Abstract

Provided is an operation control program causing a computer built in an image formation device to function as: a service unit which judges an operation service requested by a user, selects one or more job scenarios prepared in advance as constituent elements of the job, and builds a job corresponding to the operation by using the job scenario(s); and a job execution unit which executes processes indicated by each of the job scenarios constituting the job built by the service unit.

IPC Classes  ?

• G06F 9/48 - Program initiating; Program switching, e.g. by interrupt
• G06F 3/12 - Digital output to print unit
• G06T 1/20 - Processor architectures; Processor configuration, e.g. pipelining
• H04N 1/00 - PICTORIAL COMMUNICATION, e.g. TELEVISION - Details thereof

Abstract

A toner cartridge (20) is provided with a cartridge main body (21) as a container filled with a developer, and a shutter mechanism (25) which opens/closes a developer discharging port (231) formed on the cartridge main body (21). The cartridge main body (21) is provided with a pair of end walls (a left end wall (22) and a right end wall (23)) facing each other, and a body section (24) arranged between the pair of end walls (22, 23). The body section (24) has a Reuleaux-polygonal cross section that orthogonally intersects with the tube center direction.

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 bias correction means performs first bias correction operation where a first operation is performed by comparing a first charged current value, which is detected when a first charged bias is applied as an initial set value, with a target charged current value, and determining a second charged bias based on the comparison results. Then, in the first bias correction operation, a second operation is performed by comparing a second charged current value, which is detected when a second charged bias is applied, with a target charged current value, and determining a third charged bias based on the comparison results. In the first bias correction operation, the first operation and the second operation are repeated a predetermined number of times. Then, second bias correction operation is performed by correcting a charged bias obtained as a result of first bias correction operation based on photosensitive body information about the temperature of a photosensitive body.

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
• G03G 21/14 - Electronic sequencing control

Abstract

A system and method for trapping in electrophotographic color printing and related technologies for printing or display in which the final image is an overlay of multiple components subject to alignment errors. Trapping is based on the cyan (C), magenta (M), and black (K) planes. There are four steps as follows: detect object edges on each of the four color planes; detect coincident and opposing edge transitions on each pair of planes (CM, CK, and KM); determine which plane to trap, i.e., to extend object across edge; and generate trap on that plane using a simple trap generation rule and a single trap generation rule.

IPC Classes  ?

• H04N 1/387 - Composing, repositioning or otherwise modifying originals
• H04N 1/56 - Processing of colour picture signals
• H04N 1/58 - Edge or detail enhancement; Noise or error suppression, e.g. colour misregistration correction

Abstract

An optical scanning device is constituted such that the angle of the reflecting surface of the final reflecting mirror arranged in the optical path of such one of four optical beams corresponding to the individual colors of black, cyan, magenta and yellow as corresponds to a black image of the lowest brightness but a high visibility is the closest to a vertical, and such that the angle of the reflecting surface of the final reflecting mirror arranged in the optical path of the optical beam corresponding to a yellow image of the highest brightness but a low visibility is the closest to a horizon. The color image, which is formed by reflecting the optical beam having passed through a correcting lens with the final reflecting mirror, is reduced in its color deviation.

IPC Classes  ?

• G02B 26/10 - Scanning systems
• 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
• G03G 15/01 - Apparatus for electrographic processes using a charge pattern for producing multicoloured copies

Abstract

An optical scanner in which the number of folding mirrors disposed in the optical path of the light beam corresponding to the yellow image whose brightness is highest and whose visibility is lowest is largest out of four light beams corresponding to the four colors: cyan, magenta, yellow, and black, and in which the number of folding mirrors disposed in the optical path of the light beam corresponding to the black image whose brightness is lowest and whose visibility is highest is smallest. Therefore, the color variation of the color image attributed to the folding of the light beam by the folding mirrors can be reduced.

IPC Classes  ?

• G03G 15/01 - Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
• 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
• G02B 26/10 - Scanning systems
• H04N 1/04 - Scanning arrangements
• H04N 1/113 - Scanning arrangements using oscillating or rotating mirrors

Abstract

A magnetic one-component toner for developing an electrostatic latent image for use in a magnetic one-component jumping development system, wherein the photo-sensitizer thereof is a-Si photo-sensitizer having a film thickness of 30 騜m or less, a carrier for a developing agent has an Rz of 2.0 to 6.0 騜m and the means for removing a toner from the surface of the above photo-sensitizer is a cleaning blade, and wherein said toner contains a titanium oxide added as an external additive, and the titanium oxide has a liberation percentage in the range of 10 to 22 % and contains a low resistance titanium oxide having a volume specific resistance value in the range of 100 to 107 俑 cm and a high resistance titanium oxide having a volume specific resistance value in the range of 108 to 1013 俑 cm in a mass ratio of the low resistance titanium oxide : high resistance titanium oxide = 1.3 : 1 to 4 : 1.

IPC Classes  ?

• G03G 9/08 - Developers with toner particles
• G03G 5/08 - Photoconductive layers; Charge-generation layers or charge-transporting layers; Additives therefor; Binders therefor characterised by the photoconductive material being inorganic
• G03G 9/083 - Magnetic toner particles