Photocopying – Contact printing – Light boxes
Patent
1993-02-18
1994-05-03
Moses, R. L.
Photocopying
Contact printing
Light boxes
355200, 355326, G03G 1500
Patent
active
053092031
ABSTRACT:
In an image forming apparatus such as a copying machine, a belt member is put across a driving roll and a tension roll, and springs provided on the tension roll give a tension to the belt member in order to part the tension roll from the driving roll. A spring constant of the springs is defined so as to absorb vibration of the belt member due to the eccentric rotation of the roll.
REFERENCES:
patent: 3796488 (1974-03-01), Tanaka et al.
patent: 3974952 (1976-08-01), Swanke et al.
patent: 5160946 (1992-11-01), Hwang
Fuji 'Xerox Co., Ltd.
Moses R. L.
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