller equiaxially with the second developing roller, a first retaining member, a second retaining member, a first biasing member, a second biasing member.

IPC Classes  ?

• G03G 15/08 - Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer

Abstract

Whether an SD card has been inserted or not is determined (S5). When it is determined that an SD card has been inserted, reading of data on the SD card is then executed (S6). Whether or not workspace information is contained in the data obtained by reading the data on the SD card is determined (S6#). When it is determined that workspace information is contained in the data obtained by reading the data on the SD card, workspace data are generated based on workspace control information (S7).

IPC Classes  ?

• G06F 13/00 - Interconnection of, or transfer of information or other signals between, memories, input/output devices or central processing units
• G06F 15/00 - Digital computers in general; Data processing equipment in general

Abstract

An image is formed without losing a moving image included in a structured document. An MFP receives print data and moving images from a PC, associates the moving images with second moving image identification information and stores the moving images associated therewith, embeds the second moving image identification information of the moving images stored and positional information included in the print data in still images included in the print data, and forms the still images on paper during the image formation.  Furthermore, an MFP (100) reads the still images formed on the paper during the image reading (S71), extracts the second moving image identification information and the positional information from the read still images (S73, S75), obtains the moving images identified by the second moving image identification information extracted (S74), and generates a structured document in which the moving images are associated with the still images so that the moving images are displayed in the position identified by the positional information of the still images (S89).

IPC Classes  ?

• G06F 3/12 - Digital output to print unit
• B41J 21/00 - Column, tabular or like printing arrangements; Means for centralising short lines
• H04N 1/387 - Composing, repositioning or otherwise modifying originals

Abstract

An image forming device is provided with a powder replenishing means (23) for replenishing a powder containing at least a tonner, a developing means (11) developes an electrostatic latent image by agitating and carrying a developer containing the powder replenished by the powder replenishing means (23), a toner amount detecting means (31) which is provided on the carrying route connecting the powder replenishing means (23) with the developing means (11) and detects the amount of the toner per unit volume to be replenished to the developing means (11), and a control means (6) which adjusts a correction amount of a reference replenishment amount by the powder replenishing means (23) on the basis of the amount of the toner per unit volume detected by the toner amount detecting means (31).

IPC Classes  ?

• G03G 15/08 - Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer

Abstract

Disclosed is an electrophotographic photoreceptor that causes little or no abrasion-derived uneven image density and does not cause scratches and image defects attributable to the occurrence of scratches even after a large volume, for example, exceeding 1,000,000 sheets of printing, and that does not cause image blurring even after printing in an environment of a high-temperature and a high-relative humidity (RH) respectively exceeding 30°C and 80%.  The electrophotographic photoreceptor comprises an electroconductive support and at least a photosensitive layer and a surface layer provided on the electroconductive support and is characterized in that the surface layer contains at least a compound obtained by reacting a polymerizable compound containing a methacryl group with particles containing a functional group reactive with the methacryl group and, in the polymerizable compound, the ratio between the number of methacryl groups and the molecular weight (number of methacryl groups/molecular weight) is not less than 0.0055.

IPC Classes  ?

• G03G 5/147 - Cover layers

Abstract

A main body use billing table indicating a billing condition for the use of a device and a cooperative job billing table indicating a billing condition for a cooperative job are held.  When a received job is a device job executed only by the device, the main body use billing table is read out and, based on the main body use billing table, billing is performed and the remaining amount is calculated.  When the received job is a cooperative job executed in cooperation with a service providing apparatus, the cooperative job billing table is read out and billing processing is executed, referring to the main body use billing table if necessary.

IPC Classes  ?

• B41J 29/38 - Drives, motors, controls, or automatic cut-off devices for the entire printing mechanism
• G03G 21/02 - Counting the number of copies; Billing
• G06F 3/12 - Digital output to print unit
• H04N 1/00 - PICTORIAL COMMUNICATION, e.g. TELEVISION - Details thereof
• H04N 1/34 - Circuits or arrangements for control or supervision between transmitter and receiver for coin-freed systems

Abstract

An image formation apparatus executes an instruction-awaiting print job which is executed after waiting for an execution instruction for a print job which has been received from a user and then charges for the execution of the instruction-awaiting print job.  The image formation apparatus comprises: a securing unit for, when receiving an instruction-awaiting print job, analyzing the instruction-awaiting print job, determining a charging amount based on the analysis result, and securing a budget for the determined charging amount; and an execution unit for receiving an execution instruction for the instruction-awaiting print job and, when the charging amount for the instruction-awaiting print job is secured, executing the instruction-awaiting print job, wherein the securing unit secures the budget without waiting for the execution instruction.

IPC Classes  ?

• B41J 29/38 - Drives, motors, controls, or automatic cut-off devices for the entire printing mechanism
• B41J 29/00 - TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS - Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
• G06F 3/12 - Digital output to print unit
• H04N 1/00 - PICTORIAL COMMUNICATION, e.g. TELEVISION - Details thereof
• H04N 1/34 - Circuits or arrangements for control or supervision between transmitter and receiver for coin-freed systems

Abstract

Disclosed is an electromagnetic induction method fixing apparatus with a structure that enables a reduction in warm-up time by increasing the rate of temperature rise. The electromagnetic induction method fixing apparatus has a structure whereby a fixing roller is provided on the inside of the orbital path of a cylindrical fixing belt and is pressed from the outside of the orbital path with a compression roller by means of the fixing belt, and secures an anchoring nip. When the inner diameter of the fixing belt is Db, the outer diameter of the fixing roller is Dr, and the inner diameter Db of the fixing belt divided by the outer diameter Dr of the fixing roller is a ratio X, the combination of the fixing belt and the fixing roller used is in the range 0 < X ≤ 1.18.

IPC Classes  ?

• G03G 15/20 - Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat

Abstract

Provided are a highly-productive paper sheet feeding apparatus wherein an abnormality relating to paper feeding is not generated irrespective of the size and the type of a sheet, and an image forming system having the paper sheet feeding apparatus.  A sheet feeding apparatus (LT) is provided with: a stacking section (40) having sheets (P) stacked thereon; a transfer section (50), which is positioned above the stacking section (40) with a space therebetween and transfers the sheets (P); a floating section (60) which floats the upper sheets (P) stacked on the stacking section (40) toward the transfer section (50); and an air-sucking section (70) which sucks by means of the floating section (60) the air contained between the sheets floated toward the transfer section (50).

IPC Classes  ?

• B65H 3/48 - Air blast acting on edges of, or under, articles
• B65H 3/12 - Suction bands, belts, or tables moving relatively to the pile

Abstract

Disclosed is an imaging unit wherein a developing device and a drum cartridge can be coupled easily and reliably with high precision, and can be separated by a simple operation.  An imaging unit (20) comprises a drum cartridge (21) having an image carrier (3) consisting of a photosensitive drum, and a developing device (6) having a developing roller (52) facing the image carrier (3) and forming a toner image by developing an electrostatic latent image formed on the image carrier (3), wherein the drum cartridge (21) and the developing device (6) are provided so as to be coupled or separated freely and when the drum cartridge (21) and the developing device (6) are coupled, the drum cartridge (21) and the developing device (6) rotate relatively about the axis of the developing roller (52) in the developing device (6).

IPC Classes  ?

• G03G 21/18 - Mechanical means for facilitating the maintenance of the apparatus, e.g. modular arrangements using a processing cartridge
• G03G 15/08 - Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer

Abstract

Provided is a toner cartridge which can prevent leakage of toner by sealing a gap which appears when a lid is superimposed over a housing certainly, and also provided is a method for recycling same. A toner cartridge (10) attached to an image formation apparatus and supplying toner thereto comprises a housing (11) equipped with a section (16) for containing toner, and a lid (12) covering the section (16) for containing toner of the housing (11), wherein the first adhesive (31) of sealant (15) which is provided, on the opposite sides of a substrate (32), with the adhesive (31, 33) is stuck to the outer circumferential surface at a portion (14) where the lid (12) is superimposed over the housing (11), and a release paper (34) is stuck to the second adhesive (33) thus sealing the superimposed portion (14).

IPC Classes  ?

