摘要:
A fuser module of an image forming device including a pivot able end cap and a movable entry guide attached therein. The movable entry guide moves according to the pivoting end cap to ensure reduced positional variability within the fuser module. The pivoting end cap also has a wheel to axle ratio of about 18:1 to ensure reduced force variability within the fuser module.
摘要:
A fuser module of an image forming device including a pivotable end cap and a movable entry guide attached therein. The movable entry guide moves according to the pivoting end cap to ensure reduced positional variability within the fuser module. The pivoting end cap also has a wheel to axle ratio of about 18:1 to ensure reduced force variability within the fuser module.
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.
摘要:
Toner cartridge (1) has a unitary assembly forming the handle (3a, 3b), the cover (25), side walls (33, 245) and the cleaner chamber (27) and hold the photoconductor drum (43). Each of the side walls has a U-shaped housing (35, 247) which loosely receives a pin (37a, 37b) from the side of the hopper (61). The hopper is part of a unitary assembly holding the toner adder roller (45) and the developer roller (43). Second pins (131a, 131b) from the sides of the hopper carry springs which pull the two assemblies together to press the developer roller against the photoconductor. The hopper also has flat ledges (161a, 133a) on each side for movement on roller in the printer. This further permits the cartridge to have central locating elements (29a, 29b), wing-like guides (9a, 9b) for insertion, links (13a, 13b) to open a lower shutter (7), and unobstructed ends of photoconductor shaft (47) for positively locating on that shaft.
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:
A method and device for controlling toner transfer during the formation of a toner image within an image forming device is described herein. One exemplary image forming device includes a toner reservoir that stores toner of a first color, a developer member that receives toner from the toner reservoir, a photoconductive member proximate the developer member that receives toner from the developer member, and a driver. While rotating the photoconductive member, the driver selectively rotates the developer member based on a color content of the image. For example, the driver does not rotate the developer member while rotating the photoconductive member when the toner image being formed lacks the first color. Alternatively, the driver lows the rotational speed of the developer member while rotating the photoconductive member when the toner image being formed lacks the first color.
摘要:
A method and device for controlling toner transfer during the formation of a toner image within an image forming device is described herein. One exemplary image forming device includes a toner reservoir that stores toner of a first color, a developer member that receives toner from the toner reservoir, a photoconductive member proximate the developer member that receives toner from the developer member, and a driver. While rotating the photoconductive member, the driver selectively rotates the developer member based on a color content of the image. For example, the driver does not rotate the developer member while rotating the photoconductive member when the toner image being formed lacks the first color. Alternatively, the driver lows the rotational speed of the developer member while rotating the photoconductive member when the toner image being formed lacks the first color.
摘要:
The temperature of a heated roller (1) is monitored by a heat sensor (19) which rests on metal rectangle (25) on polyimide strip (5). The top end of the strip is attached directly to the frame (3). the bottom end of the strip has a hole (7), which receives an arm (9a) of pivoted member (9). A coil spring (13) pivots member 9 to cause arm 9a to pull the strip into contact with the heated roller. Because of the wide contact and low force between the strip and the roller, wear is reduced and smooth operation is realized.
摘要:
A toner cartridge (1) has wing-like guides (9a, 9b) on opposite sides, the guides being curved to follow a curved guide track in a printer in which the cartridge is installed. The cartridge may be readily grasped by handles (3a, 3b) and inserted in the guide tracks of the printer near the top and front and then readily directed down and into the rear area of the printer. The guides are thin at their initial location of entry into the printer for easy insertion and increase to larger thickness regions (9aa, 9bb) to better guide the cartridge. The guides are a part of a unitarily molded cover assembly which includes the side walls (33, 241, 245).
摘要:
A toner cartridge (1) contains a photoconductive drum (43) having a central shaft (47). The shaft extends outward from the sides of the cartridge so that it can be lowered on a V-shaped locator (301) in the printer. An assembly of a hopper (61), toner adder roller (45) and developer roller (43) is attached to an assembly carrying the photoconductive drum through springs (132a, 132b). The hopper assembly has center locating surfaces (29a, 29b) to receive a downward pressing member from the printer and flat ledges (161a, 133a) to contact rollers in the printer, which permits adjustment of the contact between the drum and the developer roller while positively locating the drum. The cover assembly also has flat locating surfaces (449, 451) near the hopper to rest on the printer frame.