Smooth transfer sheet roller transport

Details Smooth transfer sheet roller transport Smooth transfer sheet roller transport

1997-02-21

1998-10-27

Grimley, Arthur T.

Electrophotography

Document handling

Copy

358474, 399400, G03G 1500

Patent

active

058289399

ABSTRACT:
An image forming apparatus that includes an image reading section, a transportation path, a photoreceptor, transferring area, a fixing area, and a feeding speed controller. The feeding speed controller selects the speed at which an original document passes through the image reading section between two speeds. A first speed is used when the transfer sheet is normal sized and for a period of time prior to a large sized sheet entering the fixing area. Once a large sized sheet enters the fixing area, the feeding speed controller changes the speed of the original document from the first speed to the second speed to provide proper scaling of the reproduced image on the transferred sheet. The second speed may be adjusted depending on the type of transfer sheet being used to take into account the amount of stretching of the material used to make the transfer sheet.

REFERENCES:
patent: 3863913 (1975-02-01), Hirafuji
patent: 4708456 (1987-11-01), Shibata et al.
patent: 5362041 (1994-11-01), Ryuzaki et al.
patent: 5417413 (1995-05-01), Huffman et al.
patent: 5428431 (1995-06-01), Abe et al.
patent: 5482265 (1996-01-01), Nakazato et al.
patent: 5561512 (1996-10-01), Fukano et al.

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