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Class Information
Number: 399/112
Name: Electrophotography > Having particular structure > Modular or displaceable > Process cartridge unit > Color
Description: Subject matter wherein the process cartridge unit is capable of producing a copy that has more than one color.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7567769 |
Electrophotographic color image forming apparatus |
Jul. 28, 2009 |
| 7565096 |
Image forming apparatus and image carrier unit |
Jul. 21, 2009 |
| 7565092 |
Photosensitive member cartridge, developer cartridge and process cartridge with at least one engaging portion |
Jul. 21, 2009 |
| 7555245 |
Image forming apparatus with cam members |
Jun. 30, 2009 |
| 7542702 |
Image forming apparatus having a simple cassette of image bearing photoconductors |
Jun. 2, 2009 |
| 7522858 |
Photosensitive-member unit and image forming apparatus |
Apr. 21, 2009 |
| 7489889 |
Image formation apparatus and photoreceptor cartridge |
Feb. 10, 2009 |
| 7486916 |
Method and apparatus of image forming and process cartridge included in the apparatus |
Feb. 3, 2009 |
| 7483648 |
Process cartridge and image forming apparatus using the same |
Jan. 27, 2009 |
| 7474866 |
Sealing member, toner supply container, and toner supply system |
Jan. 6, 2009 |
| 7447460 |
Color image forming device having an output toner transport member |
Nov. 4, 2008 |
| 7444100 |
Image forming apparatus with a removable holder for holding developing devices |
Oct. 28, 2008 |
| 7428394 |
Electronic color photography apparatus |
Sep. 23, 2008 |
| 7426355 |
Tandem photosensitive-member unit having grip part |
Sep. 16, 2008 |
| 7382988 |
Image forming apparatus |
Jun. 3, 2008 |
| 7362987 |
Image forming apparatus |
Apr. 22, 2008 |
| 7333751 |
Electrophotographic process unit and image forming apparatus |
Feb. 19, 2008 |
| 7206523 |
Color image forming apparatus and method using detachable process units |
Apr. 17, 2007 |
| 7187886 |
Image forming apparatus having a securing member to secure an image forming unit to a housing body |
Mar. 6, 2007 |
| 7177556 |
Image formation device and recording agent cartridge attached thereto |
Feb. 13, 2007 |
| 7155148 |
Image forming apparatus |
Dec. 26, 2006 |
| 7139508 |
Image forming cartridge and image forming apparatus |
Nov. 21, 2006 |
| 7130562 |
Coupling retraction mechanism for an image forming device |
Oct. 31, 2006 |
| 7127197 |
Image forming apparatus with stopper for preventing rotation of a developing unit |
Oct. 24, 2006 |
| 7113724 |
Tandem color image forming device |
Sep. 26, 2006 |
| 7076187 |
Electrophotographic printer |
Jul. 11, 2006 |
| 7072602 |
Image forming apparatus and image forming unit |
Jul. 4, 2006 |
| 7031638 |
Color image forming apparatus with a removable and inclined intermediate transfer body unit |
Apr. 18, 2006 |
| 7024133 |
Image forming apparatus using a user installable process cartridge, a method of arranging the process cartridge, and the process cartridge itself |
Apr. 4, 2006 |
| 7010244 |
Color electrophotographic printer having photosensitive drum protection device and method of operating same |
Mar. 7, 2006 |
| 7002608 |
Tandem type color image forming device having a plurality of process cartridges arrayed in running direction of intermediate image transfer member |
Feb. 21, 2006 |
| 6978102 |
Ejection apparatus and method |
Dec. 20, 2005 |
| 6947687 |
Cartridge having locking portion for locking cartridge with an image forming apparatus and releasing portion to release the locking portion, and image forming apparatus having such a cartridge |
Sep. 20, 2005 |
| 6917775 |
Dismountable image forming cartridge, and a corresponding image forming apparatus and method |
Jul. 12, 2005 |
| 6912364 |
Consumable product unit, consumable product replacement sensing system and method thereof |
Jun. 28, 2005 |
| 6873811 |
Printer imaging components protection apparatus and method |
Mar. 29, 2005 |
| 6836630 |
Reduction of wear on selected components in multi-color imaging apparatus |
Dec. 28, 2004 |
| 6782219 |
Cartridge and electrophotographic image forming apparatus |
Aug. 24, 2004 |
| 6738590 |
Image forming apparatus with detachable image forming unit assembly |
May. 18, 2004 |
| 6725003 |
Image forming apparatus having a supporting device for supporting imaging units |
Apr. 20, 2004 |
| 6721521 |
Image forming apparatus |
Apr. 13, 2004 |
| 6708011 |
System for forming color images |
Mar. 16, 2004 |
| 6647227 |
Intermediate transfer type image forming apparatus and method thereof |
Nov. 11, 2003 |
| 6647226 |
Image forming apparatus having a plurality of image forming units with handles |
Nov. 11, 2003 |
| 6580887 |
Image forming apparatus including structural members between consecutive optical writing devices |
Jun. 17, 2003 |
| 6487376 |
Upgradeable imaging systems with configurable printing routines |
Nov. 26, 2002 |
| 6484003 |
Color image forming apparatus with rack having detachable units |
Nov. 19, 2002 |
| 6459868 |
Image forming apparatus having a plurality of image forming units with positioning feature and assembling method therefor |
Oct. 1, 2002 |
| 6400917 |
Image forming apparatus for reducing banding caused by vibration of stacked image forming cartridges |
Jun. 4, 2002 |
| 6397016 |
Image forming apparatus having a plurality of image forming units and translucent toner detection window |
May. 28, 2002 |
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