Copier with retractable charging unit to prevent damage to drum

Details Copier with retractable charging unit to prevent damage to drum Copier with retractable charging unit to prevent damage to drum

1990-09-18

1992-03-10

Grimley, A. T.

Photocopying

Contact printing

Light boxes

355219, G03G 1500

Patent

active

050953354

ABSTRACT:
An image forming apparatus includes a cartridge detachably mountable to the image forming apparatus, the cartridge including a movable image bearing member; a charging member having a contact member for contacting to the image bearing member in the cartridge to charge the image bearing member, the contact member is mounted in the image bearing member; a supporting member for supporting the contact member for movement between a first position where the contact member is contacted to the image bearing member and a second position where the contact member is away from the image bearing member; a member actable on the supporting member in accordance with mounting or dismounting of the cartridge relative to the image forming apparatus; wherein upon dismounting of the cartridge, the contact member is moved from the first position to the second position.

REFERENCES:
patent: 4851960 (1989-07-01), Nakamura et al.
patent: 4896193 (1990-01-01), Kagiura et al.

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