Image carrier drum for an electrophotographic copier

Details Image carrier drum for an electrophotographic copier Image carrier drum for an electrophotographic copier

1979-09-19

1980-12-16

Moses, R. L.

Photocopying

Projection printing and copying cameras

Combined with or convertible to a contact printer

242 673R, 355 3DR, G03G 1500

Patent

active

042393752

ABSTRACT:
A drum for an electrophotographic copier which serves as an intermediate image carrier which drum is rotatably mounted in the copier and includes a takeup roll and a supply roll with photoconducting material, in the form of a web, being guided from the supply roll over a deflection roll outwardly to the surface of the drum and over a second deflection roll to the takeup roll. The takeup roll is adapted to be coupled to a drive motor disposed outside of the drum for a stepwise feed of the photoconducting material. The drum is rotatably mounted by two pins with one of the pins being rotatable circumferentially relative to the drum and being non-rotatably connectable with a gear meshing with a further gear mounted on the takeup roll. The one pivot pin is connected by a freewheel mechanism to a drive motor which, in normal operation, drives another component of the copier with the rotational direction of the drive motor being reversible in order to drive the one pivot pin.

REFERENCES:
patent: 3974974 (1976-08-01), Nishikawa
patent: 4102570 (1978-07-01), Shimoda

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