JPS6149360U

JPS6149360U -

Info

Publication number: JPS6149360U
Application number: JP13334184U
Authority: JP
Priority date: 1984-08-31
Filing date: 1984-08-31
Publication date: 1986-04-02

Description

[Brief explanation of the drawing]

第１図および第２図は本考案に係る画像形成装
置のカートリツジの一実施例を示す断面図で、第
１図は現像器を装入した状態、第２図は現像器を
抜き出した状態を示す図、第３図はその一部の拡
大図、第４図は他の実施例を示す断面図、第５図
は電子写真複写装置の概略図、第６図および第７
図は従来のカートリツジを示す断面図である。１…感光ドラム、２…一次帯電器、４…現像器
、６…転写帯電器、７…定着器、８…クリーナ、
３４…シヤツター部材、３５…軸受部、３６…バ
ネ。 1 and 2 are cross-sectional views showing one embodiment of a cartridge of an image forming apparatus according to the present invention. FIG. 1 shows a state in which a developing device is inserted, and FIG. 2 shows a state in which the developing device is removed. 3 is an enlarged view of a part thereof, FIG. 4 is a sectional view showing another embodiment, FIG. 5 is a schematic diagram of the electrophotographic copying apparatus, and FIGS.
The figure is a sectional view showing a conventional cartridge. 1... Photosensitive drum, 2... Primary charger, 4... Developer, 6... Transfer charger, 7... Fixer, 8... Cleaner,
34...Shutter member, 35...Bearing portion, 36...Spring.

Claims

[Scope of utility model registration request]

At least an image bearing member, a primary charger for charging the image bearing member, and a cleaner for cleaning the surface of the image bearing member are housed in one cartridge, and the cartridge is replaceable in the main body of the image forming apparatus. A shutter member for closing a developing area opening of a cartridge in a cartridge-type image forming apparatus in which a developing device for developing a latent image formed on the image carrier can be replaced independently from the cartridge. is disposed in the cartridge frame so as to be openable and closable, and is provided with a spring member that elastically presses the shutter member against the developing area opening when the developing device is pulled out, and the action of the spring member when the developing device is inserted. An image forming apparatus comprising means for opening the shutter member against the force.