Photosensitive sheet rewind device for image forming apparatus

Details Photosensitive sheet rewind device for image forming apparatus Photosensitive sheet rewind device for image forming apparatus

1990-03-07

1991-02-19

Wintercorn, Richard A.

Photocopying

Projection printing and copying cameras

Original moves continuously

242 57, 352124, 355 72, G03B 2748, G03B 2750, G03B 2770

Patent

active

049948512

ABSTRACT:
A rewind device for a photosensitive sheet in an image forming apparatus comprises a supply shaft reversing device which winds back the photosensitive sheet by rotating a supply shaft rotatively supporting a photosensitive sheet roll in the reverse direction to the drawing direction of the photosensitive sheet and a control device which measures a rotation amount of the photosensitive sheet roll in the drawing direction for the photosensitive sheet and that in the reverse direction. The control device is composed so that it may stop the winding back of the photosensitive sheet by the supply shaft reversing device in order to constantly wind back a fixed amount of the photosensitive sheet by comparing both of the rotation amounts.

REFERENCES:
patent: 3690750 (1972-09-01), Taillon
patent: 3700186 (1972-10-01), Burnham
patent: 3782666 (1974-01-01), Sandrone et al.
patent: 4705958 (1987-11-01), Sugita
patent: 4811058 (1989-03-01), LaCourt
patent: 4925121 (1990-05-01), Tapscott et al.

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