Multiple pitch color registration system

Details Multiple pitch color registration system Multiple pitch color registration system

1991-08-26

1993-04-06

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355275, 355317, 430 44, G03G 1501

Patent

active

052007910

ABSTRACT:
A multiple pitch color registration system is disclosed for registering two images that are not precisely placed on a photoreceptor in an electrophotographic printing machine. The registration system is able to run asynchronously for a period of time and then to resynchronize in two different pitch modes. A two roll transfer loop for transferring the plurality of colors is phase locked to the photoreceptor position so that the two roll transfer loop follows the photoreceptor motion errors for maintaining accurate registration.

REFERENCES:
patent: 4578331 (1986-03-01), Ikeda et al.
patent: 4849795 (1989-07-01), Spehrley, Jr. et al.
patent: 4935788 (1990-06-01), Fantuzzo et al.
patent: 4990969 (1991-02-01), Rapkin
patent: 5014094 (1991-05-01), Amitani et al.

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