Image forming apparatus with arrangement for controlling...

Details Image forming apparatus with arrangement for controlling... Image forming apparatus with arrangement for controlling...

2006-03-28

2006-03-28

Grimley, Arthur T. (Department: 2852)

Electrophotography

Having particular structure

Modular or displaceable

C399S116000, C399S119000

Reexamination Certificate

active

07020416

ABSTRACT:
The process frame body has the guide portion, and the development device has the to-be-guided shaft. When the process frame body is unattached to the apparatus main body, the guide portion of the development device is absent, thus preventing proper attachment and positioning of the development device. The convex engagement portion is formed integrally with the development device so as to jut into the attachment path for the process frame body. This prevents attachment of the process frame body when the development device is attached first. If users try to attach the process frame body after attachment of the development device, the convex engagement portion interferes with the process frame body, thus preventing attachment of the process frame body.

REFERENCES:
patent: 4821063 (1989-04-01), Kaneshige
patent: 4912509 (1990-03-01), Kaneshige
patent: 5697008 (1997-12-01), Katoh et al.
patent: 6088555 (2000-07-01), Mizuno
patent: 6678489 (2004-01-01), Carter et al.
patent: 6785492 (2004-08-01), Tanizaki et al.
patent: 6853821 (2005-02-01), Ishiguro et al.
patent: 62-272283 (1987-11-01), None
patent: 5-6037 (1993-01-01), None
patent: 10-268734 (1998-10-01), None

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