Canon Kabushiki Kaisha

Kensuke Suzuki

Tsutomu Nishiuwatoko

Ken Kikuchi

Takashi Akutsu

Daisuke Hiramatsu

Takahito Ueno

Toshiaki Takeuchi

Yuuki Nakamura

Jun Miyamoto

A technique enabling downsizing of an image forming apparatus is provided. A cleaning unitattachable to and detachable from an apparatus main body of an image forming apparatusthat forms an image on a recording materialis provided, with this cleaning unitincluding: a photosensitive drum; and a cleaning frame bodythat supports the photosensitive drumand that includes an openingthrough which laser lightfor exposing the photosensitive drumcan pass, wherein the openingis configured such that a width of the openingin a scanning direction in an irradiation range of the light for exposing the photosensitive drumbecomes greater toward a side of the photosensitive drumfrom a side of a light source of light for exposing the photosensitive drum

Cartridge, process cartridge, and image forming apparatus

An image forming apparatus includes a cartridge supporting member movable between an inside position in a state of carrying a first cartridge and a second cartridge, and a drawn position in which said first cartridge and said second cartridge are mountable and demountable relative to said cartridge supporting member. The supporting member includes a first mounting portion for a first cartridge, and a second mounting portion for a second cartridge which is disposed upstream of said first mounting portion with respect to a supporting member drawing direction. A first guide portion for the first cartridge, and a second guide portion for said second cartridge, wherein a downward movement distance of said second cartridge when the cartridge is demounted from said second mounting portion is larger than that of said first cartridge.

Cartridge supporting member having different moving direction guide portions

A toner storage unit provided in an image forming apparatus that enables a user to replace the toner storage unit when the user opens the door of the image forming apparatus, moves a developing cartridge in a direction corresponding to removal of the developing cartridge, and places the developing cartridge in the toner storage unit replacement position where the toner storage unit can be removed and replaced.

Image forming apparatus for replacing toner from the main body of the image forming apparatus

A process cartridge includes a main cartridge configured to be attachable to an apparatus body of an image forming apparatus, and a sub cartridge configured to be attachable to the main cartridge, wherein the main cartridge includes a moving member configured to be capable of moving between a first position for preventing, by the moving member contacting the apparatus body, the main cartridge from entering the inside of the apparatus body and a second position for allowing the main cartridge to enter the inside of the apparatus body, and a regulation member capable of moving between a regulation position for locking the moving member at the first position and an allowable position for allowing the moving member to move to the second position, and wherein the regulation member moves to the allowable position by attaching the sub cartridge to the main cartridge.

Process cartridge, main cartridge, sub cartridge, and image forming apparatus

In an image forming apparatus including a dooropenable with respect to a main assembly of the image forming apparatus, a drum cartridgedetachably mountable to the image forming apparatus main assembly, and detachably mountable developing cartridges-provided above the drum cartridge, wherein the doorincludes a positioning urging portioncontacting the developing cartridges in a state in which the dooris closed, the doorincludes drum cartridge mounting and demounting guidesR andL for regulating the drum cartridgeso as to pass along a non-interference path with the positioning urging portionin contact to the drum cartridgewhen the drum cartridgeis demounted from the image forming apparatus.

Image forming apparatus having a path regulating member

An image forming apparatus for forming an image on a recording material includes a cartridge supporting member carrying a first cartridge and a second cartridge. The cartridge supporting member includes a first guide portion for guiding mounting and demounting of the first cartridge relative to a first mounting portion, and a second guide portion for guiding mounting and demounting of the second cartridge relative to a second mounting portion. When the second cartridge is dismounted from the second mounting portion, the second cartridge moves in a downstream direction with respect to a drawing direction, and wherein a distance of movement, in the downstream direction, of the second cartridge along the second guide portion from the second mounting portion until the second cartridge is dismounted is greater than a distance of movement, in the downstream direction, of the first cartridge along the first guide portion from the first mounting portion until the first cartridge is dismounted.

Image forming apparatus with removable cartridge supporting member

Provided is an image forming apparatus. The image forming apparatus is provided with guide portions to be used to mount a cartridge group including plural cartridges in the image forming apparatus. Some of the guide portions are used also to mount an alternative cartridge, which is configured to occupy two or more of plural mounting spaces, in the image forming apparatus.

Growing community of inventors

Tagata-gun, Japan

Kensuke Suzuki