• G03G 15/08 - Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
• B65D 83/06 - Containers or packages with special means for dispensing contents for dispensing powdered or granular material

Abstract

In a developer accommodating container (11) in which a developer is accommodated, a developer carrying member (12) for carrying the accommodated developer from one end side to a delivery area on the other end side while stirring the developer.  A helical blade (22) extending from one end side to the other end side is formed around a rotating shaft (21) of the developer carrying member (12).  Multiple paddles (24) for carrying the developer in the direction orthogonal to the shaft center are formed around the rotating shaft (21) in the delivery area.  The paddles (24) are circumferentially displaced in position from each other.

IPC Classes  ?

• G03G 15/08 - Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer

Abstract

Disclosed is an image formation apparatus wherein back side dirt of a recording medium due to toner adhering to a secondary transfer roller is prevented without upsizing the apparatus.  An image formation apparatus performs image adjustment by detecting a toner image constituting an image adjustment pattern (22) transferred to an intermediate transfer body (2), and forms a preceding pattern (21) having a length equal to or longer than the circumferential length of a secondary transfer roller (13) at a position preceding an image adjustment pattern (22) in the advancing direction of the intermediate transfer body, using toner having a highest lightness out of the toner used for the image adjustment pattern (22) or toner having a lightness higher than that of the toner used for the image adjustment pattern (22).

IPC Classes  ?

• G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern
• G03G 15/00 - Apparatus for electrographic processes using a charge pattern
• G03G 15/01 - Apparatus for electrographic processes using a charge pattern for producing multicoloured copies

Abstract

Disclosed is an image-processing system capable of storing in a user's desired folder with no restriction on the designation of a transfer-destination folder and without requiring the input of a path for specifying the transfer-destination folder. When the transfer mode is set for an image data information-processing device (2), the information-processing device is requested to acquire screen data for reproducing a screen displayed on a display device (24) of the information-processing device. In response thereto, the information-processing device transmits the screen data to an image-processing device. Based on the screen data, the image-processing device displays on a display part (152) a remote screen which reproduces the screen of the information-processing device. When a user designates a position on the remote screen, that position is specified, and position data and image data are transmitted to the information-processing device (2). The information-processing device calculates the position on the screen corresponding to the position data transmitted from the image-processing device, and stores the image data in a storage location that is determined according to the object displayed at the calculated screen position.

IPC Classes  ?

• H04N 1/00 - PICTORIAL COMMUNICATION, e.g. TELEVISION - Details thereof
• G06F 3/048 - Interaction techniques based on graphical user interfaces [GUI]
• G06F 3/12 - Digital output to print unit

Abstract

A first temperature (T1) is obtained based on the quantity of infrared rays impinging on the lens (38) of an infrared temperature sensor (30), and a second temperature (T2) is obtained based on the temperature of a thermistor (40).  A system controller (90) performs a first temperature control for controlling the first temperature (T1) to a target temperature (S10-S12) when a detected temperature difference (ΔT) between the first temperature (T1) and the second temperature (T2) is less than a predetermined temperature difference (PT) (Y at S12), performs a second temperature control for controlling the second temperature (T2) to a target temperature (S22-S25, S42-S45) when the detected temperature difference (ΔT) is above the predetermined temperature difference (PT) (N at S12), and operates an alarm (29) (S60) if an elapsed time (C2) during which the second temperature control is performed continuously reaches or exceeds a predetermined time (C2) (S24 & S44).

IPC Classes  ?

• G03G 15/20 - Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat

Abstract

Provided is a low-temperature fixing toner which permits the fixing of a toner image at a temperature lower than that of a conventional toner image.  The toner in an unused state does not cause blocking even after long-term storage, and an image of the toner after fixing does not cause tacking.  The toner is characterized by containing, as the essentials, a binder resin, a colorant, a hydroxyl-containing fatty acid ester wax, and an aliphatic alcohol.

IPC Classes  ?

• G03G 9/08 - Developers with toner particles
• G03G 9/087 - Binders for toner particles

Abstract

An image formation apparatus comprises: a controller for storing a charging destination charged for the execution of print processing, receiving an execution instruction input for the print processing from an operation panel while a user is logged on, and charging the stored charging destination for the execution of the print processing; and a card reader for receiving the input of a new charging destination without an operation from the operation panel while the user is logged on.  When receiving the input of the new charging destination while the user is logged on, the controller replaces the received new charging destination with the previously stored charging destination and stores the new charging destination.

IPC Classes  ?

• B41J 29/38 - Drives, motors, controls, or automatic cut-off devices for the entire printing mechanism
• G03G 21/02 - Counting the number of copies; Billing
• G06F 3/12 - Digital output to print unit
• H04N 1/00 - PICTORIAL COMMUNICATION, e.g. TELEVISION - Details thereof
• H04N 1/34 - Circuits or arrangements for control or supervision between transmitter and receiver for coin-freed systems

Abstract

Editing of moving images is facilitated. An MFP is provided with a reproducing section which reproduces moving images (S02), an insertion position determining section which when an insertion instruction is received(YES at S04) while the reproducing section reproduces a first moving image, determines that the reproduction position of the first moving image reproduced at the time is an insertion position, a static image acquisition section which acquires a static image (S07), a moving image generating section which generates a second moving image displaying the acquired static image (S08), and a synthesizing section which generates a third moving image wherein the second moving image is inserted at the determined insertion position of the first moving image (S09), and which stores the generated third moving image in an HDD (S11).

IPC Classes  ?

• H04N 5/91 - Television signal processing therefor
• G11B 27/034 - Electronic editing of digitised analogue information signals, e.g. audio or video signals on discs
• H04N 5/765 - Interface circuits between an apparatus for recording and another apparatus

Abstract

An image-forming apparatus including a cleaning blade having a long life is provided by accurately evaluating the suitability of materials for use as a cleaning blade.  The image-forming apparatus includes: an image holder which holds an image comprising a developing agent; a lubricant applicator which applies a lubricant to the image holder; and a cleaning blade which is in contact with the image holder and wipes off the developing agent.  The cleaning blade is constituted of a material in which in a tensile stress-elongation test, the integral of tensile stress with respect to elongation in the range of from an elongation of 0 to an elongation corresponding to a stress of 5 MPa is 300 MPa·% or smaller.

IPC Classes  ?

• G03G 21/10 - Collecting or recycling waste developer
• G03G 21/00 - Arrangements not provided for by groups , e.g. cleaning, elimination of residual charge

Abstract

A lubricant applicator (12) comprises a brush roller (23) which is rotated while coming into contact with an image carrier (8) and a solid lubricant (24) and which scrapes off the solid lubricant (24) and applies the solid lubricant to the image carrier (8) and a flicker (26) which is brought into contact with the brush roller (23) and which brushes off the developer adhering to the brush roller (23) when the brush roller (23) is rotated.  The brush roller (23) comprises a loop hair implanted in an endless loop.  The flicker (26) comprises a contact surface (29) forming a sharp angle, desirably, an angle θ of 5˚ to 70˚ to the tangential direction to the brush roller (23) on the upstream side in the rotating direction.  The loop hair has an inclination of 30˚ to 60˚ to the rotating axis direction of the brush roller (23).

IPC Classes  ?

• G03G 21/00 - Arrangements not provided for by groups , e.g. cleaning, elimination of residual charge

Abstract

A pressure lever (49) by which a pressure roller (44) is rotatably supported is swingably connected to a fixing frame (48) by which a fixing roller (41) is rotatably supported, and through a drive gear (59), a sector gear (58), a pressure-contact adjustment lever (51), and a pressure-contact spring (57), the settings of a fixing pressure contact force mode are made to strong and light pressure contact modes by allowing a motor (61) to adjust the position of the swing of the pressure lever (49).  A control unit (14) sets the fixing pressure contact force mode to the strong pressure contact mode in order to improve a poor curling performance of the paper if the present environment of temperature/humidity is high temperature and high humidity according to the temperature/humidity detected by a temperature/humidity sensor (67) at the start of the fixing device immediately after the power is turned on, whereas the control unit sets the fixing pressure contact force mode to the light pressure contact mode in order to improve a poor fixing performance if the present environment of temperature/humidity is low temperature and low humidity at the start of the fixing device immediately after the power is turned on.  Thus, both good fixing performance and good curling performance of paper are achieved.

