Sheet guiding apparatus and an image forming apparatus using sam

Details Sheet guiding apparatus and an image forming apparatus using sam Sheet guiding apparatus and an image forming apparatus using sam

1991-11-04

1993-01-26

Grimley, A. T.

Photocopying

Contact printing

Light boxes

271272, 355311, 355317, G30G 2100

Patent

active

051825341

ABSTRACT:
A sheet guiding apparatus and an image forming apparatus incorporating same. The copy sheet being transported to the transfer station by a pair of feed rollers is guided by a pair of guide panels arranged in one direction and an opposite direction. These guide panels are located in an extension state with a substantial intervening spacing at the moment transport starts, and are located in a contracted state with a narrow intervening spacing at the completion of sheet transport so as to prevent transport error and transfer dislocation. The timing by which the guide panels change form the extension state to the contraction state changing in accordance with the copy sheet size to assure guidability regardless of the size of the copy sheet.

REFERENCES:
patent: 4101212 (1978-07-01), Sumiyoshi et al.
patent: 4391510 (1983-07-01), Cherian
patent: 4484737 (1984-11-01), Sugiyama
patent: 4708456 (1987-11-01), Shibata et al.
patent: 4862215 (1989-08-01), Nomura et al.

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