Provided is a color image processing device that allows high-quality printing without defects such as blotchy ink or pitch unevenness, even when using a low number of levels. In said color image processing device, which performs multi-level recording using a dither pattern (11) in which each pixel comprises a plurality of dots, said dither pattern (11) is laid out as follows: a plurality of dot (13) groups are stacked together, each of said dot (13) groups consisting of a plurality of dots lined up in a movement direction in which a thermal head (40) and a recording medium (46) move relative to each other, and the beginning of each dot (13) group is offset by one or more dots in the aforementioned movement direction relative to the dot group above or below that dot group. A halftone image comprising the abovementioned pixels is recorded using variations in density, with the growth order going either from the dot (13) at the beginning of the top row of the dither pattern (11) to the dot (13) at the end of the bottom row or from the dot (13) at the beginning of the bottom row to the dot (13) at the end of the top row.
H04N 1/405 - Conversion en demi-teintes, c.à d. conversion du signal d'image d'un original à tons continus en un signal correspondant ne possédant que deux niveaux
B41J 2/52 - Dispositions pour l'impression d'une échelle discrète de tons, non couvertes par le groupe , p.ex. applicables à plusieurs types de procédés d'impression ou de marquage
Provided is a color image processing device whereby jaggies occurring in a contour portion during printing can be reduced by simple processing. A dither pattern (11) is generated by a dither processing unit (102) for each color component extracted from data of a printing image. Printing data of an image are written in each dither pattern (11), and pixels of a printing image are expressed by blocks (12) including a plurality of dots arranged in accordance with a growth sequence. The dither processing unit (102) evenly detects for all pixels forming an image whether one or a plurality of dots constituting each pixel is outside a data region in which a color component of the image is present, and corrects the dither pattern (11) by moving dots that are outside the data region to dots that are inside the data region constituting the same pixel.
H04N 1/405 - Conversion en demi-teintes, c.à d. conversion du signal d'image d'un original à tons continus en un signal correspondant ne possédant que deux niveaux
Provided are: an illumination device provided with a configuration that maintains an LED at no greater than a required temperature by suppressing a temperature increase in a radiator member in a limited volume; and an image reading device provided with the illumination device. In order to cause heat emitted by the LED to radiate from the substrate to which the LED is mounted, a first radiator plate (43) and a second radiator plate (47) are provided to the two surfaces of the mounting substrate; the second radiator plate (47), the mounting substrate, and the first radiator plate (43) are superposed in the given order and provided on a second frame (40) that supports the mounting substrate, first radiator plate (43), and second radiator plate (47); a blower means is disposed at the first radiator plate (43) side; when viewing the second frame (40) from a direction perpendicular to the lengthwise direction thereof, the silhouette of the cross section of the second radiator plate (47) has a region protruding from the silhouette of the cross section of the first radiator plate (43); and the configuration is such that the wind from the blower means actively impinges on the first radiator plate (43) and second radiator plate (47).
H04N 1/028 - Balayage, transmission ou reproduction de documents ou similaires, p.ex. transmission de fac-similés; Leurs détails - Détails des têtes de balayage pour la lecture d'images
Provided is a document reading device that enables shading correction and that causes the ingress of foreign objects to the interior to be difficult. The document reading device has a reading unit, a glass unit, and an occluding member. The reading unit has a light source, and reads documents. The glass unit has: a glass plate that transmits light emitted from the light source; and a reference member that serves as a reference for shading correction of the reading optical system. The glass unit is disposed spaced from the reading unit, and while maintaining the space, slides between a first position, which is a state in which light emitted from the light source is transmitted through the glass plate, and a second position, which is a state in which light emitted from the light source arrives at the reference member. The occluding member is positioned at the downstream side from the reference member and the glass plate in the glass unit in the direction of conveyance of documents, and fills in at least a portion of the space between the reading unit and the glass unit.
