Did You Know...
...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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| Number | Title | Issue Date |
| 8190058 | Drum cartridge including detachable spacer member and electrophotographic image forming apparatus A drum cartridge detachably mountable to an electrophotographic image forming apparatus, which apparatus including a main assembly, and a supporting member, swingably mounted to the main assembly, for supporting a plurality of developing devices and for bringing the... | 05/29/2012 |
| 8185013 | Electrophotographic image forming apparatus including a regulating member for limiting cartridge movement An electrophotographic image forming apparatus includes an image forming unit including a transfer member for transferring a developed image formed on an electrophotographic photosensitive drum, and a mounting portion for demountably mounting a cartridge, the image ... | 05/22/2012 |
| 8180250 | Driving device for toner cartridge for use in printing apparatus A driving device for a toner cartridge includes a cartridge body and a driving portion disposed on the cartridge body. A transmission mechanism is disposed in the cartridge body. The driving portion includes a driving motor and a controller. The controller receives ... | 05/15/2012 |
| 8175492 | Developer unit and image forming device A developing unit and image formation device in which a developer carrier is reliably pressed towards and separated from an image carrier is described. A separation and pressing mechanism is provided for separating and pressing the developer carriers of developing c... | 05/08/2012 |
| 8170445 | Process cartridge and electrophotographic image forming apparatus A process cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The cartridge includes an electrophotographic photosensitive drum, a drum unit supporting the drum, a developing unit supporting a developing roller and... | 05/01/2012 |
| 8170444 | Process cartridge and electrophotographic image forming apparatus A process cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus including a positioning portion, a rotatable urging member taking an urging position for urging the cartridge to the positioning portion, and retracted a... | 05/01/2012 |
| 8165494 | Process cartridge having a member with a force receiving end movable to a position away from a cartridge housing A process cartridge is 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 containing the drum, a developing unit containing th... | 04/24/2012 |
| 8165493 | Process cartridge and electrophotographic image forming apparatus A process cartridge that is detachably mountable to a main assembly of an electrophotographic image forming apparatus includes a drum unit supporting an electrophotographic photosensitive member and a developing unit supporting a developing roller. The developing un... | 04/24/2012 |
| 8160478 | Process cartridge and image forming apparatus A process cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The process cartridge includes an electrophotographic photosensitive drum, a drum unit containing the electrophotographic photosensitive drum, a develop... | 04/17/2012 |
| 8160477 | Process cartridge and image forming apparatus A process cartridge and an image forming apparatus in which a charging roller is separated from a photosensitive drum by a predetermined distance and in which the separation between the charging roller and the photosensitive drum is released at the time of use witho... | 04/17/2012 |
| 8160476 | Latent image carrier having pairs of first and second positioning protrusions and image forming apparatus There is disclosed an image forming apparatus including: a latent image carrier; a latent image writing unit; a development unit; a latent image carrier unit having the latent image carrier; a first positioning protrusion disposed on the latent image carrier unit, t... | 04/17/2012 |
| 8145096 | Image forming apparatus having a process cartridge removable from a main body of the apparatus having improved usability The present invention includes two side-plates configured to be opposed to each other and to form a frame of a main body of the apparatus, a cartridge with an image bearing member, a moving member configured to support and move the cartridge, a connecting member con... | 03/27/2012 |
| 8139979 | Process cartridge and electrophotographic image forming apparatus A process cartridge is provided detachably mountable to a main assembly of an electrophotographic image forming apparatus. The process cartridge includes an electrophotographic photosensitive drum, a frame for supporting the electrophotographic photosensitive drum, ... | 03/20/2012 |
| 8135304 | Process cartridge having regulating portions and an inclineable coupling member A process cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus, which includes a rotating force applying portion. The cartridge includes an electrophotographic photosensitive drum, a developing roller, a first frame ... | 03/13/2012 |
| 8135305 | Image forming apparatus An image forming apparatus detachably mounts a cartridge and forms an image on a recording material. The apparatus includes a cartridge positioning portion, a movable member movable between a first position for positioning the cartridge to the positioning portion wh... | 03/13/2012 |
| 8126357 | Process cartridge with sheet member contacting photosensitive member A process cartridge is configured to perform a contact and separation operation between a developing roller and a photosensitive drum. The process cartridge is provided with a toner scattering prevention sheet. The process cartridge includes a container a part of wh... | 02/28/2012 |
| 8121516 | Processing cartridge having a retractable handle A processing cartridge includes at least a photosensitive drum, a developing roller, and a casing containing the photosensitive drum and the developing roller. The photosensitive drum is fixed to the casing to form an electrostatic latent image, and the developing r... | 02/21/2012 |
| 8121518 | Combination in which toner cartridge is removably installed in developing cartridge, which is removably installed in photoconductor cartridge An image forming apparatus is provided which can be switched between states in which a developing roller is attached to an image carrier body by applying a pressing force to a developing cartridge and a state in which the developing roller can be released from attac... | 02/21/2012 |
| 8121519 | Process cartridge having cartridge positioning portion and image forming apparatus mounting said process cartridge A process cartridge is provided detachably mountable to a main assembly of an electrophotographic image forming apparatus. The process cartridge includes an electrophotographic photosensitive drum and a process device actable on the drum. The process cartridge also ... | 02/21/2012 |
| 8121520 | Photosensitive member cartridge A photosensitive member cartridge for use with an image-forming apparatus includes a photosensitive drum and a cartridge case comprising an upper wall, a bottom wall, a right side wall, and a left side wall. An outer surface of the upper wall faces upwards when the ... | 02/21/2012 |
