Electrophotographic copier with replaceable photoconductive shee

Details Electrophotographic copier with replaceable photoconductive shee Electrophotographic copier with replaceable photoconductive shee

1979-04-20

1980-08-26

Moses, R. L.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

1014151, 355 3DR, G03G 1500, B41F 128

Patent

active

042192722

ABSTRACT:
An electrophotographic copier includes a replaceable photoconductive sheet having a leading edge portion and a trailing edge portion; a guide drum rotatably supported by a drum shaft and having a holding device for securing the leading sheet edge to the guide drum; a charging station, an illuminating station, a developing station, a transfer station and a conductive sheet cleaning station arranged in a circumferential distribution about the guide drum. The leading edge of the photoconductive sheet is attached to the guide drum and, upon rotation of the guide drum, a pressing roll, brought into engagement with the guide drum by a control mechanism, presses the trailing edge of the photoconductive sheet on the leading edge, as a result of which, by means of an interposed adhesive, the photoconductive sheet is bonded together to form an endless band about the guide drum. The control mechanism is actuated by one of the processing stations arranged about the guide drum, so that when such processing station is moved into an open position providing access to the photoconductive sheet, the pressing roller is automatically lowered onto the guide drum and, conversely, when the processing station is moved into its closed position, the pressing roller is automatically lifted off the guide drum.

REFERENCES:
patent: 3719142 (1973-03-01), Abe et al.
patent: 3750573 (1973-08-01), Hauesler et al.
patent: 3839961 (1974-10-01), Murata
patent: 3867026 (1975-02-01), Ogawa
patent: 3903795 (1975-09-01), Suzuki
patent: 4056829 (1977-11-01), Ikeda
patent: 4161358 (1979-07-01), Boschet

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