H04N 1/19 - Dispositions de balayage utilisant des ensembles composés de plusieurs éléments
G03B 27/50 - Appareils de tirage par projection, p.ex. agrandisseur, appareil photographique de reproduction avec diaphragme à fente ou analogue se déplaçant sur l'original pour une exposition progressive
Provided is a document reading device that can increase maintainability by causing the attachment/detachment of a reading unit provided to the inside of a U-shaped document conveyance pathway formed at a document conveyance device to easy. In the document reading device, which is provided with the U-shaped document conveyance pathway (12), which reaches from a paper supply tray (10) to a paper discharge tray (11) with a reading section therebetween, and a reading unit (3), which is disposed at the inside of the U-shaped document conveyance pathway (12), a portion at the downstream side of the paper supply tray (10) at which a document is carried and a guide member (31) provided to the upstream side of the document conveyance pathway (12) contiguous with the paper supply tray (10) are configured in a manner so as to be able to be attached to and detached from the paper supply tray (10) or the document conveyance pathway (12), and the reading unit (3) can be removed from the inside of the U-shaped document conveyance pathway (12) from an opening resulting from removing a portion at the downstream side of the paper supply tray (10) and the guide member (31) of the document conveyance pathway (12).
Provided is a document reading device capable of preventing deformation or twist that occurs in a document feeding device from being transmitted to a reading carriage formed in the document feeding device. The document reading device includes: a second reading carriage (3) provided for a document feeding unit, for reading a face different from the document face read by a first reading carriage; a support frame (51) having support faces (53) for supporting the second reading carriage (3); holding members (54) for holding the second reading carriage (3) by sandwiching the second reading carriage (3) between the holding members and the support frame (51); and elastic members (55) provided between the second reading carriage (3) and the holding members (54) and pressing the second reading carriage (3) toward the support frame (51). A curved surface is formed on either the support faces (53) of the support frame (51) or faces (42) supported by the support faces (53) in the second reading carriage (3).
H04N 1/00 - Balayage, transmission ou reproduction de documents ou similaires, p.ex. transmission de fac-similés; Leurs détails
H04N 1/028 - Balayage, transmission ou reproduction de documents ou similaires, p.ex. transmission de fac-similés; Leurs détails - Détails des têtes de balayage pour la lecture d'images
Provided is a paper supply device that can increase a sheet stacking amount without deepening the depth of a paper supply tray. The paper supply device is provided with: a paper supply tray (10) that carries sheets; a feed out roller (13) that feeds out sheets by contacting the uppermost surface of the sheets on the paper supply tray (10); and a separation means (14, 15) that supplies paper by separating the sheets fed out by the feed out roller (13). The paper supply device is provided with: a rising/falling tray (41) that supports the tip side of the sheets carried at the paper supply tray (10), moves the uppermost surface of the sheets to a feed out position, and can rise/fall; a first driving means that causes the rising/falling tray (41) to rise/fall; a second driving means that causes the feed out roller (13) to rise/fall; and a control means that controls the driving of the first and second driving means. The control means controls the first and second driving means in a manner so as to raise the rising/falling tray (41) until the uppermost surface of the sheets reaches the feed out position, and then to cause the feed out roller (13) to fall to the position of contact with the uppermost surface of the sheets.
