Browse Prior Art Database

Original Publication Date: 1983-Apr-30
Included in the Prior Art Database: 2004-Apr-04

Publishing Venue

Xerox Disclosure Journal


In the figure, a manually operated xerographic copier is schematically illustrated wherein a drum 10 may be handcranked clockwise by hand crank 12 which also provides positive drive to the machine through drive belt 14 for the document transport belt 16 which is also mounted on drive shaft 17 and the copy sheet transport belt 18 which is driven by contact with drive belt 14. The operator feeds a document to be copied into gripper 20 and a copy sheet into paper gripper 22. The paper transport length to the transfer device is equal to the document scan transport length which is equal to the circumference of the photoreceptor drum 10. The photoreceptor drum is uniformly charged by charging device 24 such as a corotron, and as the document, copy sheet and drum move at the same peripheral speed, the document is transported past the exposure apparatus 28 which may include fiber optics or a Selfoc lens and an illuminating lamp. The drum is sequentially exposed to light and the background area is discharged. The charged portions are developed at developer station 30 which preferably includes a magnetic brush developer assembly. The lead edge of the image on the drum reaches the transfer device 32, which may also be a corotron, simultaneously with