Copy sheet de-registration device

Details Copy sheet de-registration device Copy sheet de-registration device

1988-12-22

1991-09-17

Pendegrass, Joan H.

Photocopying

Contact printing

Light boxes

271251, G03G 1500, B65H 916

Patent

active

050499483

ABSTRACT:
A copier/printer apparatus capable of duplex copying includes a roller assembly that shifts a sheet laterally while maintaining longitudinal movement of the sheet. A shaft that supports drive rolls that form nips with mating idler rolls has pins that extend into helical slots within the drive rolls such that the assembly rolls in a normal movement (axially) in one mode, while being able to have axial and lateral movement in another mode.

REFERENCES:
patent: 4456238 (1984-06-01), Mizuma
patent: 4480825 (1984-11-01), Landa
patent: 4678178 (1987-07-01), Akiyama et al.
patent: 4712786 (1987-12-01), Looney
patent: 4799084 (1989-01-01), Koike et al.
patent: 4953846 (1990-09-01), Azeta et al.

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