B65H 3/06 - Rouleaux ou séparateurs rotatifs analogues
B65H 1/04 - Supports ou magasins pour les piles dans lesquelles on prélève des articles adaptés pour supporter les articles en position sensiblement horizontale, p.ex. pour les enlever en partant du haut de la pile
B65H 1/14 - Supports ou magasins pour les piles dans lesquelles on prélève des articles avec moyens pour faire avancer la pile en vue de présenter les articles à un dispositif d'enlèvement comportant des dispositifs mécaniques à action directe
B65H 3/56 - Eléments, p.ex. racleurs, doigts, aiguilles, brosses, agissant sur les articles séparés ou sur la tranche de la pile
When an image formed on an intermediate transfer film is heat-transferred to a recording medium, the film surface is prevented from being deteriorated or distorted due to heat so as to enable high-quality printing. The printing apparatus of the present invention comprises a recording medium supply unit, an image formation unit which forms the image on the transfer film, a transfer unit which transfers the image on the transfer film to the recording medium, a film supply unit which supplies the transfer film, a film winding unit which winds the film, a media transport path which transports the recording medium sent from a medium supply unit to the transfer unit through an information recording unit, a film transport path which transports the transfer film sent from the film supply unit to the transfer unit through the image formation unit, a film delay unit which temporarily delays the transfer film disposed at the film transport path, a driving means which is connected to at least one of the film supply unit and the film winding unit, and a control means which controls the driving means.
B41J 2/325 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par l'application sélective de chaleur à un matériau d'impression ou de transfert d'impression sensibles à la chaleur utilisant des têtes thermiques par le transfert sélectif d'encre à partir d'un support d'encre, p.ex. à partir d'un ruban ou d'une feuille encreurs
A reading unit (3) placed on the inner side of a U-shaped feed path (12) that feeds a document is formed such that the height-axis dimension of said reading unit decreases in a direction extending toward a side having a paper delivery tray (11). Contact glass (20), a light source and a first mirror (24) are placed in the reading unit (3) at an end portion of the side having the paper delivery tray (11). Multiple reflecting mirrors (25, 26 and 27), a lens (28) and a photoelectric converter element (29) are placed further from the paper delivery tray than the first mirror (24) in the reading unit. This structure enables the reading unit provided in a document feeder to be more compact while ensuring the required light path length, and enables the entire document feeder to be more compact.
H04N 1/00 - Balayage, transmission ou reproduction de documents ou similaires, p.ex. transmission de fac-similés; Leurs détails
H04N 1/028 - Balayage, transmission ou reproduction de documents ou similaires, p.ex. transmission de fac-similés; Leurs détails - Détails des têtes de balayage pour la lecture d'images
H04N 1/19 - Dispositions de balayage utilisant des ensembles composés de plusieurs éléments
Provided is an image scanning unit which makes it possible to improve scanning accuracy while also making the overall body thinner by appropriately positioning a plurality of reflection members within an effective space in a carriage frame without wasting space. An image scanning unit, wherein a frame is divided into at least two spaces facing an irradiation surface, a first accommodation unit for accommodating a light source unit is formed in one of the spaces, a second accommodation unit for accommodating at least one reflection member is formed in the other adjacent space, a first reflection member for initially receiving light reflected from the irradiation surface is positioned at the side opposite the irradiation surface with the first accommodation unit positioned therebetween, and a light-shielding member is provided between the first reflection member and the reflection member positioned in the other space and prevents light that has strayed from a scanning light path from the first reflection member from being incident on the reflection member in the other space.
G03B 27/50 - Appareils de tirage par projection, p.ex. agrandisseur, appareil photographique de reproduction avec diaphragme à fente ou analogue se déplaçant sur l'original pour une exposition progressive
H04N 1/028 - Balayage, transmission ou reproduction de documents ou similaires, p.ex. transmission de fac-similés; Leurs détails - Détails des têtes de balayage pour la lecture d'images
The purpose of the present invention is to provide an illumination device in which there is no variation in light intensity distribution of the illumination device, and in which illumination spots, particularly light intensity spots, are not prone to occur in a read image in an image reading device, by maintaining a constant gap between a light source and an end surface of a transparent material. This illumination device comprises: a transparent material provided with an end surface for taking in light, a diffuse reflection surface for diffusely reflecting the light taken in from the end surface, and a light emitting surface for emitting the light that is diffusely reflected by the diffuse reflection surface towards an irradiated surface; and a light source facing at least one end surface of the transparent material; wherein a reflector provided with a reflecting surface for reflecting the light from the light source towards one end surface of the transparent material is provided, a flange for contacting the reflector is formed on one end surface of the transparent material, the light source is attached to a circuit board on which the light source is packaged, and the reflector is sandwiched by the circuit board and the flange of the transparent material and is maintained at a predetermined interval from the light source and the transparent body.
