JPS642258U - - Google Patents
Info
- Publication number
- JPS642258U JPS642258U JP9595787U JP9595787U JPS642258U JP S642258 U JPS642258 U JP S642258U JP 9595787 U JP9595787 U JP 9595787U JP 9595787 U JP9595787 U JP 9595787U JP S642258 U JPS642258 U JP S642258U
- Authority
- JP
- Japan
- Prior art keywords
- developing roller
- developer
- layer forming
- forming member
- component
- 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
- 238000005192 partition Methods 0.000 claims description 3
- 238000009966 trimming Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Dry Development In Electrophotography (AREA)
Description
第1図〜第5図は本考案の実施例を示しており
、第1図は第一実施例に係る現像装置を組込んだ
複写機の構成説明図、第2図はこの現像装置の斜
視図、第3図はその部分断面図を示し、また第4
図は第二実施例に係る現像装置の斜視図、第5図
はその部分断面図を示しており、また第6図は従
来の磁性一成分現像装置を組込んだ複写機の構成
説明図、第7図はその現像装置の斜視図、第8図
はその部分断面図、第9図は従来の非磁性一成分
現像装置の構成断面図をそれぞれ示している。
[符号説明]、1……感光ドラム、2……装置
ハウジング、3……現像ローラ、5……層形成部
材、6……第一仕切り壁、17……トリミング部
材。
1 to 5 show embodiments of the present invention, FIG. 1 is an explanatory diagram of the configuration of a copying machine incorporating a developing device according to the first embodiment, and FIG. 2 is a perspective view of this developing device. Fig. 3 shows a partial sectional view thereof, and Fig. 4 shows a partial sectional view thereof.
The figure shows a perspective view of a developing device according to the second embodiment, and FIG. 5 shows a partial sectional view thereof, and FIG. 6 shows a configuration explanatory diagram of a copying machine incorporating a conventional magnetic one-component developing device. FIG. 7 is a perspective view of the developing device, FIG. 8 is a partial sectional view thereof, and FIG. 9 is a sectional view of the structure of a conventional non-magnetic one-component developing device. [Description of symbols] 1...Photosensitive drum, 2...Device housing, 3...Developing roller, 5...Layer forming member, 6...First partition wall, 17...Trimming member.
Claims (1)
、この現像ローラの外周面に当接配置されてこの
外周面上に現像剤の薄層を形成しかつこの現像剤
を摩擦帯電する層形成部材とを備え、装置ハウジ
ングに設けられた開口部を介し潜像担持体へ向け
て現像剤の供給を行う一成分現像装置において、
上記現像ローラと層形成部材との当接部近傍位置
には、この当接部を装置ハウジング内部から区画
して上記当接部へ供給される現像剤の供給量を一
定に規制するための供給量規制手段を設けたこと
を特徴とする一成分現像装置。 (2) 上記供給量規制手段が、現像ローラ近傍に
配置された仕切り壁で構成されていることを特徴
とする実用新案登録請求の範囲第1項記載の一成
分現像装置。 (3) 上記供給量規制手段が、現像ローラ近傍に
配置されたトリミング部材と、このトリミング部
材に基端側が取付けられた層形成部材とで構成さ
れていることを特徴とする実用新案登録請求の範
囲第1項記載の一成分現像装置。 (4) 上記層形成部材が、現像ローラとの当接部
の現像剤供給側を下方にして当接配置されている
ことを特徴とする実用新案登録請求の範囲第3項
記載の一成分現像装置。[Claims for Utility Model Registration] (1) A developing roller disposed opposite to the latent image carrier, and a developing roller disposed in contact with the outer circumferential surface of the developing roller to form a thin layer of developer on the outer circumferential surface. A one-component developing device that includes a layer forming member that triboelectrically charges the developer and supplies the developer toward the latent image carrier through an opening provided in the device housing.
At a position near the abutting part between the developing roller and the layer forming member, a supply is provided to partition this abutting part from the inside of the device housing and to regulate the amount of developer supplied to the abutting part to a constant level. A one-component developing device characterized by being provided with an amount regulating means. (2) The one-component developing device according to claim 1, wherein the supply amount regulating means is constituted by a partition wall disposed near the developing roller. (3) A utility model registration request characterized in that the supply amount regulating means is composed of a trimming member disposed near the developing roller and a layer forming member whose proximal end side is attached to the trimming member. A one-component developing device according to scope 1. (4) One-component development according to claim 3 of the utility model registration, characterized in that the layer forming member is disposed in contact with the developing roller with the developer supply side facing downward. Device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9595787U JPS642258U (en) | 1987-06-24 | 1987-06-24 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9595787U JPS642258U (en) | 1987-06-24 | 1987-06-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS642258U true JPS642258U (en) | 1989-01-09 |
Family
ID=30961145
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9595787U Pending JPS642258U (en) | 1987-06-24 | 1987-06-24 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS642258U (en) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5443038A (en) * | 1977-09-10 | 1979-04-05 | Canon Inc | Electrostatic image developing device |
JPS58117553A (en) * | 1981-12-31 | 1983-07-13 | Ricoh Co Ltd | Developing device |
JPS60257460A (en) * | 1984-06-01 | 1985-12-19 | Matsushita Electric Ind Co Ltd | Developing device |
JPS6227360B2 (en) * | 1984-12-24 | 1987-06-13 | Boeicho Gijutsu Kenkyu Honbucho |
-
1987
- 1987-06-24 JP JP9595787U patent/JPS642258U/ja active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5443038A (en) * | 1977-09-10 | 1979-04-05 | Canon Inc | Electrostatic image developing device |
JPS58117553A (en) * | 1981-12-31 | 1983-07-13 | Ricoh Co Ltd | Developing device |
JPS60257460A (en) * | 1984-06-01 | 1985-12-19 | Matsushita Electric Ind Co Ltd | Developing device |
JPS6227360B2 (en) * | 1984-12-24 | 1987-06-13 | Boeicho Gijutsu Kenkyu Honbucho |