IPC Classes  ?

• G03G 15/20 - Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat

Abstract

Disclosed is a sheet moistening device which moistens a sheet fed out from an image formation device for fixing an image by heating a sheet carrying a toner image, while conveying the sheet by means of rollers which rotate facing each other, wherein the end of the sheet is prevented from waving by limiting formation of a pool at a nip. A sheet moistening device comprises a moistening roller for coating a sheet with water while rotating, and a water feeding roller arranged facing the moistening roller and supplying water thereto, wherein the surface roughness of the moistening roller is set greater than that of the water supply roller arranged facing the moistening roller.

IPC Classes  ?

• G03G 15/00 - Apparatus for electrographic processes using a charge pattern
• B65H 5/06 - Feeding articles separated from piles; Feeding articles to machines by rollers
• B65H 29/70 - Article-bending or stiffening arrangements
• B65H 37/00 - Article or web delivery apparatus incorporating devices for performing specified auxiliary operations
• G03G 15/20 - Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat

Abstract

Disclosed is an image-processing device capable of providing online support service. This image-processing device comprises: a user operation data holding unit that holds user operation data which record the content of operations performed by a user; an input unit equipped with a help key which gives an instruction that begins the execution of an online support function; and a support data holding unit that holds information about a support connection destination which is connected to during online support. When this image-processing device recognizes that the help key has been pressed, said device references and assesses user operation data related to at least a portion of the content of the operation performed by the user up to the point said key was pressed, selects a support connection destination according to said assessed user operation content by referencing the support data holding unit, and requests a connection for communication with the selected support connection destination.

IPC Classes  ?

• H04N 1/00 - PICTORIAL COMMUNICATION, e.g. TELEVISION - Details thereof
• B41J 29/38 - Drives, motors, controls, or automatic cut-off devices for the entire printing mechanism
• B41J 29/42 - Scales and indicators, e.g. for determining side margins
• G06F 3/12 - Digital output to print unit

Abstract

Disclosed is an image forming apparatus that can perform toner empty stop at a proper time without lowering the concentration of toner, can maintain image quality, and is easy to use for users.  The image forming apparatus comprises a developing device that develops an electrostatic latent image on an image carrier using a toner.  The image forming apparatus has a first toner empty stop condition and a second toner empty stop condition that prohibit printing due to the exhaustion of the toner.  The first toner empty stop condition and the second toner empty stop condition are switched depending upon the condition of the apparatus.

IPC Classes  ?

• G03G 21/00 - Arrangements not provided for by groups , e.g. cleaning, elimination of residual charge
• G03G 15/01 - Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
• G03G 15/08 - Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer

Abstract

A developing device is provided with a developer accommodating container (11) which is divided into a first accommodating portion (17) and a second accommodating portion (18) that communicate with each other by communicating portions at both ends, comprises a discharge port (22) in the second accommodating portion (18), and accommodates a developer, a developer support (15) for supporting the developer in the developer accommodating container (11) to cause the developer to adhere to an image support (7), a first carrying member (12) for carrying the developer in the first accommodating portion (17) of the developer accommodating container (11) while stirring the developer, a second carrying member (13) for carrying the developer in the second accommodating portion (18) of the developer accommodating container (11) while stirring the developer, and supplying the developer to the developer support, a third carrying member (14) which is disposed between the second carrying member (13) and the discharge port (22), a first driving member (23) for rotationally driving the first carrying member (12) and the second carrying member (13), and a second driving member (24) for driving the third carrying member (14) in such a manner that the rotational direction thereof is changeable.

IPC Classes  ?

• G03G 15/08 - Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer

Abstract

A lubricant applicator (12) uniformly scraping off a solid lubricant and uniformly lubricating an image carrier comprises the solid lubricant (25) formed by solidifying a lubricant for lubricating the surface of the image carrier (8) for carrying an image formed of a developer and a brush roller (24) rotated while coming into contact with the solid lubricant (25) and the image carrier (8).  The brush roller (24) comprising an endlessly implanted loop hair (23) is rotated in the direction in which the image carrier (8) is rotated along with the loop hair.  The peripheral velocity of the brush roller is higher than 0.56 times that of the image carrier, and lower than 0.8 times that of the image carrier.

IPC Classes  ?

• G03G 21/00 - Arrangements not provided for by groups , e.g. cleaning, elimination of residual charge

Abstract

Disclosed is an electrophotographic photosensitive body which does not cause image defects such as black spots and image unevenness when image exposure is performed using light having a wavelength of 350-500 nm, which is so-called short-wavelength light.  The electrophotographic photosensitive body is characterized by having at least an intermediate layer, a charge-generating layer containing a metal phthalocyanine pigment and a charge-transporting layer on a conductive supporting body which has a skewness of the profile (Rsk) within the range of -8 < Rsk < 0.

IPC Classes  ?

• G03G 5/10 - Bases for charge-receiving or other layers
• G03G 5/06 - Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being organic
• G03G 5/14 - Inert intermediate or cover layers for charge- receiving layers
• G03G 15/00 - Apparatus for electrographic processes using a charge pattern

Abstract

Provided is an image reading device capable of clearing a transparent member, which has been incorporated into a cleaning member, of dust by a simple mechanism, thereby preventing streaky noises from being generated in a read image.  The image reading device reads the image of a document (D) optically at a reading position (A) while transferring the document (D) just above a reading glass (40) by an automatic document transfer device.  Over the reading glass (40), a brush-shaped cleaning member (45) is rotatably arranged to face the reading position (A).  Downstream in a document transfer direction (B), a dusting member (46) is arranged to clear the cleaning member (45) of the dust which has been adhered thereto by the contact with the cleaning member (45).  Before the leading end of the document (D) to be transferred proceeds into the reading position (A), the cleaning member (45) rotates to clean the surface of the reading glass (40), and the dusting action by the dusting member (46) is performed while the document (D) is covering the reading glass (40).

IPC Classes  ?

• H04N 1/04 - Scanning arrangements
• G03G 15/00 - Apparatus for electrographic processes using a charge pattern

Abstract

Disclosed are display particles for use in an image display device in such a manner that the display particles are sealed in a powder form between two substrates at least one of which is transparent followed by the generation of an electric field between the substrates to move the display particles and thus to display an image.  The display particle for an image display device is characterized in that the display particle comprises a mother particle containing at least a resin and a colorant and inorganic fine particles externally added to the mother particle and the liberation amount A of inorganic fine particles having a primary particle diameter of 5 to 60 nm liberated upon the application of a 60-μA ultrasonic wave energy to the display particles in an aqueous polyoxyethylphenylether solution for one minute is 0.1 to 2.5% by weight of the mother particle.  Also disclosed is an image display device comprising the display particles for an image display device.

IPC Classes  ?

• G02F 1/167 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect by electrophoresis
• G02F 1/17 - Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on variable-absorption elements not provided for in groups

Abstract

Provided is an image processing device in which the connection time of an external memory medium can be shortened during the execution of a plurality of jobs, which include the data to be processed encrypted by a common key and an encrypted common key encrypted by a public key of the user, and a drop in security can be prevented. A job which includes the data to be processed encrypted by a common key and the encrypted common key encrypted by a public key of a user is received and is saved in a job storage unit (21). When a plurality of saved jobs are executed, the encrypted common key included in each job is decrypted by a private key in an external storage medium (3). After the entire plurality of decrypted common keys have been retrieved, the corresponding data to be processed is decrypted by each decrypted common key, and the jobs are executed.

IPC Classes  ?

• H04L 9/08 - Key distribution
• G06F 3/12 - Digital output to print unit
• H04L 9/32 - Arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system
• H04N 1/00 - PICTORIAL COMMUNICATION, e.g. TELEVISION - Details thereof
• H04N 1/44 - Secrecy systems

Abstract

Provided are a joining structure of sheet-metal components in which two sheet-metal components can be joined with good conductivity by a screw member by simple processing and configuration and an image forming device provided with the joining structure. A joining structure of sheet-metal components in which a first sheet-metal component (31) and a second sheet-metal component (41) are joined by a screw member (50) with surfaces thereof to be joined facing each other.  A first prepared hole (32) with a diameter smaller than that of the screw member (50) is formed in the first sheet-metal component (31), and multiple first small holes (33) with a diameter smaller than that of the first prepared hole (32) are formed around the first prepared hole (32).  When the first sheet-metal component (31) and the second sheet-metal component (41) are joined by the screw member (50), the screw member (50) is screwed into the first prepared hole (32), thereby producing distortion force around the first prepared hole (32), and protrusions formed in the first small holes (33) by the distortion force are brought into contact with the second sheet-metal component (41).

