Method and apparatus for determining and updating a photorecepto

Details Method and apparatus for determining and updating a photorecepto Method and apparatus for determining and updating a photorecepto

1993-01-19

1995-12-26

Grimley, A. T.

Photocopying

Contact printing

Light boxes

198807, 226 21, 346134, 346136, G03G 2100

Patent

active

054792410

ABSTRACT:
An electrophotographic printing machine is provided having an endless photoreceptor belt arranged to move in a predetermined path through a plurality of processing stations. The apparatus is used in conjunction with a method for automatically and repeatedly measuring and updating a steering coefficient used in an automatic steering mode. The method includes centering the belt and finding the average "in" belt walk and "in" belt walk rate and the average "out" belt walk and "out" belt walk rate, in order to determine the steering control coefficient. The method allows for a single machine to have its steering coefficient repeatedly updated.

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