Conveyor of a copying apparatus

Details Conveyor of a copying apparatus Conveyor of a copying apparatus

1988-04-13

1989-06-27

Wintercorn, Richard A.

Photocopying

Contact printing

Machine

355 27, 355132, G03B 2730

Patent

active

048434353

ABSTRACT:
A conveyor apparatus used in a copying apparatus of the type using separate diffusion transfer photographic materials, and a photosensitive material in the form of a roller contained in a magazine which is withdrawn and cut to a predetermined length to form a photosensitive sheet. A latent image is created in the photosensitive sheet by exposing it using a light source, and an image-receiving material in the form of a sheet is superposed under the exposed photosensitive sheet. A positive image is formed on the image-receiving material using a diffusion transfer processing. The image-receiving sheet is withdrawn from a cassette wherein a stack of image-receiving sheets are contained. The conveyor apparatus includes feeding rollers disposed in front of the cassette for feeding the image-receiving sheet to a superposition station of the apparatus, an extracting roller for extracting an uppermost image-receiving sheet in the stack and transferring it to a position between the feeding rollers so that it is nipped by the rollers, and a sensor for detecting the image-receiving sheet nipped between the feeding rollers to cause withdrawing rollers to rotate so as to withdraw the photosensitive material from the magazine and transport it to an exposure station where the exposing is performed. If the sensor does not detect the image-receiving sheet within a predetermined time, copying operations are suspended.

REFERENCES:
patent: 3904292 (1975-09-01), Rauich
patent: 4053225 (1977-10-01), Morohashi
patent: 4082446 (1978-04-01), Driscoll et al.
patent: 4529302 (1985-07-01), Tisserand et al.
patent: 4624558 (1986-11-01), Johnson
patent: 4626099 (1986-12-01), Zuelke et al.
patent: 4797710 (1989-01-01), Ishikawa

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