Developing device for image forming apparatus

Details Developing device for image forming apparatus Developing device for image forming apparatus

1996-10-16

1998-08-18

Smith, Matthew S.

Electrophotography

Having particular structure

Modular or displaceable

399112, 399223, 399224, 399227, G03G 1501

Patent

active

057970696

ABSTRACT:
A color printer including a photoconductive belt, a black developing unit which is located adjacent the photoconductive belt and a revolving type developing unit which is located adjacent the photoconductive belt and has a developing position on the photoconductive belt which is different from that of the black developing unit. The revolving type developing unit has a yellow developing device, a magenta developing device and a cyan developing device, each including a detachable toner cartridge by which yellow toner, magenta toner and cyan toner is replenished. The black developing unit is replaceable independent of the revolving type developing unit by being removably mounted on a removable frame on which the revolving type developing unit is mounted. Both developing units are removable from the color printer as a body by removal of the removable frame from the color printer.

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