(56) References Cited(57) ABSTRACT US PATENT DOCUMENTS A unit detachably
mountable to an image forming apparatus 5,235,383 A 8/1993 Tada et al................... 399/112 …

(74) Attorney, Agent, or Firm—Oblon, Maier & Neustadt, LLP (57) ABSTRACT A powder
container includes a powder chamber for contain ing powder for forming images, a powder …

(57) ABSTRACT A developer Supply cartridge detachably mountable to a main assembly of
an image forming apparatus, includes a developer accommodating portion of …

(57) ABSTRACT A developer Supply cartridge Supplies a developer into a process
cartridge, and is detachably mountable to a main assembly of an electrophotographic image …

A toner cartridge and an electrophotographic image forming apparatus using the same are
provided. The toner cartridge includes: a toner bottle air-tightly storing a toner; a first shutter …

(57) ABSTRACT A developer Supply cartridge Supplies a developer into a process
cartridge, and is detachably mountable to a main assembly of an electrophotographic image …

A developer supply cartridge supplies developer into a process cartridge and is detachably
mountable to a main assembly of an electrophotographic image forming apparatus. The …

A mechanism for opening/closing a toner falling aperture is adapted to open/close a toner
falling aperture formed in the bottom of a toner cartridge main body in which toner is housed …

A developer supply container includes a developer contain ing portion having an opening
for supplying the developer therefrom; a shutter for closing the opening; a shutter support for …

A developer supply cartridge detachably mountable to a main assembly of an image forming
apparatus, includes a developer accommodating portion of accommodating a developer; a …