Developing device

Details Developing device Developing device

1995-02-22

1996-03-26

Smith, Mathew S.

Photocopying

Contact printing

Light boxes

141346, 141367, 222DIG1, 355245, G03G 1506

Patent

active

055025536

ABSTRACT:
A developing device using dual-component developer which is detachably attachable a first cartridge accommodating toner or a second cartridge accommodating starter incorporating at least carrier. The developing device has a developing section which develops an electrostatic latent image on a photosensitive member, a coupling which detachably holds a first cartridge or a second cartridge and having a first aperture corresponding to a replenishment aperture of the first cartridge as well as a second aperture corresponding to a replenishment aperture of the second cartridge, toner buffer which supplies toner from the first cartridge to the developing section by predetermined amounts when the first cartridge is attached to the coupling, and a replenishment path provided between the developing section and the coupling for supplying starter from the second cartridge directly to the developing section when the second cartridge is attached to the coupling.

REFERENCES:
patent: 5049941 (1991-09-01), Manno et al.
patent: 5250749 (1993-10-01), Aimoto

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