JPS63170855U - - Google Patents
Info
- Publication number
- JPS63170855U JPS63170855U JP6372887U JP6372887U JPS63170855U JP S63170855 U JPS63170855 U JP S63170855U JP 6372887 U JP6372887 U JP 6372887U JP 6372887 U JP6372887 U JP 6372887U JP S63170855 U JPS63170855 U JP S63170855U
- Authority
- JP
- Japan
- Prior art keywords
- developing device
- developing roller
- sealing member
- seal
- 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.)
- Granted
Links
- 230000003014 reinforcing effect Effects 0.000 claims 4
- 238000007789 sealing Methods 0.000 claims 4
- 108091008695 photoreceptors Proteins 0.000 claims 1
Landscapes
- Magnetic Brush Developing In Electrophotography (AREA)
Description
第１図はこの考案の現像装置の要部斜視図、第
２図は停止状態における現像装置の要部正面図、
第３図は運転中の現像ローラにより巻き込まれた
状態のブレードを示す斜視図、第４図は運転中の
現像装置の要部正面図、第５図は現像装置の側断
面図、第６図は従来の現像装置の側断面図、第７
図は運転中の従来の現像装置の要部正面図。
２……現像ローラ、３……現像剤、４……ケー
シング、５……感光体ドラム、１０……ブレード
。
FIG. 1 is a perspective view of the main parts of the developing device of this invention, FIG. 2 is a front view of the main parts of the developing device in a stopped state,
FIG. 3 is a perspective view showing the blade caught up by the developing roller during operation, FIG. 4 is a front view of the main parts of the developing device during operation, FIG. 5 is a side sectional view of the developing device, and FIG. 6 7 is a side sectional view of a conventional developing device.
The figure is a front view of the main parts of a conventional developing device in operation. 2...Developing roller, 3...Developer, 4...Casing, 5...Photosensitive drum, 10...Blade.
Claims (1)
ラと、現像ローラを開口部を通して感光体に臨ま
せた状態で収納配置するケーシングとを備え、ケ
ーシングの開口部下端に、現像ローラとの間に形
成される隙間を弾力的にシールするシール部材を
装着してなる現像装置において、シール部材の、
現像ローラ端部の現像剤担持部と非担持部との境
界部に対応する部分に、当該部分の剛性を強化す
るためのシール補強手段を具備していることを特
徴とする現像装置。 ２ シール補強手段が、シール小片を少なくとも
１枚重ね合せて形成された厚手部である上記実用
新案登録請求の範囲第１項記載の現像装置。 ３ シール補強手段が、一体的に形成された肉厚
部である上記実用新案登録請求の範囲第１項記載
の現像装置。 ４ シール部材が、弾力性を有するブレードであ
る上記実用新案登録請求の範囲第１項〜第３項の
何れかに記載の現像装置。 ５ シール部材が、弾力のあるブラシである上記
実用新案登録請求の範囲第１項〜第３項の何れか
に記載の現像装置。[Claims for Utility Model Registration] 1. A developing roller that magnetically attracts and carries a developer, and a casing in which the developing roller is housed so as to face the photoreceptor through an opening, and the opening of the casing In a developing device in which a sealing member is attached to a lower end of the developing roller to elastically seal a gap formed between the developing roller and the developing roller, the sealing member includes:
A developing device characterized in that a portion of an end of the developing roller corresponding to a boundary between a developer carrying portion and a non-developer carrying portion is provided with a seal reinforcing means for reinforcing the rigidity of the portion. 2. The developing device according to claim 1, wherein the seal reinforcing means is a thick portion formed by overlapping at least one small seal piece. 3. The developing device according to claim 1, wherein the seal reinforcing means is an integrally formed thick part. 4. The developing device according to any one of claims 1 to 3, wherein the sealing member is a blade having elasticity. 5. The developing device according to any one of claims 1 to 3, wherein the sealing member is a resilient brush.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987063728U JPH0755565Y2 (en) | 1987-04-27 | 1987-04-27 | Development device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987063728U JPH0755565Y2 (en) | 1987-04-27 | 1987-04-27 | Development device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63170855U true JPS63170855U (en) | 1988-11-07 |
| JPH0755565Y2 JPH0755565Y2 (en) | 1995-12-20 |
Family
ID=30899224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987063728U Expired - Lifetime JPH0755565Y2 (en) | 1987-04-27 | 1987-04-27 | Development device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0755565Y2 (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50102348U (en) * | 1973-12-24 | 1975-08-23 | ||
| JPS58163969A (en) * | 1982-03-24 | 1983-09-28 | Ricoh Co Ltd | Dry type developing device |
| JPS6227770A (en) * | 1985-07-29 | 1987-02-05 | Fuji Xerox Co Ltd | Developing device for one-component developer |
-
1987
- 1987-04-27 JP JP1987063728U patent/JPH0755565Y2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50102348U (en) * | 1973-12-24 | 1975-08-23 | ||
| JPS58163969A (en) * | 1982-03-24 | 1983-09-28 | Ricoh Co Ltd | Dry type developing device |
| JPS6227770A (en) * | 1985-07-29 | 1987-02-05 | Fuji Xerox Co Ltd | Developing device for one-component developer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0755565Y2 (en) | 1995-12-20 |