Improved paper handling mechanism in conjunction with image form

Details Improved paper handling mechanism in conjunction with image form Improved paper handling mechanism in conjunction with image form

1988-09-30

1990-05-15

Moses, R. L.

Photocopying

Contact printing

Light boxes

355200, G03G 1500

Patent

active

049262190

ABSTRACT:
An image forming apparatus having an image forming case which is removably mounted on a body of the apparatus and loaded with a photoconductive drum, developing unit and a cleaning unit integrally therewith. A transfer charger unit and a register roller unit are each removably mounted on the image forming case by a holder. The holders of the transfer charger unit and register roller unit are individually accurately positioned relative to the case by a positioning mechanism when mounted on the case. The transfer charger unit is surely grounded when mounted on the case. An upper and a lower guide plate are interposed between the register roller unit and the photoconductive element for guiding a paper sheet. Opposite edges of each guide plate are individually disposed at predetermined positions.

REFERENCES:
patent: 4386838 (1983-06-01), Hirabayashi et al.
patent: 4464042 (1984-08-01), Omori et al.
patent: 4478506 (1984-10-01), Miyoshi et al.
patent: 4685792 (1987-08-01), Iseki et al.
patent: 4809033 (1989-02-01), Ikemoto et al.

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