IPC Classes  ?

• G03G 15/00 - Apparatus for electrographic processes using a charge pattern
• F16B 5/02 - Joining sheets or plates to one another or to strips or bars parallel to them by means of fastening members using screw-thread
• H05K 9/00 - Screening of apparatus or components against electric or magnetic fields

Abstract

A system speed is changed quickly and precisely while a CVT device excellent in quietness being used in a running transmission passage of a rotor.  If cardboard is used as a recording sheet, a DC motor acting as a running source is started (at S202).  During this start, a pair of pulley split bodies in each pulley are changed in distance (at S204) so that the CVT device may take a target reduction ratio.  On the basis of the detection signal of an encoder of the load rotation shaft of a driven pulley, the rotation of the DC motor is then feedback-controlled (at S207, if NO at S206) so that the rotation speed of the load rotation shaft may be a target value.

IPC Classes  ?

• G03G 21/00 - Arrangements not provided for by groups , e.g. cleaning, elimination of residual charge
• F16H 9/16 - Gearings for conveying rotary motion with variable gear ratio, or for reversing rotary motion, by endless flexible members without members having orbital motion using belts, V-belts, or ropes engaging a pulley built-up out of relatively axially-adjustable parts in which the belt engages the opposite flanges of the pulley directly without interposed belt-supporting members using two pulleys, both built-up out of adjustable conical parts
• G03G 15/00 - Apparatus for electrographic processes using a charge pattern
• G03G 21/14 - Electronic sequencing control

Abstract

A sheet feeder comprising a sheet receiving section (P20) having an elevating/lowering plate (960), a member (920) for regulating the sides of sheets, an air blowing section (986) for blowing air toward the sides of sheets at upper levels out of the sheets received in the sheet receiving section, a sheet suction-conveyance section (VT20) installed above the sheet receiving section with a gap kept from the uppermost sheet of the sheets received in the sheet receiving section, a reflective sensor (970) for detecting the upper limit position of stacked sheets received in the sheet receiving section, and a control section for performing control to elevate the elevating/lowering plate when an output from the reflective sensor indicates an intermediate state provided between a sheet brought into a floating state by an air flow which is blown from the air blowing section, and a sheet maintaining the stacked state.  As a result, stabilized sheet-feeding can be ensured even if a thick sheet of a small size is used, and the upper limit position of sheets can be controlled by a simple constitution.

IPC Classes  ?

• B65H 1/14 - Supports or magazines for piles from which articles are to be separated with means for advancing the pile to present the articles to a separating device comprising positively-acting mechanical devices
• B65H 3/12 - Suction bands, belts, or tables moving relatively to the pile
• B65H 3/48 - Air blast acting on edges of, or under, articles

Abstract

Disclosed is an organic photoreceptor that exhibits a high level of thin line reproducibility in a small-diameter exposure spot, causes no significant variation in an exposure potential in the repetition of image formation at a high speed, and can prevent the occurrence of an image memory to have durability high enough to form stable images over a long period of time.  Also disclosed is an image forming apparatus using the organic photoreceptor.  The electrophotographic photoreceptor comprises an electroconductive support and a charge generating layer and a charge transport layer provided in this order on the electroconductive support.  The electrophotographic photoreceptor is characterized in that the charge transport layer contains a resin comprising a repeating unit represented by general formula (1) and a charge transport material represented by general formula (2) and an ultraviolet absorber is contained in an amount of not less than 0.1% by mass and not more than 30.0% by mass of the charge transport material.

IPC Classes  ?

• G03G 5/05 - Organic bonding materials; Methods for coating a substrate with a photoconductive layer; Inert supplements for use in photoconductive layers
• C07C 69/94 - Esters of carboxylic acids having an esterified carboxyl group bound to a carbon atom of a six-membered aromatic ring of polycyclic hydroxy carboxylic acids, the hydroxy groups and the carboxyl groups of which are bound to carbon atoms of six-membered aromatic rings
• C07C 211/54 - Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to two or three six-membered aromatic rings
• G03G 5/06 - Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being organic

Abstract

Provided is an image forming apparatus having a fixing device for fixing an image at a nip portion formed of two rotating bodies which rotate while facing each other, wherein occurrence of uneven print gloss is prevented. The image forming apparatus having a fixing device for fixing an image at a nip portion formed of two rotating bodies which rotate while facing each other, wherein one of the two rotating bodies is a belt which rotates while being stretched by means of a plurality of rollers, a roller arranged at the outlet of the nip portion out of the plurality of rollers has a crown shape, and a member for absorbing slack abuts on the belt in order to absorb slack at the opposite ends of the belt caused by the roller having a crown shape.

IPC Classes  ?

• G03G 15/20 - Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat

Abstract

Disclosed is an image forming device which can prevent occurrence of damage on the surface of a fixing roller or a fixing belt due to the contact of the end of a sheet with the fixing roller or fixing belt. The image forming device, for transferring a toner image to a sheet fed out from a sheet feed section and fixing the toner image to the sheet by pressing the sheet carrying the toner image at a fixing section, comprises a moving means for moving the sheet and or the fixing section in the direction at right angles to the traveling direction of the sheet within a preset moving range, the moving means being controlled based on a preset operation pattern.

IPC Classes  ?

• G03G 15/20 - Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat

Abstract

An organic photosensitive material has a photosensitive layer on a conductive support body, and the photosensitive layer has a protective layer.  The protective layer is formed of alumina particles having a reactive organic group.  It is thereby possible to increase the abrasion resistance of the organic photosensitive material to the level of that of an amorphous silicon photosensitive material and solve the problem of image deletion and/or image blurring which tends to be caused under hot and humid conditions or the like.  In the organic photosensitive material, an electronic photography image with high durability and high quality can be thus achieved.

IPC Classes  ?

• G03G 5/147 - Cover layers

Abstract

Provided is a book binding device which can make a booklet where a bonded portion is not stripped off to cause loss of coated paper when the booklet is spread even if the booklet is made by binding a bundle of sheets in which different kinds of sheets such as plain paper and coated paper are mixed.  The book binding device comprises a section for forming a cut in the end side of a conveyed sheet, a control section for controlling the section for forming a cut, and a selection section for selecting each sheet for the presence/absence of a cut to be formed by the section for forming a cut, wherein the control section controls the formation of a cut by the section for forming a cut based on the presence/absence of the formation of a cut selected by the selection section, and then the mixture of sheets in which cuts are formed and sheets in which cuts are not formed are bundled and bound to complete a booklet.

IPC Classes  ?

• B42C 5/04 - Preparing the edges or backs of leaves or signatures for binding by notching or roughening
• B42C 9/00 - Applying glue or adhesive peculiar to bookbinding

Abstract

Provided is a developing device which can prevent the occurrence of a phenomenon of an excessive increase of a developer quantity in a developer standby space, thereby acquiring a stable image.  The developing device comprises a developer agitation-transfer means, a developer roller, a developer feeding roller, a developer guide member and a space forming member.  The developing device is characterized in that the developer feeding roller rotates to transfer the developer transferred by the agitation-transfer means, upward from the clearance between the developer feeding roller and the developer guide member, and in that, when the developer standby space formed in the device is filled with the developer transferred by the developer feeding roller, the developer feeding roller is rotated to carry the developer, which overflows from the developer standby space, and to move the same in the direction away from the developer roller, so that the developer is once discharged from the developer standby space.

IPC Classes  ?

