JPH0197352U - - Google Patents
Info
- Publication number
- JPH0197352U JPH0197352U JP19214287U JP19214287U JPH0197352U JP H0197352 U JPH0197352 U JP H0197352U JP 19214287 U JP19214287 U JP 19214287U JP 19214287 U JP19214287 U JP 19214287U JP H0197352 U JPH0197352 U JP H0197352U
- Authority
- JP
- Japan
- Prior art keywords
- developing device
- developing
- horizontal direction
- long hole
- photoreceptor drum
- 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.)
- Granted
Links
- 108091008695 photoreceptors Proteins 0.000 claims description 4
- 238000004140 cleaning Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Landscapes
- Discharging, Photosensitive Material Shape In Electrophotography (AREA)
- Dry Development In Electrophotography (AREA)
Description
図はこの考案の一実施例を示し、第１図は本願
現像装置を組んだ作像ユニツトの拡大断面図、第
２図は現像スリーブ上の現像剤の厚みの規制と感
光体ドラムとの関係を示す説明図、第３図は感光
体ドラムの軸支状態を示す平面断面図、第４図は
同側面図、第５図は従来装置の説明図である。
１０…作像ユニツト、１１…感光体ドラム、１
３…現像部、１５…現像スリーブ、１９…現像剤
規制ブレード、５０…感光体ドラムの軸、５１，
５１′…長孔、５２…クリーニングブレード、５
３…ブレード支持部材、５４…バネ、５５…ヒン
ジ結合部。
The figure shows one embodiment of this invention. Figure 1 is an enlarged sectional view of an image forming unit incorporating the developing device of the present invention, and Figure 2 is the relationship between the regulation of the thickness of the developer on the developing sleeve and the photoreceptor drum. FIG. 3 is a plan sectional view showing the shaft support state of the photosensitive drum, FIG. 4 is a side view of the same, and FIG. 5 is an explanatory view of a conventional device. 10...Image forming unit, 11...Photosensitive drum, 1
3... Developing section, 15... Developing sleeve, 19... Developer regulating blade, 50... Shaft of photoreceptor drum, 51,
51'...Long hole, 52...Cleaning blade, 5
3...Blade support member, 54...Spring, 55...Hinge joint portion.
Claims (1)
に軸支し、該感光体ドラムを現像スリーブ上の現
像剤に押圧するようにした現像装置であつて、前
記感光体ドラムの軸支部を長孔にしたことを特徴
とする現像装置。 (2) 前記長孔が、水平方向を長径にした長円形
である実用新案登録請求の範囲第１項記載の現像
装置。 (3) 前記長孔が、水平方向を長尺にした長方形
である実用新案登録請求の範囲第１項記載の現像
装置。[Claims for Utility Model Registration] (1) A developing device in which a photoreceptor drum is pivotally supported so as to be movable toward a developing sleeve, and the photoreceptor drum is pressed against developer on the developing sleeve, A developing device characterized in that the shaft portion of the photosensitive drum is formed into a long hole. (2) The developing device according to claim 1, wherein the elongated hole has an oval shape with its major axis in the horizontal direction. (3) The developing device according to claim 1, wherein the long hole has a rectangular shape elongated in the horizontal direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987192142U JPH0720686Y2 (en) | 1987-12-18 | 1987-12-18 | Development device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987192142U JPH0720686Y2 (en) | 1987-12-18 | 1987-12-18 | Development device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0197352U true JPH0197352U (en) | 1989-06-28 |
| JPH0720686Y2 JPH0720686Y2 (en) | 1995-05-15 |
Family
ID=31483015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987192142U Expired - Lifetime JPH0720686Y2 (en) | 1987-12-18 | 1987-12-18 | Development device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0720686Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001255777A (en) * | 2000-03-08 | 2001-09-21 | Kyocera Mita Corp | Image forming device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5831542U (en) * | 1981-08-26 | 1983-03-01 | 株式会社リコー | Recording support device |
| JPS58207069A (en) * | 1982-05-27 | 1983-12-02 | Matsushita Electric Ind Co Ltd | Copying apparatus |
-
1987
- 1987-12-18 JP JP1987192142U patent/JPH0720686Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5831542U (en) * | 1981-08-26 | 1983-03-01 | 株式会社リコー | Recording support device |
| JPS58207069A (en) * | 1982-05-27 | 1983-12-02 | Matsushita Electric Ind Co Ltd | Copying apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001255777A (en) * | 2000-03-08 | 2001-09-21 | Kyocera Mita Corp | Image forming device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0720686Y2 (en) | 1995-05-15 |