JPS5485036A - Developing device of electrostatic latent images - Google Patents
Developing device of electrostatic latent imagesInfo
- Publication number
- JPS5485036A JPS5485036A JP15342677A JP15342677A JPS5485036A JP S5485036 A JPS5485036 A JP S5485036A JP 15342677 A JP15342677 A JP 15342677A JP 15342677 A JP15342677 A JP 15342677A JP S5485036 A JPS5485036 A JP S5485036A
- Authority
- JP
- Japan
- Prior art keywords
- doctor
- hopper
- way
- toner
- 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
Landscapes
- Magnetic Brush Developing In Electrophotography (AREA)
- Dry Development In Electrophotography (AREA)
Abstract
PURPOSE:To perform friction charging or charge injection to toner evenly over the entrire part by providing two doctor members between toner feed member and developing part and making one of them movable. CONSTITUTION:A first doctor 12 which is fixed to hopper side wall 10 by way of an insulator 11 is supported to the outlet side of a hopper 9 and a movable second doctor 14 on the opposite side thereof by way of an insulator 13. Then, the specified volume of toner T delivered out from the hopper 9 at the developing is defined to the initial delivery quantity by the first doctor 12, and is charged to the specified polarity, after which it is defined to the final thickness by the second doctor 14 from the relation of d2<d1 and is friction charged, thence it is contacted to a photosensitive drum 5 by way of a developing roller 6, whereby electrostatic latent images are turned to visible images. While not in development, the second doctor 14 is pulled up to the arrow (a) direction.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15342677A JPS5485036A (en) | 1977-12-20 | 1977-12-20 | Developing device of electrostatic latent images |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15342677A JPS5485036A (en) | 1977-12-20 | 1977-12-20 | Developing device of electrostatic latent images |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5485036A true JPS5485036A (en) | 1979-07-06 |
Family
ID=15562243
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15342677A Pending JPS5485036A (en) | 1977-12-20 | 1977-12-20 | Developing device of electrostatic latent images |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5485036A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57180352U (en) * | 1981-05-11 | 1982-11-16 | ||
JPS599677A (en) * | 1982-07-03 | 1984-01-19 | ディベロップ・ドクトル・アイスバイン・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング・ウント・コンパニ− | Developer for copying machine or the like |
JPH01140565U (en) * | 1988-03-19 | 1989-09-26 | ||
DE19819390A1 (en) * | 1997-07-03 | 1999-01-07 | Heidelberger Druckmasch Ag | Developing electrostatic latent image on image carrier with single component insulative toner |
-
1977
- 1977-12-20 JP JP15342677A patent/JPS5485036A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57180352U (en) * | 1981-05-11 | 1982-11-16 | ||
JPS599677A (en) * | 1982-07-03 | 1984-01-19 | ディベロップ・ドクトル・アイスバイン・ゲゼルシャフト・ミット・ベシュレンクテル・ハフツング・ウント・コンパニ− | Developer for copying machine or the like |
JPH0342477B2 (en) * | 1982-07-03 | 1991-06-27 | ||
JPH01140565U (en) * | 1988-03-19 | 1989-09-26 | ||
DE19819390A1 (en) * | 1997-07-03 | 1999-01-07 | Heidelberger Druckmasch Ag | Developing electrostatic latent image on image carrier with single component insulative toner |
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