• G03G 15/08 - Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer

Abstract

Disclosed is a fixing device wherein occurrence of poor image can be minimized by a simple constitution using a pressure distribution in which the pressing force from a pressure pad to a separation member increases gradually.  A fixing device comprises a fixing roller which rotates while having an elastic layer and a heating means, an endless fixing belt which is driven by the fixing roller to rotate, a pressure member for pressing the fixing belt from the inner circumferential surface side to bring the fixing belt into pressure-contact with the fixing roller and elastically deforming the fixing belt, and a separation member arranged on the downstream side in the conveyance direction of a recording material with respect to the pressure member and deforming the elastic layer of the fixing roller elastically by pressing the fixing belt from the inner circumferential surface side to bring the fixing belt into pressure-contact with the fixing roller, and fixes a toner image on the recording material being conveyed by a nip portion formed between the fixing roller and fixing belt.  The fixing device is characterized in that the surface of the pressure member on the side of the fixing belt is arranged to project to the side of the fixing roller as advancing to the downstream side in the conveyance direction of a recording material.

IPC Classes  ?

• G03G 15/20 - Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat

Abstract

Provided is an image forming device which can ensure image stability and productivity immediately after reset, even if a processing operation during a running stabilization control is interrupted. The image forming device (100) comprises an image forming section (43) for forming a toner image being transferred to the image region of an image carrier (20) and a correcting toner image (T) in the non-image region, a sensor (30) for detecting the density information of the correcting toner image (T), and a control section (40) performing stabilization control by correcting the imaging conditions based on the density information of the correcting toner image (T), wherein the control section (40) forms a plurality of correcting toner image (T) of different densities over a plurality of non-image regions, forms the not-yet-formed remaining correcting toner image (T) continuously on the image carrier (20) when second information is received while stabilization control is running, and finishes the processing operation in a running stabilization control after detecting the density information of correcting toner image (T) which are formed continuously.

IPC Classes  ?

• G03G 15/01 - Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
• B41J 2/52 - Arrangement for printing a discrete number of tones, not covered by group , e.g. applicable to two or more kinds of printing or marking process
• B41J 29/38 - Drives, motors, controls, or automatic cut-off devices for the entire printing mechanism
• B41J 29/46 - Applications of alarms, e.g. responsive to approach of end of line
• G03G 21/00 - Arrangements not provided for by groups , e.g. cleaning, elimination of residual charge
• H04N 1/29 - Reproducing arrangements involving production of an electrostatic intermediate picture

Abstract

The object aims to improve the reproducibility of color and the stability in concentration of a toner. Disclosed is a toner comprising at least a resin and a coloring agent, wherein the coloring agent comprises a compound represented by general formula (1) and a compound represented by general formula (2). [In general formula (1), R1 to R8 independently represent a hydrogen atom, a halogen atom, an alkyl group, or an alkyl group containing a fluorine atom, provided that at least one of R1 to R8 represents a chlorine atom.] [In general formula (2), R1 to R4 independently represent a hydrogen atom, or an alkyl group having 1 to 4 carbon atoms; R5 and R6 independently represent a hydrogen atom, or an alkyl group having 1 to 2 carbon atoms; R7 represents a hydrogen atom, or an alkyl group having 1 to 4 carbon atoms; m represents a number of 1 or 2; An- represents a chlorine ion or a sulfonic acid compound ion; and n represents a number of 1 or 2.

IPC Classes  ?

• G03G 9/09 - Colouring agents for toner particles

Abstract

Provided is an image forming apparatus, which can be free from clogging in waste toner transfer passages and have a high accumulation performance in the waste toner recovering container, and can make effective use of the capacity of the waste toner recovering container, even if the structure of which is so constituted as to include a plurality of image forming units having photosensitive elements and to gather and transfer the toners removed from the individual photosensitive elements thereby to accumulate the toners in a waste toner recovering container,.  The image forming apparatus comprises a plurality of image forming units having photosensitive elements, a plurality of toner containers, cleaning units for removing the toners left on the photosensitive elements, a waste toner recovering container for accumulating the waste toners removed from the photosensitive elements, and waste toner transfer passages connecting the cleaning units and the waste toner recovering container, for transferring the waste toners to the waste toner recovering container.  The waste toner transfer passages, which is formed in the image forming unit using the toner container of the largest capacity, for transferring the waste toners in the cleaning units, is to be longest.

IPC Classes  ?

• G03G 21/10 - Collecting or recycling waste developer
• G03G 15/01 - Apparatus for electrographic processes using a charge pattern for producing multicoloured copies

Abstract

Disclosed is a toner which can be improved in both low temperature fixing properties and offset resistance.  The toner comprises at least a binder resin and a coloring agent, wherein the binder resin comprises a polyester ionomer resin which has been reacted with a polyvalent isocyanate compound.

IPC Classes  ?

• G03G 9/087 - Binders for toner particles

Abstract

A developing agent for electrophotography is provided which is excellent in the ability to be quickly charged and in charge stability even in a high-temperature high-humidity environment or low-temperature low-humidity environment where it is difficult for developing agents to retain their electrification characteristics.  The developing agent can give, over long, an image free from fogging and a decrease in density.  This developing agent for electrophotography is characterized by containing composite oxide particles which comprise metal titanate particles containing titanium, as a first metal atom, and a second metal atom and containing therein 0.009-0.350 wt.% third metal atom selected from a group consisting of the metal atoms belonging to Group 5A of the periodic table in the long form.

IPC Classes  ?

• G03G 9/08 - Developers with toner particles
• G03G 9/10 - Developers with toner particles characterised by carrier particles
• G03G 9/113 - Developers with toner particles characterised by carrier particles having coatings applied thereto

Abstract

Provided is an image forming apparatus (1) comprising a secondary transfer belt (51) disposed at a position to face an intermediate transfer belt (43b) across the transfer passage of paper (P), a fixing belt (62) disposed on the downstream side of the secondary transfer belt (51) in the transfer direction of the paper (P) and at a position to face a rotary fixing member (61) across the transfer passage of the paper (P), a photo sensor (66) for detecting the widthwise position of the fixing belt (62), a steering roller angle changing unit (70) for making the rolling angle of a steering roller (65) changeable, and a first control unit (90) for controlling a stepping motor (75) on the basis of the signal of the photo sensor (66).  The control unit (90) does not perform the angle change of the steering roller (65), if the paper is constricted by both a transfer nip and a fixing nip.

IPC Classes  ?

• G03G 21/14 - Electronic sequencing control
• G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern
• G03G 15/20 - Apparatus for electrographic processes using a charge pattern for fixing, e.g. by using heat

Abstract

Provided is a full color image forming method wherein high color reproducibility especially on a blue system and a green system can be obtained and an excellent gradation property can be obtained in a full color image to be obtained.  The full color image forming method for forming a full color image by using at least yellow toner, magenta toner, and two kinds of cyan toners (1, 2) is characterized in that a toner image formed by the cyan toner (1) alone has the value of the maximum color saturation (C*) of not less than 50 and the value of lightness (L*) in a color space represented by an L*a*b* colorimetric system of not less than 30 and not more than 52, and that a toner image formed by the cyan toner (2) alone has the value of the maximum color saturation (C*) of not less than 50 and the value of the lightness (L*) in the color space represented by the L*a*b* colorimetric system of not less than 58 and not more than 75.

IPC Classes  ?

• G03G 15/01 - Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
• G03G 9/09 - Colouring agents for toner particles

Abstract

Provided is an image forming apparatus equipped with a transfer unit which can prevent poor transfer even when the parallelism, between a press roller in the transfer unit and an image carrier facing the press roller which is a photosensitive drum or another image carrier which is a roller for stretching an intermediate transfer belt, is shifted vertically or horizontally, and which can produce a high-quality image.  The transfer unit comprises an endless transfer belt stretched over a plurality of rollers, a pair of integrated support side plates for supporting the plurality of rollers rotatably, a pair of press side plates supported, to be able to rotate in the direction of moving toward or away from the image carriers, by means of a supporting member provided in the frame of the transfer unit, a swinging portion provided on the press side plates and supporting the support side plates swingably with respect to the image carriers when the transfer belt and the image carriers are pressed, and a member for urging the press side plates in the direction that the transfer belt presses the image carriers.

IPC Classes  ?

