JPS63191350U

JPS63191350U -

Info

Publication number: JPS63191350U
Application number: JP8076287U
Authority: JP
Priority date: 1987-05-27
Filing date: 1987-05-27
Publication date: 1988-12-09

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示す画像形成装置
の感光体装置と現像装置とを装着した部分の正面
図、第２図、第３図はカムを使用した現像ユニツ
トを移動させる手段の別の実施例をそれぞれ示す
部分正面図、第４図は本考案のさらに別の実施例
を示す画像形成装置の現像ユニツト部分の正面図
、第５図は従来の画像形成装置の概略正面図であ
る。１……画像形成装置、２……感光体ドラム、４
……感光体ユニツト、５……現像ローラ、６……
現像ユニツト、２２……押圧移動レバー、２６…
…ばね、２７……係止部材、３２，４７……ソレ
ノイド、３３，４９……スイツチ、３５……メイ
ンスイツチ、４５……カム、５３……押圧移動部
材、５５……押動レバー、５８……押圧突起、１
４５……ギヤ付カム、１４７……ウオームギヤ、
１４８……モータ、１４９……モータ駆動回路、
１５０，１５１……スイツチ、１５２……現像ユ
ニツト脱着スイツチ。 FIG. 1 is a front view of a portion of an image forming apparatus in which a photoreceptor device and a developing device are installed, showing an embodiment of the present invention, and FIGS. 2 and 3 show a means for moving a developing unit using a cam. FIG. 4 is a front view of a developing unit portion of an image forming apparatus showing yet another embodiment of the present invention, and FIG. 5 is a schematic front view of a conventional image forming apparatus. be. 1... Image forming device, 2... Photosensitive drum, 4
...Photoconductor unit, 5...Developing roller, 6...
Developing unit, 22...Press movement lever, 26...
... Spring, 27 ... Locking member, 32, 47 ... Solenoid, 33, 49 ... Switch, 35 ... Main switch, 45 ... Cam, 53 ... Press movement member, 55 ... Push lever, 58 ...Press projection, 1
45... Geared cam, 147... Worm gear,
148...Motor, 149...Motor drive circuit,
150, 151...Switch, 152...Developing unit detachment switch.

Claims

[Scope of Claim for Utility Model Registration] At least one of a photoconductor device including a photoconductor drum and a developing device including a developing roller is configured as a unit that can be attached to and detached from the main body of an image forming apparatus, and the unitized photoconductor In an image forming apparatus in which either one of a developing unit and a developing unit is supported on an image forming apparatus main body so as to be movable relative to the other, and a photosensitive drum and a developing roller are brought into contact with each other to perform development, the photosensitive member is a moving means for moving either the photosensitive unit or the developing unit from a first position where the drum and the developing roller are separated from each other to a second position where the photosensitive drum and the developing roller are in contact with each other; a holding means for holding the photoconductor unit or the developing unit in the first position; and a holding means for holding the photoconductor unit or the photoconductor unit in the second position when the developing unit or the photoconductor unit is installed in the main body of the image forming apparatus. a releasing means for releasing the holding means; and a second releasing means for releasing the holding means, and a second
and a moving means for moving the image forming apparatus from the first position to the first position.