Photocopying – Contact printing – Light boxes
Patent
1993-07-02
1994-08-02
Grimley, A. T.
Photocopying
Contact printing
Light boxes
355274, G03G 1516
Patent
active
053350529
ABSTRACT:
An image forming apparatus includes a transfer belt device which transfers a toner image formed on a rotating photosensitive drum onto a recording sheet by providing corona charging from a rear surface of a transferring/conveying belt that is stretched around a driving roller and a driven roller, which conveys the recording sheet. A movable frame supports both ends of the rotational shafts of the driving roller and the driven roller. The movable frame is rotatably supported by a stationary housing of the transfer belt device. The movable frame can oscillate around a bearing section so that both ends of the rotational shaft of the driving roller connected with a driving source are supported. One end of the shaft of the driving roller connected with the driving source is supported by a stationary bearing member of the stationary housing. The other end of the shaft of the driving roller is supported by a movable bearing member which is movably provided in the stationary housing.
REFERENCES:
patent: 5051783 (1991-09-01), Sato
patent: 5115280 (1992-05-01), Hamada et al.
patent: 5140375 (1992-08-01), Shindo et al.
patent: 5172174 (1992-12-01), Fuma et al.
patent: 5196870 (1993-03-01), Itoh et al.
patent: 5216453 (1993-06-01), Itoh
Sato Kenji
Tokutake Naoto
Dang T. A.
Grimley A. T.
Konica Corporation
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