• G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern

Abstract

Provided is a developing device employing a two-component developer wherein a good image can be obtained by preventing the influence of scratching caused by a magnetic brush. A developing device comprises a first develop roller (41) for developing an electrostatic latent image, formed by the two-component developer on an image carrier (1), in a first development area (n1), and a second develop roller (42) for carrying toner supplied from the first develop roller (41) on the outer circumferential surface and developing the electrostatic latent image on the image carrier (1) in a second development area (n2) on the downstream side of the first development area (n1) in the rotational direction of the image carrier (1), wherein the moving direction of the outer circumferential surface of a sleeve (41A) is reverse to the moving direction of the surface of the image carrier (1) in the first development area (n1), and a position (n3) at which to supply toner from the first develop roller (41) to the second develop roller (42) is located downstream of a regulation position (n4) in the rotational direction of the first develop roller and upstream of the first development area (n1).

IPC Classes  ?

• G03G 15/08 - Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer

Abstract

Provided are a toner and a toner manufacturing method with which high image density and a broad range of color reproduction are obtained, and with which high-quality images are also obtained. The toner is formed from toner particles that contain a polyester resin-containing binder resin and a colorant, contains 10-1500 ppm of a metal element selected from titanium, germanium, and aluminum, and contains a cyclic phenol sulfide represented by general formula (1) and selected from thiacalixarene, sulfinyl thiacalixarene and sulfonyl thiacalixarene.

IPC Classes  ?

• G03G 9/097 - Plasticisers; Charge controlling agents
• G03G 9/08 - Developers with toner particles
• G03G 9/087 - Binders for toner particles

Abstract

Disclosed is an electrophotographic toner which can be fixed at a low temperature, while having high storage stability.  Fixed images formed with the electrophotographic toner are free from tacking.  The electrophotographic toner contains at least a binder resin, a coloring agent and a mold release agent, and is characterized in that the mold release agent contains at least an ester compound and an aliphatic hydroxycarboxylic acid compound.

IPC Classes  ?

• G03G 9/08 - Developers with toner particles

Abstract

Disclosed is an intermediate transfer member that, for example, even when a large number, for example, 160000 sheets of prints are prepared, does not cause cracking and toner filming, can allow good transfer properties and cleaning properties to be maintained, and can realize stable preparation of toner images having a high quality free from image defects such as middle missing. In the intermediate transfer member, an elastic layer is provided on the outer periphery of a resin base, and a surface layer is provided on the elastic layer.  The surface layer has a thickness of not less than 0.5 nm and not more than 1000 nm and comprises an intermediate layer and a hard layer composed mainly of a metal oxide.  The film density of the hard layer is not less than 2.07 g/cm3 and not more than 2.19 g/cm3 and is larger than the film density of the intermediate layer.

IPC Classes  ?

• G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern

Abstract

Disclosed is an intermediate transfer member that, for example, even when a large number, for example, 160000 sheets of prints are prepared, does not cause cracking and toner filming, can allow good transfer properties and cleaning properties to be maintained, and can realize stable preparation of toner images having a high quality free from image defects such as middle missing. In the intermediate transfer member, an elastic layer is provided on the outer periphery of a resin base, and a surface layer is provided on the elastic layer.  The surface layer has a thickness of not less than 0.5 nm and not more than 1000 nm and comprises an intermediate layer and a hard layer composed mainly of a metal oxide.  The hard layer has a carbon atom content of not more than 2.0 atomic%, and the carbon atom content of the hard layer is lower than the carbon atom content of the intermediate layer.

IPC Classes  ?

• G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern

Abstract

Disclosed is a dye-sensitized solar cell wherein an improved photoelectric conversion efficiency is realized by suppressing reverse electron transfer and improving conductivity of electrodes.  Corrosion of electrodes by an electrolyte solution is greatly suppressed in the dye-sensitized solar cell.  A method for manufacturing the dye-sensitized solar cell is also disclosed. The dye-sensitized solar cell comprises: an anode electrode wherein a conductive base containing at least a metal collector grid and a semiconductor porous film layer to which a sensitizing dye is adsorbed are arranged on a light-transmitting substrate; a cathode electrode so arranged as to face the semiconductor porous film layer of the anode electrode; and an electrolyte sealed between two electrode pieces, namely between the anode electrode and the cathode electrode.  The dye-sensitized solar cell is characterized in that an intermediate layer is arranged between the conductive base and the semiconductor porous film layer and the intermediate layer has a water vapor transmission rate of not more than 0.1 g/(m2·24h).

IPC Classes  ?

• H01M 14/00 - Electrochemical current or voltage generators not provided for in groups ; Manufacture thereof
• H01L 31/04 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof adapted as photovoltaic [PV] conversion devices

Abstract

When paper is delivered into a paper storage part (12), an air stream toward the paper storage part (12) is produced from a fan (126), and blowing is halted when the paper is discharged from the paper storage part (12). In this manner, the delivery of paper to the paper storage part (12) is guided, and the paper is also smoothly discharged from the paper storage part (12).

IPC Classes  ?

• B65H 29/24 - Delivering or advancing articles from machines; Advancing articles to or into piles by air-blast or suction apparatus
• B65H 29/58 - Article switches or diverters
• B65H 31/36 - Auxiliary devices for contacting each article with a front stop as it is piled
• G03G 15/00 - Apparatus for electrographic processes using a charge pattern

Abstract

Provided is a tubular flow reactor in which plug flow performance can be maintained even if the reactor is miniaturized and uniform fine particles of resin having a narrow distribution of particle diameter or molecular weight can be produced when the reactor is used for producing fine particles of resin by emulsion polymerization or the like. The tubular flow reactor is characterized in that the reactor includes a cylindrical channel, and the value of d/D is 0.3 to 0.9 wherein the inside diameter of the cylindrical channel is D and the diameter of a stirring blade is d, and the value of Lb/La is 0.80 to 0.99 wherein the length of the cylindrical channel is La and the length of the stirring blade is Lb.

IPC Classes  ?

• C08F 2/01 - Processes of polymerisation characterised by special features of the polymerisation apparatus used

Abstract

Image processing, which shows each small region by a predetermined number of representative colors for every small region contained in color image data indicated by C, M, Y and K, seeks a color variable value in which the degree of dispersion of values in a group becomes smaller as the K value becomes bigger from each color variable value of C, M and Y for every pixel in one small region with respect to such one small region, selects one notable variable in accordance with the degree of dispersion in the group of each sought color variable value (#104), seeks a standard value for carrying out the division of pixel groups in accordance with a relationship between the notable variable value in the group and the number of pixels in the group, divides the pixels into groups in accordance with the standard value (#106), and seeks a representative color for each group (#109).

IPC Classes  ?

• H04N 1/46 - Colour picture communication systems
• G06T 1/00 - General purpose image data processing
• H04N 1/41 - Bandwidth or redundancy reduction
• H04N 1/60 - Colour correction or control

Abstract

An intermediate transferer capable of maintaining a good secondary transfer ability and a good cleanability by a cleaning blade even after printing of a large number of printing sheets (e.g., 160,000 printing sheets), causing no hollow defects of a character image, and continuously producing a toner image with a high quality and an excellent character reproducibility. The intermediate transferer can be used for an image producing device having means for primary-transferring the toner image carried on the surface of an electrophotographic photosensitive body onto the intermediate transferer and then secondary-transferring the toner image from the intermediate transferer to a transfer member. The intermediate transferer is characterized in that an elastic layer is formed on the periphery of a resin base, a surface layer is formed on the elastic layer, the thickness of the surface layer is 10 to 500 nm, and the Young's modulus of the surface of the intermediate transferer measured by the nano-indentation method is 0.1 to 5.0 GPa and is 0.0 to 2.0 GPa larger than that of the elastic layer before the formation of the surface layer.

IPC Classes  ?

• G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern

Abstract

There are used a first information embedding method that is used for embedding first information and specified by a first information expression rule and a second information embedding method that is used for embedding second information and specified by a second information expression rule different from the first information expression rule. The first information and the second information are so embedded that at least parts of the first and second information overlap with each other in an identical area. This makes it possible to provide an information embedding method, its program, and an information embedding device capable of generating an embedded image that is beautiful in appearance because the boundary between the first and second information is inconspicuous and is also safe because it is difficult to decipher the embedded information.

IPC Classes  ?

