Copy apparatus having a non-integrally sized transfer device

Details Copy apparatus having a non-integrally sized transfer device Copy apparatus having a non-integrally sized transfer device

1989-02-22

1990-02-06

Pendegrass, Joan H.

Photocopying

Contact printing

Light boxes

355317, 355327, G03G 1500, G03G 1501

Patent

active

048991961

ABSTRACT:
An electrophotographic copier-printer having a continuous intermediate transfer roller. Several color component images are transferred in registration to the intermediate roller and then the composite image is transferred to a hard copy material such as a paper sheet. The images transferred to the intermediate roller come from specific locations on a seamed photoconductive belt. The roller circumference is not an integral fraction of the belt length, thereby allowing the belt position to precess along the roller during component image transfers. The seam of the belt is confined to a precess region between image areas on the roller. This precessing allows the roller to be varied in size by an amount dependent upon the amount of allowed precessing and the number of component images transferred.

REFERENCES:
patent: 4110033 (1978-08-01), Ophey
patent: 4396275 (1983-08-01), Oka et al.
patent: 4556311 (1985-12-01), Tagoka

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