| Patent Number |
Title Of Patent |
Date Issued |
| D474497 |
Image forming apparatus |
May 13, 2003 |
|
| D474232 |
Image forming apparatus |
May 6, 2003 |
|
| 7555249 |
Process cartridge, developer supply cartridge and electrophotographic image forming apparatus |
June 30, 2009 |
| A developer supply cartridge supplies developer into a process cartridge and is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The process cartridge includes a drum, a developing roller, a receiving-side shutter opening and closing a develo |
| 7457569 |
Process cartridge, developer supply cartridge and electrophotographic image forming apparatus |
November 25, 2008 |
| A developer supply cartridge supplies a developer into a process cartridge, and is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The process cartridge includes a drum, a developing roller, a receiving-side shutter portion opening and closi |
| 7346298 |
Developing device, process cartridge, and electrophotographic image-forming apparatus |
March 18, 2008 |
| A developing device includes a developer container divided into a developing section and a mixing section in which developer is conveyed in the opposite directions. A conveying member which conveys the developer in the longitudinal direction is disposed only in the developing section, |
| 7310489 |
Process cartridge including first and second portions to be positioned and first and second port |
December 18, 2007 |
| A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus. The cartridge includes an electrophotographic photosensitive drum, a developing roller, a drum unit for rotatably supporting the drum, first and second portions to be positi |
| 7257353 |
Developing apparatus |
August 14, 2007 |
| A developing apparatus develops a latent image formed on an electrophotographic photosensitive member with a developer in an electrophotographic image forming apparatus The device includes a developer accommodating portion and a developer stirring member stirring the developer in the |
| 7233752 |
Process cartridge and electrophotographic image forming apparatus |
June 19, 2007 |
| A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus includes first and second end covers, first and second bottom-surface portions to be guided by first and second main assembly guide portions, first, second, and third portion |
| 7085516 |
Process cartridge and electrophotographic image forming apparatus |
August 1, 2006 |
| A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus, includes a first frame; a second frame coupled with the first frame for rotation about a shaft relative to each other; a first electrical contact, provided in the first fram |
| 7027754 |
Process cartridge and electrophotographic image forming apparatus |
April 11, 2006 |
| A process cartridge detachably mountable to a main assembly of an electrophotographic image forming apparatus includes first and second end covers, first and second bottom-surface portions to be guided by first and second main assembly guide portions, first, second, and third portion |
| 6947686 |
Process cartridge and spacer for same |
September 20, 2005 |
| A process cartridge detachably mountable to a main assembly of an image forming apparatus includes an electrophotographic photosensitive drum; a developing roller for developing an electrostatic latent image formed on the drum; a first frame supporting the drum; a second frame supporting |
| 6560422 |
DEVELOPMENT CARTRIDGE, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS, AND T |
May 6, 2003 |
| A toner seal member to be used for sealing a developer container including a developer accommodating portion for accommodating a developer; and an opening for supplying the developer from the developer accommodating portion, the toner seal member being for sealing the opening, wherein th |
| 6496667 |
Cartridge detachably attachable to image forming apparatus |
December 17, 2002 |
| A cartridge detachably mountable to a main body of an image forming apparatus, includes a developing frame, a developer carrying member provided in the developer frame and adapted to hold and carry developer, a developer containing container for containing the developer and for suppl |
| 6480687 |
Process cartridge, handle attaching method and electrophotographic image forming apparatus |
November 12, 2002 |
| A process cartridge detachably mountable to a main body of an electrophotographic image forming apparatus includes an electrophotographic photosensitive drum; a process device acting on the electrophotographic photosensitive drum; a cartridge frame for supporting the photosensitive d |
| 6463232 |
Handle, process cartridge, handle attaching method and electrophotographic image forming apparat |
October 8, 2002 |
| A process cartridge detachably mountable to a main body of an electrophotographic image forming apparatus includes an electrophotographic photosensitive drum; a process device acting on the photosensitive drum; a cartridge frame for supporting the photosensitive drum; a first bearing |
| 6438347 |
DEVELOPING DEVICE FEATURING A CONTROL MEMBER HAVING A CENTER PORTION WIDTH WIDER THAN END PORTIO |
August 20, 2002 |
| In a developing device, a developer carrier carries developer and a control member controls the thickness of the developer on the developer carrier. The control member has an abutting member that abuts against a reference plane of a main body of the developing device and an elastic membe |
| 6381430 |
Assembling and disassembling methods for developing cartridge |
April 30, 2002 |
| An assembling method of a cartridge detachably mountable to a main assembly of an image forming apparatus and having a developing device, the method including the steps of: preparing a container unit provided with a developing frame; mounting a toner supplying roller to the developing |
| 6282395 |
Developing device and process cartridge |
August 28, 2001 |
| In a developing device, a developer carrier carries developer and a control member controls the thickness of the developer on the developer carrier. A connection member that connects the control member to a main body of the developing device controls lateral movement of the control membe |
| 6181897 |
Developing apparatus |
January 30, 2001 |
| A developing apparatus including a developing container provided with an opening portion, a developer bearing member, seal members, a flexible sheet member provided extending in a lengthwise direction of the developer bearing member and provided with overlapping portions overlapping the |
| 6115567 |
Support part, developer container, process cartridge and electrophotographic image forming appar |
September 5, 2000 |
| A support part attached to a developer container used in an electrophotographic image forming apparatus includes a support portion for supporting one end of an agitating member for agitating developer contained in the developer container, a fitting portion fitted into a through hole |
| 6070027 |
Developing apparatus with auxiliary seal disposed outside of end seal |
May 30, 2000 |
| A developing apparatus including a developing frame, a developing roller disposed at an opening portion of the developing frame and adapted for bearing a developing agent, a first seal member for closing a gap between the developing frame and the developing roller along an entire length |
| 6061535 |
Developing cartridge, for a revolver type developing device, with sensing means for sensing the |
May 9, 2000 |
| A developing cartridge for developing a latent image formed on the photosensitive member, wherein the developing cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus, the developing cartridge includes a cartridge frame; a developing m |
| 6055406 |
Cleaning frame, cleaning device, process cartridge and electrophotographic image forming apparat |
April 25, 2000 |
| A cleaning device for removing toner from an electrophotographic photosensitive member usable with an electrophotographic image forming apparatus includes a cleaning member for removing toner from the electrophotographic photosensitive member; a toner transporting portion having a to |
| 6047150 |
Developing cartridge having cover member |
April 4, 2000 |
| The present invention provides a developing cartridge attachable to and detachable from a main body of an image forming apparatus comprising a cartridge frame, developing device for developing a latent image formed on an image bearing member, and a shutter member supported by the cartrid |
| 6002898 |
Developing cartridge and image forming apparatus |
December 14, 1999 |
| A developing cartridge for developing a latent image formed on the photosensitive member, wherein the developing cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus, the developing cartridge includes a cartridge frame; a developing m |
| 5887227 |
Developing device |
March 23, 1999 |
| A developing device which is capable of being detachably mounted to a rotary unit of an image forming apparatus and which includes a developer carrying member for forming a development region together with an image carrying member and rotating as carrying a developer, a developer con |
