摘要:
A waste toner removal device for transporting toner from a photoconductive drum within an image-forming apparatus. The invention includes a waste toner reservoir having outer walls forming an interior chamber for housing toner removed from the photoconductive drum. An opening is positioned within the outer walls into the interior chamber forming an upper chamber section extending above the opening and a lower chamber section extending below the opening. An auger extends along the photoconductive drum and unobstructed into the opening of the waste toner reservoir. The auger includes helical blades extending outward for moving the toner from the photoconductive drum into the waste toner reservoir. A pumping cylinder having a generally cylindrical shape extends around the auger adjacent to the waste toner reservoir. The diameter of the pumping cylinder is approximately equal to the helical blades wherein rotation of the auger creates a pumping action for moving toner into the said upper and lower chamber sections.
摘要:
An input tray of an imaging apparatus having an adjustable reference guide for aligning media sheets in the input tray, the reference guide having a first and second reference point defining an axis, the axis being adjustable by one of pivoting of a reference guide wall or moving a slidable plate mounted over a portion of the reference guide allowing for alignment media sheets with one of an image received by the imaging apparatus or a datum axis on the input tray. The adjustments are made during manufacturing or during a servicing operation of the imaging apparatus.
摘要:
The present application is directed to image forming devices with option trays to introduce media into a media path. One embodiment include the image forming device having a body with a front, back, top, and bottom sides. The sides may form an interior space to contain an imaging unit. The imaging unit may include elements for producing toner images. A media path may extend in a substantially vertical orientation within the interior space. An integrated tray may be positioned at the bottom side of the body and include a first input tray and a manual feed inlet on the front side of the body. Each of first input tray and manual feed inlet form sections of the media path. An option tray may be operatively connected to the bottom side of the body, and may include a second input tray and a multi-purpose feeder. The option tray further lengthens the media path and provides additional avenues to introduce media sheets into the media path.
摘要:
A system and method reduces wear on an image-forming device. The image-forming device includes one or more toner cartridges, each having an associated PC drum and transport member to transport toner images or media. Each of the PC drums maintain contact with a surface of the transport member regardless of whether they are being used to form a toner image. A controller controls the rotation of the PC drums to rotate or not rotate while in contact with the surface of the transport member.
摘要:
Multi-functional image forming devices that may include a base color laser printer comprising a front side, a back side, a top, and a bottom. The color laser printer may further include a media path, a laser printhead, and a plurality of image forming units. A scanning mechanism comprising a scan bed may be mounted on the top of the base color laser printer. In one embodiment, the media path includes a first section positioned within the base color laser printer and a second section that extends between the scanning mechanism and the top of the base color laser printer. In one embodiment, the scanning mechanism is pivotally mounted to the base color laser printer and movable to access the second section of the media path.
摘要:
The present application is directed to methods and devices for determining a media level in an input area within an image forming device. In one embodiment, a support section configured to hold a stack of media sheets is positioned in the image forming device. A pick mechanism is positioned to contact a top-most media sheet of the stack of media sheets in the support section. The pick mechanism may include a pick motor and a pick roller. A sensor roller may be positioned separate from the pick roller and in contact with the top-most media sheet. A controller may determine the media level based on a movement of the sensor roller after the top-most media sheet has moved to a predetermined location.
摘要:
An image forming device includes a body having a top, a bottom, a front and a back. In one embodiment, a plurality of horizontally-aligned imaging units, each comprising a photoconductive member, transfer toner images to an intermediate transfer mechanism located below the plurality of imaging units. A pick mechanism may pick media sheets from a media input tray and feeds the media towards the front of the body. For duplex printing, the media sheets may travel along a duplex path that extends along the front of the body. In one embodiment, an access door at the front of the body pivots between a closed position and an open position. In the open position, a user may gain access to both media paths.
摘要:
An image forming device includes a body having a top, a bottom, a front and a back. In one embodiment, a plurality of horizontally-aligned imaging units, each comprising a photoconductive member, transfer toner images to an intermediate transfer mechanism located below the plurality of imaging units. A pick mechanism may pick media sheets from a media input tray and feeds the media towards the front of the body. For duplex printing, the media sheets may travel along a duplex path that extends along the front of the body. In one embodiment, an access door at the front of the body pivots between a closed position and an open position. In the open position, a user may gain access to both media paths.
摘要:
A developer reference system for a contact development process having machine frame mounted support rollers for the developer roll. Skew between the PC drum and the developer roll is reduced by referencing each to the same support structure. Rolling resistance of the developer roll support rollers is reduced by using thin diameter metal pins for mounting the support rollers.
摘要:
The present application is directed to methods for determining the location and movement of a media sheet within an image forming device. In one embodiment, the media sheet is positioned within an input area of the device. A pick roller is rotated to move the sheet from the input area and into a media path. An encoder roller may be positioned in contact with the sheet to detect the actual movement of the sheet from the input area. A controller may determine the expected amount of movement based on the movement of the pick roller and compare this amount with an actual amount of movement based on the movement of the encoder roller.