| Patent Number |
Title Of Patent |
Date Issued |
| D596663 |
Printer cartridge |
July 21, 2009 |
|
| D588632 |
Tray for printer cartridges |
March 17, 2009 |
|
| D588190 |
Printer cartridge |
March 10, 2009 |
|
| D588189 |
Tray for printer cartridges |
March 10, 2009 |
|
| D579970 |
Tray for printer cartridges |
November 4, 2008 |
|
| D579484 |
Printer cartridge |
October 28, 2008 |
|
| 7613414 |
Developing cartridge, process carriage, and image forming apparatus |
November 3, 2009 |
| A developing cartridge that includes: a developing roller having a developing roller gear and a driving force transmitting unit; and an electrode member for applying a bias to a developing roller shaft. A direction of a driving force applied to the developing roller gear at an engage |
| 7606510 |
Image forming device including a cleaning device |
October 20, 2009 |
| A laser printer is provided which includes a conveying belt, which is configured for circulating movement and which indirectly supports developer over a recording medium. Furthermore, a cleaning roller which contacts the outer surface of the conveying belt and an opposing roller whic |
| 7603056 |
Image forming device |
October 13, 2009 |
| An image forming device includes: a main unit case; a process unit; a belt unit; a belt; a belt cleaning unit; a storing unit; and a duct unit. The process unit is configured to be attached to and detached from the main unit case. The belt unit is configured to displace between an oppose |
| 7596327 |
Developing cartridge and image forming apparatus |
September 29, 2009 |
| A developing cartridge that includes: a developer container that contains a developer; a developer carrier that carries the developer; an agitation member that includes a rotary shaft, agitates the developer in the developer container and supplies the developer to the developer carrier; |
| 7565093 |
Image-forming device having cartridge-accommodating section |
July 21, 2009 |
| A first cartridge and a second cartridge are detachably mounted in a housing of the image-forming device. The first cartridge is formed thicker than the second cartridge in a thickness direction orthogonal to a mounting direction of the first and second cartridges. The housing has a |
| 7565090 |
Method of refilling developer cartridge, developer cartridge, and image forming apparatus |
July 21, 2009 |
| In a method of refilling a developer cartridge, a container that contains an original developer manufactured by a polymerization method is prepared. A new developer manufactured by the polymerization method is refilled in the container without cleaning an inside of the container. The |
| 7555245 |
Image forming apparatus with cam members |
June 30, 2009 |
| An image forming apparatus includes a detaching and pressing mechanism for releasing developing rollers of developer cartridges mounted in a drum unit from photosensitive drums and pressing the developing rollers on the photosensitive drums. The detaching and pressing mechanism includes |
| 7555235 |
Image forming apparatus enabling user to directly clean discharge wire |
June 30, 2009 |
| A charger includes a frame and a cover member, together defining an internal space. A discharge wire for producing a discharge for a photosensitive drum is disposed within the internal space. A cleaner for cleaning the discharge wire is also disposed within the internal space. When t |
| 7529502 |
Process cartridge in image-forming device |
May 5, 2009 |
| A cartridge that can be detachably mounted in an image-forming device includes: a first wall; a second wall opposing the first wall with a gap formed therebetween, the first wall and the second wall defining therebetween a developer-accommodating section that accommodates a developer |
| 7526232 |
Image forming apparatus and drive unit of image forming unit |
April 28, 2009 |
| A swinging gear is constructed to be swingable in accordance with the rotational direction of a main gear. A first gear train is arranged to drive a black developing unit by meshing with the swinging gear when the main gear is rotated in a first direction. A second gear train is arra |
| 7526227 |
Image forming apparatus and cartridge |
April 28, 2009 |
| An image forming apparatus includes a belt unit, a plurality of photosensitive drums, a cartridge, a casing, a cartridge holding unit and a first guide unit. The looped belt has a first surface outside of the loop, and is stretched to form a substantially straight portion on the loop |
| 7512363 |
Providing electrical potential to a rotatable developer carrier in an image forming apparatus |
March 31, 2009 |
| Developing cartridges for use in image forming apparatuses having an image carrier, include: (a) a case; (b) a developer carrier supported by the case (for holding developer thereon); and (c) a conductive member engaged with or provided on the case and being electrically connected to the |
| 7505709 |
Image forming apparatus, process unit, and developing cartridge |
March 17, 2009 |
| When the drum axis of a photosensitive drum cartridge is engaged with an image forming apparatus, the developing roller axis of a developing cartridge is engaged with an engagement provided in the photosensitive drum cartridge. Then, after this, a positioning component of the develop |
| 7496301 |
Image forming device and cartridge with developer detection |
February 24, 2009 |
| An image-forming device has a developer-accommodating section and a residual toner detecting unit. The developer-accommodating section accommodates a developer. The developer-accommodating section defines a plurality of detection light transmitting points through which a detection li |
| 7447467 |
Image-forming device with holding unit having multiple positions |
November 4, 2008 |
| An image-forming device includes: a main body; at least one photosensitive member; a plurality of developing units; a transferring unit; a first holding unit; and a guiding unit. The photosensitive member has a support shaft. Each developing unit has a developer-accommodating section tha |
| 7444103 |
Image-forming device and developing unit used therein |
October 28, 2008 |
| In an image-forming device including an image-carrying member, a developer-carrying member, and a casing having an inner space in which developer is accommodated and the developer-carrying member is supported, both a pushing force and a separating force are not applied to the casing |
| 7415228 |
Image-forming device having a drum drive gear for engaging a drum gear |
August 19, 2008 |
| An image-forming device includes photosensitive drums, a drum gear, a drum gear rotating body, a drum drive gear, and a drum drive gear rotating body. The drum gear is provided on an axial end of each photosensitive drum. The drum gear rotating body is provided adjacent to the drum gear |