• H04N 1/387 - Composing, repositioning or otherwise modifying originals
• B41J 5/30 - Character or syllable selection controlled by recorded information
• G03G 21/00 - Arrangements not provided for by groups , e.g. cleaning, elimination of residual charge
• G06F 3/12 - Digital output to print unit
• G06T 1/00 - General purpose image data processing

Abstract

It is possible to provide an image processing device, an image processing method, and its program which generate a positioning pattern of an information pattern in accordance with block information. This eliminates the problem that a block number cannot be identified although an information block position can be identified, i.e., the problem that information for identifying an information block cannot be sufficiently extracted. If an information pattern is identified, the extracted information can be used effectively. Moreover, it is possible to enhance the information embedding efficiency.

IPC Classes  ?

• H04N 1/387 - Composing, repositioning or otherwise modifying originals
• G06T 1/00 - General purpose image data processing

Abstract

The invention provides an intermediate transfer member which is excellent in transfer property and tight adhesion and exhibits excellent durability (release property, void generation resistance and cracking resistance) even after long-term use or storage under severe conditions; and an image formation apparatus provided with the intermediate transfer member. An intermediate transfer member comprising a substrate and the first inorganic compound layer and second inorganic compound layer lying on the substrate in this order from the substrate side, characterized in that the film thickness ratio of the second inorganic compound layer to the first inorganic compound layer is 1.0 to 5.0 and that the carbon content of the first inorganic compound layer is 0.5 to 10% by the number of atoms and the carbon content of the second inorganic compound layer is less than 0.1% by the number of atoms.

IPC Classes  ?

• G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern
• C23C 16/42 - Silicides
• C23C 16/505 - Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition (CVD) processes characterised by the method of coating using electric discharges using radio frequency discharges

Abstract

It is an object to provide an intermediate transfer member that maintains a good second transferability and a good cleaning property even when print is repeatedly carried out and continuously obtains a high quality tonner image without the occurrence of a non-printing portion of a character image, and an image forming method and a image forming device that use the intermediate transfer member. The intermediate transfer member is used for an image forming device provided with a means which, after the tonner image carried on a surface of a photosensitive member is first transferred to the intermediate transfer member, the tonner image is second transferred to a transfer member. The intermediate transfer member is characterized in that including an inorganic layer on the most outer surface, wherein the inorganic layer defines a contact angle of 30°-60° with respect to methylene iodide and the hardness of the inorganic layer measured by a nanoindentation method is in the range of 3GPa-10GPa.

IPC Classes  ?

• G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern

Abstract

It is an object to provide an intermediate transfer member that maintains a good second transferability and a good cleaning property even when print is repeatedly carried out and continuously obtains a high quality toner image without the occurrence of a non-printing portion of a character image, and an image forming method and a image forming device that use the intermediate transfer member. The intermediate transfer member is used for an image forming device provided with a means which, after the toner image carried on a surface of a photosensitive member is first transferred to the intermediate transfer member, the toner image is second transferred to a transfer member. The intermediate transfer member is characterized in including an inorganic layer on its surface, wherein the surface hardness measured by a nanoindentation technique is in the range of 3GPa-10GPa and the ten-point average surface roughness (Rz) measured by an atomic force microscope is in the range of 30nm-300nm.

IPC Classes  ?

• G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern

Abstract

There is provided an atmospheric plasma processing apparatus capable of forming a thin film having high uniformity on a cylindrical substrate stably and with high productivity. The atmospheric plasma processing apparatus has at least two substrate carrying units each holding the cylindrical substrate by a roll electrode and a guide roll and disposed at positions opposing each other. A gas containing a thin film forming gas is supplied to a discharge space formed between the opposing roll electrodes under an atmospheric pressure or a pressure near the atmospheric pressure, and a high-frequency electric field is applied to the discharge space, thereby exciting the gas. At least the two cylindrical substrates are exposed to the excited gas, so that thin films are simultaneously formed.

IPC Classes  ?

• C23C 16/505 - Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition (CVD) processes characterised by the method of coating using electric discharges using radio frequency discharges
• C08J 7/00 - Chemical treatment or coating of shaped articles made of macromolecular substances
• G03G 5/08 - Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being inorganic
• G03G 15/08 - Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer

Abstract

A data input/output system, a data input/output system control method and a data input/output system control apparatus can be provided. In the data input/output system having a plurality of input devices and a plurality of output devices, a display can be performed with a consistency maintained between an input parameter used to establish the operational condition of an input device to be used to input data and an output parameter used to establish the operational condition of an output device to be used to output the data, thereby allowing an optimum establishment of setting items, which are related to a combination between input and output devices required in a case where a multiple of input and output devices are connected to one another, to be easily done with reliability by use of a minimum number of operations and thereby eliminating erroneous operations.

IPC Classes  ?

• H04N 1/00 - PICTORIAL COMMUNICATION, e.g. TELEVISION - Details thereof
• B41J 29/38 - Drives, motors, controls, or automatic cut-off devices for the entire printing mechanism

Abstract

A data input/output system, a data input/output system control method and a data input/output system control apparatus can be provided. In the data input/output system having input and output devices, it is determined and displayed whether an output device can output an input data received from an input device, thereby allowing the output device for outputting the input data to be easily selected with reliability by use of a minimum number of operations and thereby eliminating erroneous operations.

IPC Classes  ?

• H04N 1/00 - PICTORIAL COMMUNICATION, e.g. TELEVISION - Details thereof
• B41J 29/38 - Drives, motors, controls, or automatic cut-off devices for the entire printing mechanism
• G06F 3/048 - Interaction techniques based on graphical user interfaces [GUI]

Abstract

Disclosed is a toner for electrophotography which has no problem about the dispersibility into a thermoplastic resin, can enables good color development, and has excellent transparency, color reproduction property, heat resistance, charge distribution property and offset resistance. Also disclosed is a method for forming an image by using the toner. Further disclosed is a novel squarylium dye. The toner comprises a dye represented by the general formula (1).

IPC Classes  ?

• G03G 9/09 - Colouring agents for toner particles
• C07C 13/06 - Monocyclic hydrocarbons or acyclic hydrocarbon derivatives thereof with a four-membered ring
• C09B 23/00 - Methine or polymethine dyes, e.g. cyanine dyes
• G03G 9/097 - Plasticisers; Charge controlling agents

Abstract

Provided is an optical scanner which can surely reduce noise due to high-speed rotation of a rotating polygonal mirror, by means of a simple constitution. The optical scanner is provided with the rotating polygonal mirror (4) rotatably attached to a spindle (21) arranged on a base plate (20), and a casing (15) surrounding the rotating polygonal mirror (4). The optical scanner scans a photosensitive body with beams applied from a laser diode (2) by the rotating polygonal mirror (4) rotatably driven. Of the casing (15), the outer profile of a portion in an axis direction (z) of the spindle (21) is protruded to the outside. Alternatively, the shape of the outer profile is 0.22 or more when expressed by an inverse number 1/R of an R normal line distance.

IPC Classes  ?

• G02B 26/12 - Scanning systems using multifaceted mirrors
• B41J 2/44 - Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using single radiation source, e.g. lighting beams or shutter arrangements
• H04N 1/113 - Scanning arrangements using oscillating or rotating mirrors

Abstract

It is an object to make out a color conversion table in which, when a CMYK combination is determine, a K quantity saving process is carried out, so that it hardly causes a color difference without occurrence of a tone jump. An image processing method makes out a color conversion table for converting a plurality of input colors to output ones. The image processing method is characterized in the following processes. A signal value of one color out of input and output characteristic data is variable. Signal values of the other colors extract a plurality of fixed gray scale color values. A model is made out so that, when the extracted color values are input, a difference value between input and output color values is obtained. By using the model, a difference value obtained in the case that the color value is input is added or subtracted for all the output color values to move, and, then, the output color values corresponding to the input color values are estimated, so that a color conversion table for converting a plurality of input colors to output colors is made out.

IPC Classes  ?

