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Improved control of photosensitive roller movement

A technology of electrophotography and equipment, which is applied to the equipment of electric recording technology using charge patterns, electric recording technology using charge patterns, and electrography, etc. It can solve the problems of distortion of printed images, loss of precise rotation, detachment, etc. problem, to achieve the effect of uniform operation

Inactive Publication Date: 2004-06-16
LEXMARK INT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The teeth between the feed gear and the drive gear of the photosensitive roller may actually disengage tangentially, resulting in a very noticeable distortion of the printed image
Also, since the pressure on the teeth helps to really flatten surface imperfections, loss of this pressure loses precise rotation and necessarily damages the printed image

Method used

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  • Improved control of photosensitive roller movement
  • Improved control of photosensitive roller movement
  • Improved control of photosensitive roller movement

Examples

Experimental program
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Embodiment Construction

[0018] exist figure 1 The middle figure shows the independent, removable printer box 1 in a perspective view from above and from the rear left (handles 3a and 3b are seen as the front, and the sides with the swinging upper shutter 5 are seen as the upper side).

[0019] For illustrative purposes, figure 1 The upper flap 5 is shown swinging downwards to its open position, while the lower flap 7 is shown swinging backwards and upwards to its open position. In actual operation, these positions are reached through interaction with a printer or other means in which the cassette 1 is housed, as will be explained below.

[0020] In order to facilitate the insertion and guidance of the cover 1 into the printer, the box 1 has a left guide wing 9a and a right guide wing 9b. Except the place near the front where the bottom 9a is enlarged downwards, the guide wings 9a and 9b are all made into relatively large arc-shaped thin planes. Except as described in this particular embodiment, t...

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PUM

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Abstract

A toner cartridge (1) contains a photoconductive drum (49) having a central shaft (47). Gear (145) turns with the drum and has a stud (602). A coil spring (604) is mounted on the stud to form a spring clutch which is unwound by the rotation of the drum during imaging. Alternatively, a flat frictional surface is pressed against the side wall (600b) of the gear. Both contact areas have a light grease. The drag forces provide accurate, smooth operation during imaging.

Description

[0001] This is a continuation of Provisional Patent Application Serial No. 60 / 051041, filed June 27, 1997, having the same title as the present application. [0002] The preferred embodiment of the present invention is incorporated in a toner cartridge described in several U.S. patent applications filed on December 20, 1996, one of which is more specifically directed to a photoconductor roller, Serial No. No. 80 / 770326, entitled "Toner Cartridge Positioned on Photoconductor Shaft." technical field [0003] This invention relates to electrophotographic (electrophotographic) development and, more particularly, to improved control of photosensitive roller movement during the imaging process. Background technique [0004] Prior to 1977, the inventors of the present invention had manufactured and marketed toner cartridges of two different general designs. For larger laser printers, the box contains a pump to meter the toner disclosed in U.S. Pat. The same as disclosed in US Pat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03G21/00G03G15/00G03G15/08
CPCG03G15/0872G03G15/0865G03G15/0832G03G15/0855G03G15/08
Inventor 史蒂芬·A·柯里保罗·D·霍拉尔大卫·L·梅里菲尔德丹尼尔·G·姆莱内克詹姆斯·J·莫洛伊哈拉尔德·波蒂格戈里高利·L·里姆小理查德·A·西曼
Owner LEXMARK INT INC