| 7406273 |
Image forming apparatus into which replaceable units are detachably attached |
July 29, 2008 |
| A replaceable unit that is removably coupled to a storage portion of a main body provided in an image forming apparatus, the replaceable unit having a first picture split provided on the replaceable unit that forms a finished picture with a second picture split provided on the main body |
| 7362986 |
Process cartridge in image-forming device |
April 22, 2008 |
| A cartridge that can be detachably mounted in an image-forming device includes: a first wall; a second wall opposing the first wall with a gap formed therebetween, the first wall and the second wall defining therebetween a developer-accommodating section that accommodates a developer |
| 7194219 |
Image-forming device having image-scanning unit |
March 20, 2007 |
| A multifunction device includes a scanner for scanning an image from an original document, and a printer body provided with an image-forming unit for forming an image on a paper based on image data read by the scanner. The scanner is provided on the front side of the main printer body, a |
| 7177569 |
Image forming apparatus |
February 13, 2007 |
| An image forming apparatus includes: an endless belt; a plurality of image carriers; a plurality of charging units; an exposing unit; and a plurality of developing units configured to develop an electrostatic latent image on each of the image carrier with a developer of different col |
| 7161612 |
Image forming apparatus, process cartridge and exposure scanning unit |
January 9, 2007 |
| In a color laser printer, each scanner unit as an exposure scanning unit is positioned on a lateral side of a developing unit, so as not to face the surface of a photoconductor drum as a photoconductor. The scanner unit emits a laser light scanned in a direction perpendicular to a ro |
| 7058349 |
Development unit having a layer-thickness, regulator with contact portion, and method of manufac |
June 6, 2006 |
| A development unit including: (a) a developer storage storing a developer; (b) a developer receiver disposed in an end portion of the developer storage and having a depository surface on which the developer is to be deposited; and (c) a regulator including a contact portion held in p |
| 6980752 |
Developing cartridge |
December 27, 2005 |
| A developing cartridge has a housing that accommodates developer therein. Rotatably mounted in the housing is a developing roller. The housing has side seals provided at each end of the developing roller that oppose the circumferential ends of the developing roller. The developing roller |
| 6937831 |
Sealing system for a developing cartridge |
August 30, 2005 |
| Even with an extend use of a laser printer, toner leakage can be prevented. A side seal disposed at each end of a developing roller includes a sealing member that makes sliding contact with a surface of the developing roller and a sponge seal that supports the sealing member. The sponge |
| 6901228 |
Developing agent container including a sealing element for preventing developing agent from leak |
May 31, 2005 |
| A developing agent container includes a housing having a feeding element that feeds a developing agent and a sealing element made of felt of polyester-base fibers to prevent toner leakage from both ends of a developing roller with respect to an axial direction when mounted in positio |
| 6785485 |
Image forming device with filming cleaning function |
August 31, 2004 |
| An image forming device develops a static-electric latent image into a visible image using non-magnetic, single component developer. The image forming device includes a photosensitive drum and a developing roller that are disposed in confrontation with each other. The photosensitive drum |
| 6496669 |
Developing agent carrier having a sealing mechanism at each end of a developing roller |
December 17, 2002 |
| In order to prevent toner leaks from both ends of a developing roller disposed within a case accommodating polymerized toner, side seals each having a TEFLON.RTM. (polytetrafluoroethylene) felt member on its surface are provided to make sliding contact with a surface of the developing |
| 6496668 |
Image developing device with sealing members for preventing toner leakage |
December 17, 2002 |
| A developing device for developing a latent static-electric image into a visible image from developer. Various members for preventing toner leaks are attached to the developing case. A lower-edge leak prevention member is attached below the developer bearing body. End leak prevention mem |
| 6385414 |
Contaminant preventing structure for image forming apparatus and process cartridge |
May 7, 2002 |
| A device for preventing contamination of a print sheet and the reduction in the effectiveness of a scorotron type charger by free toner and paper particles. The device includes a paper dust eliminator extending the length of a photosensitive member and a wiping mechanism at each end of |
| 6356723 |
Developing device, process cartridge and image forming apparatus |
March 12, 2002 |
| In order to prevent toner leaks from both sides of a developing roller disposed within a case accommodating polymerized toner, side seals each having a TEFLON.RTM. (polytetrafluoroethylene) felt member on its surface are provided to make sliding contact with a surface of the developing |
| 6336014 |
Image developing device with sealing members for preventing toner leakage |
January 1, 2002 |
| A layer thickness regulating blade 64 has a plate spring 64b and a pressing number 64a fixed thereto. The plate spring 64b is formed longer than the pressing member 64a so that both ends of the plate spring 64b are exposed. A front surface resilient foam seal 112 made from sponge is atta |
| 6321050 |
Image developing device with sealing members for preventing toner leakage |
November 20, 2001 |
| A developing device for developing a latent static-electric image into a visible image from developer. Various members for preventing toner leaks are attached to the developing case. A lower-edge leak prevention member is attached below the developer bearing body. End leak prevention mem |
| 6196672 |
Hot-melt type ink jet printer having heating and cooling arrangement |
March 6, 2001 |
| A hot-melt type ink jet printer includes a nozzle head for ejecting a hot-melt type ink onto a sheet. The printer has a sheet feed passage defined by, in order from an upstream side in a sheet feeding direction, a sheet supply roller, a preheat platen, a sheet feed roller, a main platen, |