H04N 1/028 - Balayage, transmission ou reproduction de documents ou similaires, p.ex. transmission de fac-similés; Leurs détails - Détails des têtes de balayage pour la lecture d'images
Provided is a printer that, when a transfer film is peeled from an ink ribbon, enables a large peeling angle to be achieved by configuring so that the transport direction at the peeling position on the transfer film advancing route different from the advancing direction. The printer feeds an ink ribbon (41) and a transfer film (46) to the printing position between a platen roller (45) and a thermal head (40) that are pressed against one another and forms an image on the transfer film (46). The transfer film (46) forms is wound along a predetermined traveling path formed between the supply spool (48) and the winding spool (47) of a film cassette (100) that is detachably fitted to a device frame. A film conveying roller (49) and pinch rollers (32a, 32b) are disposed at a position at which the transfer film (46) traveling path is displaced by a predetermined distance towards the cassette interior.
B41J 2/325 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par l'application sélective de chaleur à un matériau d'impression ou de transfert d'impression sensibles à la chaleur utilisant des têtes thermiques par le transfert sélectif d'encre à partir d'un support d'encre, p.ex. à partir d'un ruban ou d'une feuille encreurs
Provided is an information recording device with which it is possible, when a card or other recording medium is stuck within a conveyance route, to easily carry out a jam processing task thereon with a simple operation. A card storage unit and a medium conveyance route which transports a card to an image forming unit are positioned vertically with respect to each other within a housing, and a route opening-closing member in order to remove a card which is jammed in the image forming unit is disposed therebetween. An electronic information recording means is installed in the path opening-closing member, and a medium conveyance path which transports the card toward the electronic information recording means is disposed within a medium intake route which supplies the card from the card storage unit to the medium conveyance route. It is thus possible to easily extract to the outside of the device a card which is stuck in the image forming unit and the information recording unit by opening the card storage unit.
G06K 17/00 - Méthodes ou dispositions pour faire travailler en coopération des équipements couverts par plusieurs des groupes principaux , p.ex. fichiers automatiques de cartes incluant les opérations de transport et de lecture
G06K 13/067 - Contrôle de la présence, de l'absence, de la position correcte ou de l'état de mouvement des cartes
Disclosed is a printing device provided with a transfer roller (33) for transferring an image formed on a transfer film (46) to a card, a releasing member (34b) for releasing the transfer film (46) from the card after the image transfer, and a transfer roller lifting/lowering means (61) and a releasing member lifting/lowering means (62) for lifting/lowering the transfer roller (33) and releasing member (34b), respectively. Thereby, the transfer roller (33) and the releasing member (34b) are respectively lifted/lowered at a predetermined time before the transfer and after the transfer, so that stable image forming can be always performed without damaging or deforming the transfer film.
B41J 2/325 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par l'application sélective de chaleur à un matériau d'impression ou de transfert d'impression sensibles à la chaleur utilisant des têtes thermiques par le transfert sélectif d'encre à partir d'un support d'encre, p.ex. à partir d'un ruban ou d'une feuille encreurs
B41J 2/32 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par l'application sélective de chaleur à un matériau d'impression ou de transfert d'impression sensibles à la chaleur utilisant des têtes thermiques
A locking member (106) moves between a locking position at which a cassette that has been inserted into a device main body is locked, and a locking release position at which locking is released allowing the cassette to be extracted from the device main body. Furthermore, an ejection member (107) moves between an ejection position at which the ejection member (107) comes into contact with a receiving member (111) provided in the device main body and thereby ejects the cassette in the extraction direction, and a retracted position. A locking release member (100) is pivotably attached to the surface of the cassette, and when the locking release member (100) is pivoted from a first position to a second position, the locking member (106) moves from the locking position to the locking release position and the ejection member (107) moves from the retracted position to the ejection position.
