A PROCESS CARTRIDGE FOR AN IMAGE FORMING APPARATUS
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United States of America Patent
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N/A
Issued Date -
Jul 27, 2006
app pub date -
Jan 27, 2005
filing date -
Jan 27, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A bearing is provided at each longitudinal end of the cartridge frame. The bearing has mounting apertures for mounting the developing roller and regulating blade, and for maintaining a predetermined spacing between the developing roller and the regulating blade. The bearing is moveable relative to the cartridge frame to allow relative movement between the developing roller and photosensitive drum. A coil spring is also provided to bias the bearing toward the drum to create the required gap between the developing roller and drum. The gap is maintained by spacers mounted on the longitudinal ends of the developing roller. In addition, an abutting portion is provided on the bearing and is engageable with a stop portion on the cartridge frame to limit movement of the bearing toward the operative position photosensitive member. The abutting and stop portions serve to limit the movement of the bearing even when the photosensitive drum is not installed in the cartridge, for example, during assembly and disassembly of the cartridge.
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