JPS62137449U

JPS62137449U -

Info

Publication number: JPS62137449U
Application number: JP2348186U
Authority: JP
Priority date: 1986-02-20
Filing date: 1986-02-20
Publication date: 1987-08-29
Also published as: JPH0452760Y2

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例における画像形成装
置を示す縦断面図、第２図は第１図の一部拡大し
て示した拡大縦断面図、第３図は作像ユニツトを
分離して示した分解斜視図、第４図および第５図
は本体上部を開いた状態を示す全体斜視図、第６
図は現像ユニツトの装着状態を示した斜視図、第
７図は現像ユニツトの正面図、第８図は現像ユニ
ツト支持手段の他の実施例を示す分解斜視図、第
９図および第１０図は現像ローラのシール装置を
示す縦断面図および横断面図、第１１図はバイア
ス電圧印加手段を示した説明図、第１２図はアジ
テータの先端形状を示した部分拡大斜視図、第１
３図ａ，ｂ，ｃはアジテータの実施例を示した側
面図、第１４図および第１５図はカートリツジの
側面図および平面図、第１６図および第１７図は
カートリツジのシール巻取部分を示した横断面図
および正面図、第１８図は現像ユニツトの接触付
勢手段を表した部分拡大斜視図、第１９図は押圧
片の他の実施例を表した斜視図である。４…感光体、１０…プリンタ本体、１０ａ…本
体上部、１０ｂ…本体下部、１６…担持体ユニツ
ト、１７…現像ユニツト、１８…作像ユニツトケ
ース、２２…現像ローラ、３７…現像ユニツト保
持装置、２３…供給ローラ、２４…アジテータ、
２８…コロ、３０…軸受ケース、３１，３２…コ
イルばね、４０…軸受体、４１，４２…シール部
材、４５…メイン入力端子、４６…供給バイアス
端子、４７…絶縁基板、４９…現像バイアス端子
、５２…アース端子、６０…カートリツジ、６２
…シール部材、６３…巻取ローラ、６４…巻取レ
バー、６５…ボス部、６６…回転伝達部、６７…
回転係止部、１００…ヒンジ押圧片、１１２…本
体フレーム、１１５…ロツク装置。 FIG. 1 is a vertical cross-sectional view showing an image forming apparatus according to an embodiment of the present invention, FIG. 2 is an enlarged vertical cross-sectional view showing a portion of FIG. 1, and FIG. 3 is a separated view of the image forming unit. Figures 4 and 5 are an exploded perspective view showing the upper part of the main body in an open state, and Figure 6 is an exploded perspective view.
7 is a front view of the developing unit, FIG. 8 is an exploded perspective view showing another embodiment of the developing unit supporting means, and FIGS. 9 and 10 are FIG. 11 is an explanatory diagram showing the bias voltage applying means; FIG. 12 is a partially enlarged perspective view showing the shape of the tip of the agitator;
Figures 3a, b, and c are side views showing an embodiment of the agitator, Figures 14 and 15 are side views and plan views of the cartridge, and Figures 16 and 17 are the seal winding portion of the cartridge. FIG. 18 is a partially enlarged perspective view showing the contact urging means of the developing unit, and FIG. 19 is a perspective view showing another embodiment of the pressing piece. 4... Photoreceptor, 10... Printer body, 10a... Upper body, 10b... Lower body, 16... Carrier unit, 17... Developing unit, 18... Image forming unit case, 22... Developing roller, 37... Developing unit holding device, 23... Supply roller, 24... Agitator,
28... Roller, 30... Bearing case, 31, 32... Coil spring, 40... Bearing body, 41, 42... Seal member, 45... Main input terminal, 46... Supply bias terminal, 47... Insulating substrate, 49... Development bias terminal , 52... Earth terminal, 60... Cartridge, 62
... Seal member, 63... Winding roller, 64... Winding lever, 65... Boss part, 66... Rotation transmission part, 67...
Rotation locking portion, 100... Hinge pressing piece, 112... Body frame, 115... Lock device.

Claims

[Scope of utility model registration request]

The upper part of the main body is supported to be openable to the lower part of the main body, and a carrier unit including a photoreceptor and a developing unit including a developing roller are removably mounted in the lower part of the main body. The sealing member of the toner cartridge, which is detachably attached to the main body case of the developing unit, is rolled up and peeled off by a take-up roller installed on the toner cartridge, and the toner in the toner cartridge is transferred to the developing roller. The image forming apparatus is characterized in that a take-up lever equipped with a ratchet mechanism is removably provided at the shaft end of the toner cartridge. .