An image reading device capable of reading document images with different degrees of glossiness, with a reproducibility appropriate for an application, and provided with a data processing means is provided. The data processing means radiates light onto the document image from a regular reflection light source and a diffuse reflection light source to generate image data based on a regular reflection output value and a diffuse reflection output value obtained from a photoelectric conversion means. A corrected output value that has corrected this data processing means by the regular reflection corrected value, based on a regular reflection correction value, which corrects shading for the regular reflection output value, a diffuse correction value, which corrects shading for the diffuse reflection output value, and a determination threshold value for determining whether or not the regular reflection output values are gloss pixels, is compared with a judgment threshold value to obtain gloss pixel data. Non-gloss pixel data is obtained from a corrected output value corrected by the diffuse correction value.
Disclosed is a device capable of guiding regular reflected light from an input surface to reflecting mirrors when projecting light from a light source upon the input surface from two different directions, and that is optimized for the input of glossy images. A light source that projects light from two directions of different angles upon an input surface is configured of a first light emitting body and a second light emitting body. A mirror reflective surface, which reflects light, and a translucent surface, wherethrough light passes, are formed upon the obverse surface of a reflector member that deflects light from the input surface upon prescribed input light paths. The first light emitting body is positioned between the platen and the platen-side surface of the reflector member, and the second light emitting body is positioned at the rear surface of the reflector member so as to project light upon the input surface through the translucent surface.
G03B 27/50 - Appareils de tirage par projection, p.ex. agrandisseur, appareil photographique de reproduction avec diaphragme à fente ou analogue se déplaçant sur l'original pour une exposition progressive
Disclosed is a printing device (1) provided with a chassis (2). A card stacker (3) is disposed in the upper part of the chassis (2). Cards stacked parallel to each other are contained inside the card stacker (3). Contained inside the chassis (2) are: a straight card transport path (CP) and a card-rotation unit (4) disposed below the card stacker (3); a printing unit (PR) provided below the card transport path (CP); various sensors; and a control unit. A card storage unit (29) is disposed outside the furthest-downstream part of the card transport path (CP). Cards that have been processed already are stored in the card storage unit (29), stacked so as to overlap each other. The card stacker (3) increases the quantity of cards supplied, and by positioning the card transport path (CP) in the top of the chassis (2), the card storage unit (29) can be made higher. This reduces the size of the device and results in a printing device capable of high-volume output when provided with a high volume of printing media.
Disclosed is a printing device which provides high printing quality. The printing device includes: an image forming section which has a thermal head (9) and a platen roller (12); a media conveyance section for conveying an intermediate transfer film (F); a ribbon conveyance section for conveying an ink ribbon (R); a sensor (10) for detecting a first mark formed on the film (F); and a control section for controlling the image forming section, the media conveyance section, and the ribbon conveyance section in accordance with output information from the sensor (10). The control section presses the head (9) into contact with the roller (12) when the first mark is not detected, which is when the first mark is further upstream than the position of the sensor (10), while the film (F) and the ribbon (R) are being conveyed, and selectively heats a heating element formed in the head (9) when the film (F) is positioned in the printing start position, which is a state in which the first mark is detected when the first mark is further downstream than the position of the sensor (10).
B41J 2/325 - Machines à écrire ou mécanismes d'impression sélective caractérisés par le procédé d'impression ou de marquage pour lequel ils sont conçus caractérisés par l'application sélective de chaleur à un matériau d'impression ou de transfert d'impression sensibles à la chaleur utilisant des têtes thermiques par le transfert sélectif d'encre à partir d'un support d'encre, p.ex. à partir d'un ruban ou d'une feuille encreurs
brevets
