JPH0247661U

JPH0247661U -

Info

Publication number: JPH0247661U
Application number: JP12517188U
Authority: JP
Priority date: 1988-09-27
Filing date: 1988-09-27
Publication date: 1990-03-30

Description

[Brief explanation of the drawing]

第１図は本考案が適用される記録装置の一例の
全体構成を示す断面図、第２図及び第３図は夫々
本考案の実施例の現像装置の位置決め固定手段を
示す分解斜視図及び側面図、第４図はその感光体
ドラム、現像ローラ、その軸端歯車及びその駆動
歯車の位置関係を示す説明図、第５図及び第６図
は夫々従来の現像装置位置決め固定手段の一例の
分解斜視図及び側面図である。４…感光体ドラム、７…現像装置、１０…記録
装置、１３…クリーニングユニツト、１６…感光
体ユニツト、２１…現像装置ケース、２２…現像
ローラ、３０…現像ローラ軸端歯車、３１…現像
ローラ駆動歯車、３２…連結レバー、３３…引張
バネ、３４…板バネ、３５…圧縮バネ、３６…凹
部、３７…ピン、３８…突出部、３９…ストツパ
（位置決め停止手段）。 FIG. 1 is a sectional view showing the overall configuration of an example of a recording device to which the present invention is applied, and FIGS. 2 and 3 are exploded perspective views and side views showing positioning and fixing means for a developing device according to an embodiment of the present invention, respectively. 4 is an explanatory diagram showing the positional relationship of the photosensitive drum, the developing roller, the shaft end gear, and the driving gear, and FIGS. 5 and 6 are exploded views of an example of a conventional developing device positioning and fixing means, respectively. They are a perspective view and a side view. 4... Photoconductor drum, 7... Developing device, 10... Recording device, 13... Cleaning unit, 16... Photoconductor unit, 21... Developing device case, 22... Developing roller, 30... Developing roller shaft end gear, 31... Developing roller Drive gear, 32... Connection lever, 33... Tension spring, 34... Leaf spring, 35... Compression spring, 36... Recess, 37... Pin, 38... Projection, 39... Stopper (positioning stop means).

Claims

[Scope of Claim for Utility Model Registration] A developing device having a removable developing device attached to the main body of the recording device, in which a developing roller pivotally supported on both sides of a case of the developing device is brought into pressure contact with a photoreceptor drum to perform development, and the developing device is biased horizontally at right angles to the axis of the developing roller in a direction in which the developing roller is pressed against the photoreceptor drum, and connects the shaft end of the developing roller and a member fixed to the recording apparatus main body vertically below the shaft end of the developing roller. In an electrophotographic recording device that is connected to a main body by a connecting lever, a means for positioning and stopping the connecting lever in a rotational direction about the axis of the developing roller is fixed to the main body of the recording device. Characteristic electrophotographic recording device.