Color image forming apparatus with a process cartridge and a col

Details Color image forming apparatus with a process cartridge and a col Color image forming apparatus with a process cartridge and a col

1994-09-28

1996-07-30

Smith, Matthew S.

Photocopying

Contact printing

Light boxes

355210, 355327, G03G 1501

Patent

active

055417205

ABSTRACT:
A color image forming apparatus which includes: an enclosure body having an upper body and a lower body; a photoreceptor for forming a toner image on its surface; a charger for charging the surface of the photoreceptor; a laser beam generator for forming a patent image on the surface charged by the charger; a black developer for forming a black toner image; in which the photoreceptor and the black developer form a process cartridge and the process cartridge is detachablly accommodated in the upper body; a color developer for forming a color toner image; in which the color developer includes a toner replenishing port and a toner hopper, and the color developer is capable of being detached from the process cartridge so that the color toner is supplied to the toner hopper through the toner replenishing port; a transferor for transferring the black toner image and the color toner image from the surface of the photoreceptor to the recording medium; and a support shaft member for pivotally supporting the upper body and the lower body so that the upper body has a closed position in which the upper body is coupled with the lower body by a coupling member so as to enable the color image forming apparatus for forming a color image and an open position in which the process cartridge is moved upward so as to create an open space between the transferor and the photoreceptor.

REFERENCES:
patent: 5036367 (1991-07-01), Haneda et al.
patent: 5287161 (1994-02-01), Matsuo et al.
patent: 5327208 (1994-07-01), Matsuo et al.
patent: 5402212 (1995-03-01), Ito et al.

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