| 摘要 |
A cassette for an electrophotographic imaging machine contains a photoreceptor, such as a drum or endless belt photoreceptor and optionally one or more process means, such as a charge corotron, a development device, a transfer corotron and a cleaning device. The photoreceptor belt is loosely held in an open loop, for example by means of belt retaining strips, within a cassette when the cassette is out of the main machine. When the cassette is inserted into a suitably shaped aperture in the main machine, the photoreceptor engages over a plurality of support rollers. At least one of the rollers is movable so as to space it from another roller, thereby tensioning the photoreceptor belt and accurately locating the belt within the main machine. One of the support rollers may also be a drive roller for the belt.
|
