Photocopying – Contact printing – Light boxes
Patent
1994-05-16
1995-03-14
Royer, William J.
Photocopying
Contact printing
Light boxes
355243, 355282, 355311, G03G 2100, G03G 1504, G03G 1520
Patent
active
053981014
ABSTRACT:
An image forming apparatus includes a toner image forming device for forming a toner image corresponding to an image of an original document at a set operative copying magnification, a transfer device for transferring the toner image onto a copy item, a fixing device for fixing the toner image on the copy item under heat, a memory for storing correction values for a plurality of types of copy item usable in the image forming apparatus respectively, the correction value being adapted for correcting a change in length of a copy item due to the heat of the fixing device, a judge device for judging what type the present copy item is of, and a magnification setting device for setting an operative copying magnification to correct a shrink of the present copy item due to the fixing heat.
REFERENCES:
patent: 4782371 (1988-11-01), Yokota
patent: 4789879 (1988-12-01), Murakami
patent: 4792828 (1988-12-01), Ozawa et al.
patent: 5282001 (1994-01-01), Watson
patent: 5285247 (1994-02-01), Itoh
Fukano Masahiko
Izumi Koji
Kagawa Tetsuya
Kageyama Hiroshi
Takada Akihiro
Mita Industrial Co. Ltd.
Royer William J.
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