• H04N 1/46 - Colour picture communication systems
• G06T 1/00 - General purpose image data processing
• H04N 1/60 - Colour correction or control

Abstract

A transparent member whereupon a highly durable low-friction antifouling layer is formed, and a reading glass for a scanner are provided. The transparent member is characterized in that the low-friction antifouling film containing fluorine atoms is formed on the surface of a base material having a surface element composition containing an Fe of 0.1atm% or less and an Sn of 3atm% or less.

IPC Classes  ?

• C03C 17/30 - Surface treatment of glass, e.g. of devitrified glass, not in the form of fibres or filaments, by coating with organic material with silicon-containing compounds
• C03C 17/28 - Surface treatment of glass, e.g. of devitrified glass, not in the form of fibres or filaments, by coating with organic material
• G03B 27/62 - Holders for the original

Abstract

An intermediate transfer member that attains high transfer performance, excelling in cleaning easiness and durability; an intermediate transfer member producing apparatus that does not need any large-scale equipment, such as a vacuum unit; and an image forming apparatus including the intermediate transfer member. The intermediate transfer member for use in such an image forming apparatus is intermediate transfer member (170) including base material (175) and, superimposed thereon, ceramic film (176), characterized in that the ceramic film (176) has density (&rgr;f) satisfying the formula: 0.8ឬ&rgr;f/&rgr;b≤1 wherein &rgr;b is the density of ceramic film formed so as to have the same component ratio as that of the ceramic film (176) by thermal oxidation or thermal nitriding of a parent material.

IPC Classes  ?

• G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern
• C23C 16/30 - Deposition of compounds, mixtures or solid solutions, e.g. borides, carbides, nitrides

Abstract

Disclosed is an intermediate transfer body having higher transferability, cleanability and durability. Also disclosed are a method for manufacturing such an intermediate transfer body without requiring a large facility such as a vacuum apparatus, and an image-forming device comprising such an intermediate transfer body. Specifically disclosed is an intermediate transfer body (170) comprising a front layer (176), which is compose of at least one or more layers, on the surface of a base (175). This intermediate transfer body (170) is characterized in that the universal hardness of the base (175) is not less than 50 N/mm2 but not more than 190 N/mm2, and the hardness of the surface of the front layer (176) as measured by nanoindentation is not less than 3 GPa but not more than 11 GPa.

IPC Classes  ?

• G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern
• C08J 7/06 - Coating with compositions not containing macromolecular substances

Abstract

This invention provides an intermediate transfer medium having higher transferability and higher cleaning properties and durability, an apparatus for producing an intermediate transfer medium which does not require the provision of any large equipment such as vacuum equipment, and an image forming apparatus comprising the intermediate transfer medium. The intermediate transfer medium comprises a base material and, provided on the base material, a first inorganic compound layer containing a carbon atom and a second inorganic compound layer as a surface layer, the second inorganic compound layer not containing any carbon atom or containing a carbon atom in a smaller amount than the carbon atom in the first inorganic compound layer.

IPC Classes  ?

• G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern

Abstract

This invention provides a charging roller that can form a high-quality toner image. The charging roller comprises a support shaft and at least one resin layer provided on the circumferential surface of the support shaft. The resin layer comprises a base resin material and a carbon black dispersed in the base resin material. The carbon black has a number average particle diameter of Feret's diameters of 5 to 300 nm and contains not less than 5%, on the basis of number of particles, of primary particles.

IPC Classes  ?

• G03G 15/02 - Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices

Abstract

A composition, colorant composition or conductive composition loaded with a novel carbon black whose number average particle diameter, in terms of Feret’s diameter, falls within a given range. There is provided a composition characterized by containing carbon black of 5 to 300 nm number average particle diameter, in terms of Feret’s diameter, wherein the content of primary particles is ≥ 5% on a numerical basis. This composition is uniform in coloring and conductive properties, so that the coloring and conductive properties of a final form utilizing this composition can be uniformed.

IPC Classes  ?

• C09C 1/48 - Carbon black
• C09C 1/56 - Treatment of carbon black

Abstract

This invention provides a toner for an electrostatic charge image development, characterized by comprising a novel carbon black having a number average particle diameter of Feret's diameters of 5 to 300 nm and containing not less than 5%, on the basis of number of particles, of primary particles. The toner can prevent a change in Q/M caused by adherence onto a carrier or a sleeve, is free from fogging, toner scattering and the like, and can maintain stable performance for a long period of time.

IPC Classes  ?

• G03G 9/09 - Colouring agents for toner particles

Abstract

A development roller capable of realizing high-quality toner images. There is provided a development roller comprising a support shaft and, superimposed on the circumferential surface thereof, at least one resin layer, wherein the resin layer has, dispersed in its matrix resin material, carbon black of 5 to 300 nm number average particle diameter in terms of Feret’s diameter wherein the ratio of primary particles is 5% or higher on a number basis.

IPC Classes  ?

• G03G 15/08 - Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer

Abstract

This invention provides an intermediate transfer belt that can form a high-quality toner image. The intermediate transfer belt is put and wound around at least one pair of support shafts, and a toner image on a photoreceptor is transferred onto the intermediate transfer belt. The intermediate transfer belt comprises at least one resin layer. A carbon black having a number average particle diameter of 5 to 300 nm in terms of Fret’s diameter and comprising primary particles in an amount of not less than 5% in terms of number of particles is dispersed in a base resin material constituting the resin layer.

IPC Classes  ?

• G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern

Abstract

A carbon black that in the state of primary particles, is stable, excelling in dispersibility and fluidity. There is provided a carbon black grafted with an organic compound, characterized in that the grafting organic compound amounts to 3 to 125×10-6 mol per m2 of surface area of carbon black.

IPC Classes  ?

• C09C 1/48 - Carbon black
• C09C 1/56 - Treatment of carbon black

Abstract

This invention provides an electrophotographic electrification member having a polyurethane foam layer, which is less likely to undergo strain by compressive force, and an electrophotographic image forming apparatus using the same. The electrophotographic electrification member having a polyurethane foam layer is characterized in that the polyurethane foam layer contains tin-containing electrically conductive metal oxide particles as a polymerization catalyst for polyurethane foaming, and electrically conductive particles using carbon, the volume specific resistance of the electrically conductive metal oxide particles is less than 107 俑쮏cm, and electrically conductive particles, which do not function as the polymerization catalyst of the polyurethane foam, are contained in an amount of not less than 1% by mass and less than 20% by mass.

IPC Classes  ?

• G03G 15/02 - Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices

Abstract

A carbon black characterized by having a number-average particle diameter, in terms of Feret’s diameter, of 5 to 300 nm and by having a primary particle content, on number basis, of ≥5%.

IPC Classes  ?

• C09C 1/48 - Carbon black
• C09C 1/56 - Treatment of carbon black

Abstract

A carbon black characterized by having a number-average particle diameter, in terms of Feret’s diameter, of 5 to 300 nm, which number-average particle diameter, in terms of Feret’s diameter, exhibits a CV value ranging from 5 to 30.

IPC Classes  ?

• C09C 1/48 - Carbon black
• C09C 1/56 - Treatment of carbon black

Abstract

A carbon black characterized by containing carbon black particles of 100 to 130 average circularity degree and having a number-average particle diameter, in terms of Feret’s diameter, of 2 to 100 nm.

IPC Classes  ?

• C09C 1/48 - Carbon black
• C09C 1/56 - Treatment of carbon black

Abstract

An intermediate transfer body exhibiting high transfer performance, cleaning performance and durability, a device for producing an intermediate transfer body without requiring a large facility such as a vacuum unit, and an image forming apparatus having such an intermediate transfer body. An intermediate transfer body (170) for holding a toner image transferred from a first toner image carrier and performing secondary transfer of the toner image onto the surface of an object article is characterized in that at least a hard carbon containing layer (176) is provided on a substrate (175).

IPC Classes  ?

• G03G 15/16 - Apparatus for electrographic processes using a charge pattern for transferring a pattern to a second base of a toner pattern, e.g. a powder pattern

Abstract

A method for producing carbon black, which comprises a surface treatment step of treating the surface of a carbon black containing secondary particles comprising an aggregate structure of basic particles with an organic compound having or capable of forming an active free radical, and a grafting step of grafting the organic compound at least to a surface separated from secondary particles.

IPC Classes  ?

• C09C 1/56 - Treatment of carbon black