Process cartridge, process cartridge assembly method, and image

Details Process cartridge, process cartridge assembly method, and image Process cartridge, process cartridge assembly method, and image

1996-04-25

1998-05-05

Smith, Matthew S.

Electrophotography

Having particular structure

Modular or displaceable

399111, 399125, G03G 1500

Patent

active

057490279

ABSTRACT:
An assembling method of a process cartridge detachably mountable to a main assembly of an image forming apparatus includes a. preparing a drum frame to which an electrophotographic photosensitive drum is mounted; b. preparing a developing frame having a toner accommodating portion for accommodating toner for developing a latent image formed on the electrophotographic photosensitive drum and also having a developing device mounted thereto, for developing the latent image formed on the electrophotographic photosensitive drum, using toner accommodated in the toner accommodating portion; c. engaging a portion of the drum frame and a portion of the developing frame; d. coupling a coupling member with a portion where the drum frame and the developing frame are engaged to couple the drum frame and developing frame, wherein the drum frame and the developing frame are rotatable relative to each other about the coupling member; e. spring mounting process of mounting a compression spring to apply elastic force to the drum frame and the developing frame thus coupled.

REFERENCES:
patent: 5331372 (1994-07-01), Tsuda et al.
patent: 5404198 (1995-04-01), Noda et al.
patent: 5470635 (1995-11-01), Shirai et al.
patent: 5475470 (1995-12-01), Sasago et al.
patent: 5488459 (1996-01-01), Tsuda et al.
patent: 5510878 (1996-04-01), Noda et al.
patent: 5543898 (1996-08-01), Shishido et al.

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