Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: A toner cartridge for an electrophotographic image forming device according to one example embodiment includes a housing having a reservoir for storing toner. An outlet port is positioned on the housing for transferring toner out of the toner cartridge. A venting system includes a first vent positioned to introduce air from outside the housing into the reservoir and a second vent positioned to introduce air received at the outlet port into the reservoir. The venting system maintains an air pressure in the reservoir at the greater of a pressure of the air from outside the housing and the air received at the outlet port.

Abstract: An assembly in an imaging apparatus including 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, and 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.

Abstract: 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.

Abstract: A removable unit for an electrophotographic image forming device according to one example embodiment includes a housing having an inner volume forming a toner reservoir and a channel for accumulating toner. The removable unit further includes an auger for advancing toner within the channel. The auger has a rotational axis and a flight. An agitator is pivotally mounted within the toner reservoir. The agitator has at least one agitating member extending near the auger and a cam surface operatively connected to the at least one agitating member and positioned to engage the auger. When the auger rotates, the flight of the auger engages the cam surface causing pivotal movement of the agitator to move the at least one agitating member to agitate toner accumulated near the auger.

Abstract: 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.

Abstract: An imaging unit of an imaging apparatus is provided including a developer unit for developing a toner and a cooling system. The cooling system includes an air distribution duct and a connecting segment. The connecting segment includes an air conduit attached to the air distribution duct and an air entry port disposed on the air conduit for connecting to the air supply line during installation of the imaging unit. A contacting surface of the air entry port is angled inwardly in two directions, relative to the air conduit, that are orthogonal to each other.

Abstract: A removable unit for an electrophotographic image forming device according to one example embodiment includes a housing having an inner volume forming a toner reservoir and a channel for accumulating toner. An auger advances toner within the channel and has a rotational axis and a flight. An agitator is mounted on an inner surface of the housing and is positioned to extend toward the auger. The agitator has a first segment and a second distal segment connected to the first segment. When the auger rotates, the flight of the auger engages the agitator causing movement of the second distal segment to push toner accumulated in the channel into the auger.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: 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.