Patent application number | Description | Published |
20100290802 | Apparatus for Providing Electrical Contact Between a Power Supply and a Photoconductive Drum in an Image Forming Device - In an image forming device an apparatus is provided that supplies a continuous flow of an electrical charge between a photoconductive drum and a power supply. In one embodiment, an electrically conductive member receives a shaft of the photoconductive drum. An electrically conductive cap disposed on a first side of the electrically conductive member, aligned with an aperture of the electrically conductive member, and capable of being electrically coupled with the shaft via the electrically conductive member. There is also an electrically conductive resilient member having a leading end and a trailing end electrically couple with the electrically conductive member and the shaft in a manner that the leading end is disposed on the first side of the electrically conductive member and the trailing end is disposed on the second side of the electrically conductive member with at least a portion of the trailing end extending across the aperture of the electrically conductive member. | 11-18-2010 |
20130170862 | TONER CARTRIDGE WITH PRESSURE EQUALIZATION SYSTEM - A toner cartridge having a pressure equalization system for equalizing a pressure differential between a toner reservoir in the toner cartridge and a toner sump developer unit containing ingested air utilizing a ducted shutter that opens and closes an exit port on the housing of the toner cartridge in combination with a passageway in fluid communication with the ducted shutter and the toner reservoir wherein, when the toner cartridge is mated with a developer unit of the imaging apparatus and the shutter is in the open position, exiting toner leaves the cartridge through the exit port and enters the developer unit while air entrained within the developer unit enters the toner reservoir via the exit port, the duct and the passageway equalizing pressure between the toner cartridge and the to developer unit. | 07-04-2013 |
20130170863 | IMAGING APPARATUS ASSEMBLY WITH PRESSURE EQUALIZATION - An assembly in an imaging apparatus comprising a developer unit and a toner cartridge having a pressure equalization system for equalizing a pressure differential between a toner reservoir in the toner cartridge and a toner sump of a developer unit containing ingested air. A ducted shutter that opens and closes an exit port on the housing of the toner cartridge in combination with a passageway in fluid communication with a duct in the shutter and the toner reservoir forms an airway wherein, when the toner cartridge is mated with a developer unit of the imaging apparatus and the shutter is in the open position, exiting toner leaves the cartridge through the exit port and enters the developer unit while air entrained within the developer unit enters the toner reservoir via the exit port and airway equalizing pressure between the toner cartridge and the developer unit. | 07-04-2013 |
20130170865 | TONER CARTRIDGE HAVING A SHUTTER LOCK MECHANISM - A toner cartridge according to one example embodiment includes a housing having a reservoir for containing toner and an exit port in fluid communication therewith. A movable shutter is positioned at the exit port. A linkage is operatively connected to the shutter to open the shutter upon being actuated by a first engagement feature in the image forming device. The linkage includes a first linkage member positioned to receive the first engagement feature and a second linkage member connected to the shutter. An interlock is operatively engaged with the linkage and biased toward a locked position preventing the second linkage member from opening the shutter but permitting the first linkage member to move relative to the second linkage member. The interlock is movable to an unlocked position upon being actuated by a second engagement feature in the image forming device that permits the second linkage member to open the shutter. | 07-04-2013 |
20130170866 | TONER CARTRIDGE HAVING A SHUTTER LOCK MECHANISM - A toner cartridge according to one example embodiment includes a housing having a reservoir for containing toner and an exit port in fluid communication therewith. A movable shutter is positioned at the exit port. A linkage is operatively connected to the shutter to open the shutter upon being actuated by a first engagement feature in the image forming device. The linkage includes a first linkage member positioned to receive the first engagement feature and a second linkage member connected to the shutter. An interlock is operatively engaged with the linkage and biased toward a locked position preventing the second linkage member from opening the shutter but permitting the first linkage member to move relative to the second linkage member. The interlock is movable to an unlocked position upon being actuated by a second engagement feature in the image forming device that permits the second linkage member to open the shutter. | 07-04-2013 |
20130170867 | TONER CARTRIDGES HAVING POSITIONAL CONTROL FEATURES - A toner cartridge for use in an image forming device according to one example embodiment includes a housing having a reservoir for containing toner therein. The housing has an exit port in fluid communication with the reservoir to permit toner from the reservoir to pass out of the housing. A first leg and a second leg each project from a bottom portion of the housing to limit the side-to-side travel of the toner cartridge during insertion into the image forming device. Wing guides are positioned on opposite side surfaces of the housing. A stop extends from each wing guide to limit the forward travel of the toner cartridge in the image forming device. Rounded projections extending from the bottom surfaces of the wing guides define contact points to control the vertical position of the toner cartridge in the image forming device. | 07-04-2013 |