| 8121517 | Process cartridge, electrophotographic image forming apparatus and electrographic photosensitive drum unit A process cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus including a driving shaft having a rotational force applying portion by moving in a direction substantially perpendicular to an axis of the driving shaft... | 02/21/2012 |
| 8116661 | Process cartridge with a coupling member and a retaining portion for the coupling member A process cartridge is provided that is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The cartridge includes a photosensitive drum and a developing roller. A coupling member is provided adjacent to one axial end of the de... | 02/14/2012 |
| 8116660 | Image forming apparatus An image forming apparatus for forming an image on a recording material includes a cartridge, a main assembly including a positioner positioning the cartridge and an urger urging the cartridge to the positioner, a mover supporting the cartridge and movable between a... | 02/14/2012 |
| 8099018 | Pressing mechanism for a developing cartridge An image forming apparatus includes a main body; a process unit configured to be attached to and removed from the main body, the process unit being configured to integrally hold a plurality of image carriers arranged in a first direction; a plurality of developing c... | 01/17/2012 |
| 8095035 | Developing device, process unit, and image forming apparatus, with supporting members, grooves, and supported developing roller A developing device includes a main body that is arranged between a pair of supporting members and includes a developing roller. Both end portions of the developing roller are supported by the supporting members in a first direction in which the developing roller is... | 01/10/2012 |
| 8090292 | Process cartridge and electrophotographic image forming apparatus A process cartridge is provided that is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The process cartridge includes an electrophotographic photosensitive drum and a developing unit. The process cartridge further includes... | 01/03/2012 |
| 8086136 | Photoreceptor unit and image forming apparatus A photoreceptor unit is inserted into an image forming apparatus in the predetermined insertion direction, and includes a photoreceptor, a light-shielding sheet covering a part of the photoreceptor on the front side in the insertion direction; a rigid cover made of ... | 12/27/2011 |
| 8086135 | Developing apparatus, process cartridge and electrophotographic image forming apparatus with movable developing roller shaft coupling member A process cartridge is detachably mountable to a main assembly of the electrophotographic image forming apparatus. The main assembly includes first and second transmitters, a cartridge positioner, a movable member, and a lock. The cartridge includes a photosensitive... | 12/27/2011 |
| 8086137 | Image forming apparatus having a removable photosensitive member unit An image forming apparatus can include a body casing and a photosensitive member unit configured to be inserted into and withdrawn from the body casing. The photosensitive member unit can be moved between a first position where the photosensitive member unit is stor... | 12/27/2011 |
| 8081900 | Developing apparatus and image forming apparatus having the same A developing apparatus. The developing apparatus includes a mainframe to hold a photosensitive medium and includes an opened top surface and a bottom surface with a photosensitive medium opening through which some part of the photosensitive medium is exposed, the ma... | 12/20/2011 |
| 8081901 | Xerographic marking module useful in a xerographic color marking system This invention provides a xerographic marking module that has a built-in lifting mechanism that is useful in installing a new module in a xerographic marking system. The lifting mechanism forms the bottom portion of the marking module and comprises an upper cradle t... | 12/20/2011 |
| 8073360 | Color electrophotographic image forming apparatus A color electrophotographic image forming apparatus having an apparatus main body to which a plurality of cartridges are detachably mounted adjacently in one direction for forming a color image on a recording medium, wherein each of the plurality of cartridges has a... | 12/06/2011 |
| 8068763 | Tandem type photosensitive unit and image forming apparatus A tandem type photosensitive unit includes a plurality of drum retaining units arrayed in line in an arraying direction, and a pair of side plates arranged on both sides of the drum retaining units in an axial direction perpendicular to the arraying direction and co... | 11/29/2011 |
| 8059989 | Color electrophotographic image forming apparatus with member supporting a plurality of cartridges A color electrophotographic image forming apparatus is disclosed. The apparatus includes a cartridge supporting member supporting a plurality of cartridges and moving between a position inside a main body of the apparatus and a mounting and detaching position for mo... | 11/15/2011 |
| 8059988 | Process cartridge and electrophotographic image forming apparatus A process cartridge is detachably mountable to a main assembly of an electrophotographic image forming apparatus. The cartridge includes an electrophotographic photosensitive drum, a drum unit supporting the drum, a developing unit supporting a developing roller and... | 11/15/2011 |
| 8055153 | Image forming apparatus and process cartridge An image forming apparatus includes: an electrophotographic photoreceptor including a conductive support and a photosensitive layer including an outermost surface layer capable of transporting a charge, the layer being farthest from the conductive support and contai... | 11/08/2011 |
| 8055154 | Protection cover, and process cartridge and image forming apparatus using the same A protection cover includes a cover base that covers and protects an external exposure portion of a photosensitive member and that comes into contact with an image forming apparatus housing body to movably guide a process cartridge; an extrusion member that is dispo... | 11/08/2011 |
| 8045884 | Imaging cartridge having a hopper supported by a wastebin An imaging cartridge contains a wastebin and a hopper connected to the wastebin. A flat mounting surface on the wastebin receives a circuit board. A microswitch actuating tab is formed on the body of the imaging cartridge. A hopper is connected to the wastebin in a ... | 10/25/2011 |
| 8041258 | Process cartridge and image forming apparatus A process cartridge is configured to be mounted in an apparatus main body along a predetermined mounting direction. The process cartridge includes: a photosensitive drum; a drum drive input member into which a driving force for rotating the photosensitive drum is in... | 10/18/2011 |
| 8036570 | Process cartridge A process cartridge includes a photosensitive member, a charger, which charges the photo sensitive member, and a process frame, which supports the photo sensitive member and the charger. The charger includes a charged wire, a grid that is interposed between the char... | 10/11/2011 |
