JPS62137451U - - Google Patents
Info
- Publication number
- JPS62137451U JPS62137451U JP2348486U JP2348486U JPS62137451U JP S62137451 U JPS62137451 U JP S62137451U JP 2348486 U JP2348486 U JP 2348486U JP 2348486 U JP2348486 U JP 2348486U JP S62137451 U JPS62137451 U JP S62137451U
- Authority
- JP
- Japan
- Prior art keywords
- developing roller
- toner
- main body
- regulating blade
- developing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims description 3
- 108091008695 photoreceptors Proteins 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 4
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000004804 winding Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Dry Development In Electrophotography (AREA)
Description
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図の一部を拡大
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
１３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 longitudinal cross-sectional view showing a part of Fig. 1, and Fig. 3 shows the image forming unit separated. Exploded perspective views shown in Figures 4 and 5.
The figure is an overall perspective view showing the state in which the upper part of the main body is opened, and FIG. 6 is a perspective view showing the state in which the developing unit is installed.
FIG. 7 is a front view of the developing unit, and FIG. 8 is an exploded perspective view showing another embodiment of the developing unit supporting means.
Figures 9 and 10 are longitudinal and cross-sectional views showing the developing roller sealing device, Figure 11 is an explanatory diagram showing the bias voltage application means, and Figure 12 is a partially enlarged view showing the shape of the tip of the agitator. A perspective view, FIGS. 13a, b, and c are side views showing an embodiment of the agitator, FIGS. 14 and 15 are side views and plan views of the cartridge, and FIGS. 16 and 17 are seal windings 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 (1)
持するとともに、上記本体下部内に、感光体を備
えた担持体ユニツトと現像ローラを備えた現像ユ
ニツトとを着脱可能に装着してなり、上記現像ユ
ニツトの本体ケース内に設けられた供給ローラに
よりトナーを現像ローラ側に供給し、この現像ロ
ーラ上に付着されたトナーをトナー層規制ブレー
ドにより薄層化して現像を行なわせるようにした
画像形成装置において、上記供給ローラは、現像
ローラの両端部からはみ出さないように現像ロー
ラより短く形成されるとともに、現像ローラは、
トナー層規制ブレードの両端部からはみ出さない
ようにトナー層規制ブレードより短く形成され、
かつ、上記現像ローラとトナー層規制ブレードと
の両端がわ隙間部分に、トナーシール用のシール
部材を設置してなることを特徴とする画像形成装
置。 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. Image formation in which toner is supplied to the developing roller side by a supply roller provided inside the main body case of the developing unit, and the toner adhered to the developing roller is made into a thin layer by a toner layer regulating blade for development. In the apparatus, the supply roller is formed shorter than the developing roller so as not to protrude from both ends of the developing roller, and the developing roller is
It is formed shorter than the toner layer regulating blade so as not to protrude from both ends of the toner layer regulating blade.
An image forming apparatus further comprising a sealing member for toner sealing installed in a gap between both ends of the developing roller and the toner layer regulating blade.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2348486U JPS62137451U (en) | 1986-02-20 | 1986-02-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2348486U JPS62137451U (en) | 1986-02-20 | 1986-02-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62137451U true JPS62137451U (en) | 1987-08-29 |
Family
ID=30821824
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2348486U Pending JPS62137451U (en) | 1986-02-20 | 1986-02-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62137451U (en) |
-
1986
- 1986-02-20 JP JP2348486U patent/JPS62137451U/ja active Pending