20130170868 | TONER CARTRIDGE FOR USE IN AN IMAGE FORMING DEVICE - A toner cartridge according to one example embodiment includes a housing that defines a reservoir for containing toner. An exit port in fluid communication with the reservoir faces downward on the front of the housing near a first side. A shutter positioned at the exit port is movable between an open position and a closed position. A toner delivery system for transferring toner from the reservoir includes a main interface gear exposed on the front of the housing near the top of the second side. A rearward facing opening is positioned near the first side of the housing for receiving a first engagement feature in an image forming device for opening and closing the shutter. A forward facing slot is positioned near the first side of the housing for receiving a second engagement feature in the image forming device for locking and unlocking the shutter. | 07-04-2013 |
20130170873 | TONER DELIVERY SYSTEM FOR A SHAKE-FREE TONER CARTRIDGE - A toner delivery system for a shake-free toner cartridge comprises a toner paddle assembly having a plurality of scrapers. A main scraper scrapes toner adhering to interior surfaces and directs toner from a first region of the toner reservoir into the opening in a first portion of the front of the housing. A secondary scraper positioned adjacent with the main scraper scrapes and directs toner from a second region of the toner reservoir into the first region. A side scraper scrapes toner adhering to interior surfaces of respective side walls of the housing. | 07-04-2013 |
20130170874 | PADDLE ASSEMBLY FOR A SHAKE-FREE TONER CARTRIDGE - A paddle assembly for a shake-free toner cartridge comprises a toner paddle having a plurality of scrapers. When installed in a toner cartridge, a main scraper scrapes toner adhering to interior surfaces and directs toner from a first region of the toner reservoir into the opening in a first portion of the front of the housing. A secondary scraper positioned adjacent with the main scraper scrapes and directs toner from a second region of the toner reservoir into the first region. A side scraper scrapes toner adhering to interior surfaces of respective side walls of the housing. | 07-04-2013 |
20130209141 | Toner Cartridge Having Positional Control Features - A toner cartridge according to one example embodiment includes a housing that has an elongated shape extending from a first side to a second side. The housing defines a reservoir for containing toner therein. An exit port is in fluid communication with the reservoir and faces downward on the front of the housing near the first side. A first leg portion and a second leg portion each projects from the bottom of the housing and extends along a front-to-rear dimension of the housing. The first leg portion has a first outer side spaced inward from the first side of the housing and the second leg portion has a second outer side spaced inward from the second side of the housing. The first outer side and the second outer side are unobstructed to limit the side-to-side travel of the toner cartridge during insertion into the image forming device. | 08-15-2013 |
20130287446 | Shutter Assembly for a Toner Cantainer - A developer unit including a housing having an opening and defining a volume forming a toner chamber. A shutter is disposed on the housing and rotatably mounted relative to the opening thereof. The shutter includes an aperture and is operative to retain toner within the developer unit in a substantially sealed manner when in a closed orientation in which the aperture is not aligned with the opening of the housing, and to allow toner to flow into the toner chamber through the opening of the housing when in an open orientation in which the aperture is aligned with the opening of the housing. A lever is selectively coupled to the shutter and rotationally mounted to the housing such that when the lever is coupled to the shutter, rotation of the lever causes rotation of the shutter between the open and closed orientations, and when the lever is decoupled from the shutter, the lever is rotatable relative to the housing without causing the shutter to rotate. | 10-31-2013 |
20140199097 | Toner Delivery System for a Shake-Free Toner Cartridge - A toner delivery system for a shake-free toner cartridge comprises a toner paddle assembly having a plurality of scrapers. A main scraper scrapes toner adhering to interior surfaces and directs toner from a first region of the toner reservoir into the opening in a first portion of the front of the housing. A secondary scraper positioned adjacent with the main scraper scrapes and directs toner from a second region of the toner reservoir into the first region. A side scraper scrapes toner adhering to interior surfaces of respective side walls of the housing. | 07-17-2014 |
20140255060 | Toner Cartridge Having a Shutter that Includes an Air Duct Therethrough - A toner cartridge for use in an imaging device according to one example embodiment includes a housing having a reservoir enclosed therein for holding a quantity of toner. The housing has an exit port in communication with the reservoir for exiting toner from the toner cartridge. A shutter is mounted on the housing and has a toner path through the shutter. The toner path includes an exit opening. The shutter is moveable between a closed position where the toner path is closed to the exit port preventing toner from exiting the toner cartridge and an open position where the exit opening is open to the exit port allowing toner to exit the toner cartridge. The shutter has an air duct therethrough separated from the toner path. The air duct has a first end in fluid communication with the exit port when the shutter is in the open position. | 09-11-2014 |