JPS642261U - - Google Patents
Info
- Publication number
- JPS642261U JPS642261U JP9596087U JP9596087U JPS642261U JP S642261 U JPS642261 U JP S642261U JP 9596087 U JP9596087 U JP 9596087U JP 9596087 U JP9596087 U JP 9596087U JP S642261 U JPS642261 U JP S642261U
- Authority
- JP
- Japan
- Prior art keywords
- pair
- developing device
- developer
- magnetic
- roller
- 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
- 239000000696 magnetic material Substances 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 230000001846 repelling effect Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Magnetic Brush Developing In Electrophotography (AREA)
Description
第１図〜第３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の断面図、
第２図はその一部拡大断面図、第３図は第二実施
例に係る現像装置の断面図を示し、また第４図は
従来の現像装置を組込んだ複写機の構成説明図、
第５図はその現像装置の断面図、第６図はその一
部拡大断面図を夫々示している。
〔符号説明〕、１……感光ドラム、３……現像
ローラ、３１……スリーブ、３２……磁気ローラ
、３３……切欠溝、７……剥離部、９……現像領
域部、１０……現像剤供給部。
1 to 3 show embodiments of the present invention, and FIG. 1 is a sectional view of a developing device according to the first embodiment;
FIG. 2 is a partially enlarged sectional view thereof, FIG. 3 is a sectional view of a developing device according to a second embodiment, and FIG. 4 is an explanatory diagram of the configuration of a copying machine incorporating a conventional developing device.
FIG. 5 is a sectional view of the developing device, and FIG. 6 is a partially enlarged sectional view thereof. [Description of symbols], 1... Photosensitive drum, 3... Developing roller, 31... Sleeve, 32... Magnetic roller, 33... Notch groove, 7... Peeling section, 9... Development area section, 10... Developer supply section.
Claims (1)
内部に配設され磁性材料により構成されてその外
周面に主極、搬送極、及び一対の反発極が配置さ
れた筒型磁気ローラとから成る現像ローラ上に現
像剤を供給し、この現像剤により潜像担持体の静
電潜像を現像し、かつ現像後、現像ローラ上に残
留する現像剤を上記一対の反発極の配置された剥
離部において剥離させて装置ハウジング内に回収
するようにした現像装置において、上記磁気ロー
ラの外周面にはその長さ方向に亘つて切欠部を形
成すると共に、この切欠部を間に介し上記一対の
反発極を隣接配置させたことを特徴とする現像装
置。 Consists of a rotatable cylindrical sleeve and a cylindrical magnetic roller made of magnetic material and having a main pole, a conveyance pole, and a pair of repulsion poles arranged on its outer circumferential surface. A developer is supplied onto the developing roller, the electrostatic latent image on the latent image carrier is developed with this developer, and after development, the developer remaining on the developing roller is removed by the pair of repelling poles arranged above. In the developing device, the outer peripheral surface of the magnetic roller is formed with a notch extending along its length, and the pair of magnetic rollers are peeled off at a portion of the developing device and collected in the device housing. A developing device characterized in that repulsion poles are arranged adjacent to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987095960U JP2523929Y2 (en) | 1987-06-24 | 1987-06-24 | Developing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987095960U JP2523929Y2 (en) | 1987-06-24 | 1987-06-24 | Developing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS642261U true JPS642261U (en) | 1989-01-09 |
| JP2523929Y2 JP2523929Y2 (en) | 1997-01-29 |
Family
ID=30961151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987095960U Expired - Lifetime JP2523929Y2 (en) | 1987-06-24 | 1987-06-24 | Developing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2523929Y2 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS539541A (en) * | 1976-07-14 | 1978-01-28 | Ricoh Co Ltd | Electrophotographic copier |
| JPS54120864A (en) * | 1978-03-10 | 1979-09-19 | Hitachi Metals Ltd | Longgsized solid magnet roll* method of producing same and development method employing same |
| JPS57160161U (en) * | 1981-04-03 | 1982-10-07 | ||
| JPS59166977A (en) * | 1983-03-14 | 1984-09-20 | Matsushita Electric Ind Co Ltd | Manufacturing method of magnet roll |
| JPS61154016A (en) * | 1984-12-26 | 1986-07-12 | Yamauchi Rubber Ind Co Ltd | Magnet roll for magnetic brush |
| JPS61212869A (en) * | 1985-03-19 | 1986-09-20 | Canon Inc | developing device |
-
1987
- 1987-06-24 JP JP1987095960U patent/JP2523929Y2/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS539541A (en) * | 1976-07-14 | 1978-01-28 | Ricoh Co Ltd | Electrophotographic copier |
| JPS54120864A (en) * | 1978-03-10 | 1979-09-19 | Hitachi Metals Ltd | Longgsized solid magnet roll* method of producing same and development method employing same |
| JPS57160161U (en) * | 1981-04-03 | 1982-10-07 | ||
| JPS59166977A (en) * | 1983-03-14 | 1984-09-20 | Matsushita Electric Ind Co Ltd | Manufacturing method of magnet roll |
| JPS61154016A (en) * | 1984-12-26 | 1986-07-12 | Yamauchi Rubber Ind Co Ltd | Magnet roll for magnetic brush |
| JPS61212869A (en) * | 1985-03-19 | 1986-09-20 | Canon Inc | developing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2523929Y2 (en) | 1997-01-29 |