Sheet conveyer having a sheet aligner

Details Sheet conveyer having a sheet aligner Sheet conveyer having a sheet aligner

1991-01-16

1992-11-10

Pendegrass, Joan H.

Photocopying

Contact printing

Light boxes

355317, 355319, 271 31, 271251, G03G 1500

Patent

active

051628570

ABSTRACT:
A sheet conveyer having a sheet registration device for an image forming apparatus having a sheet path for guiding a sheet having an image recorded on one side thereof back to an image forming unit for recording another image on the other side, comprises a mechanism for switching the sheet having the image recorded on one side thereof back to the sheet path, a mechanism for abutting the switched-back sheet against a lateral registration reference plane, and a preliminary shift function shared by the switch-back mechanism for shifting the sheet oppositely to the reference plane.

REFERENCES:
patent: 4146219 (1979-03-01), Phillips
patent: 4334759 (1982-06-01), Clausing
patent: 4487506 (1984-12-01), Repp et al.
patent: 4697911 (1987-10-01), Kajita et al.
patent: 4758862 (1988-07-01), Fukae et al.
patent: 4763166 (1988-08-01), Watanabe
patent: 4823159 (1989-04-01), Yamamoto et al.

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