JPS5492242A - Positive chargeability carrier - Google Patents
Positive chargeability carrierInfo
- Publication number
- JPS5492242A JPS5492242A JP16069077A JP16069077A JPS5492242A JP S5492242 A JPS5492242 A JP S5492242A JP 16069077 A JP16069077 A JP 16069077A JP 16069077 A JP16069077 A JP 16069077A JP S5492242 A JPS5492242 A JP S5492242A
- Authority
- JP
- Japan
- Prior art keywords
- chargeable
- negatively
- latent image
- positively
- image forming
- 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
Abstract
PURPOSE: To enable alleviation of abrasion of a latent image forming medium as well as prevention of deterioration in latent image intensity of a negatively friction- chargeable latent image forming medium, by providing a specified resin cover on magnetic particles.
CONSTITUTION: Polyamideimide, urea resin, or polyurethane is dissolved in a proper solvent, and positively chargeable carriers of magnetic particles having 0.1W1.5 μ resin covers are formed by a rotary drying method. When positive development is effected by uniform positively charging corona discharge using a negatively chargeable toner on a negatively friction-chargeable latent image forming medium, such as ZnO type photoconductor, the positively chargeable carrier negatively charges the toner, and the medium is rubbed by a slightly negatively chargeable developer consisting of a mixture of the negatively chargeable toner and the positively chargeable carrier, therefore permitting latent image intensity to be little deteriorated in development.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52160690A JPS6033267B2 (en) | 1977-12-28 | 1977-12-28 | Positively chargeable carrier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP52160690A JPS6033267B2 (en) | 1977-12-28 | 1977-12-28 | Positively chargeable carrier |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5492242A true JPS5492242A (en) | 1979-07-21 |
JPS6033267B2 JPS6033267B2 (en) | 1985-08-01 |
Family
ID=15720350
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP52160690A Expired JPS6033267B2 (en) | 1977-12-28 | 1977-12-28 | Positively chargeable carrier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6033267B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015175996A (en) * | 2014-03-14 | 2015-10-05 | パウダーテック株式会社 | Resin-coated ferrite carrier for electrophotographic developer, and electrophotographic developer using resin-coated ferrite carrier |
-
1977
- 1977-12-28 JP JP52160690A patent/JPS6033267B2/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2015175996A (en) * | 2014-03-14 | 2015-10-05 | パウダーテック株式会社 | Resin-coated ferrite carrier for electrophotographic developer, and electrophotographic developer using resin-coated ferrite carrier |
Also Published As
Publication number | Publication date |
---|---|
JPS6033267B2 (en) | 1985-08-01 |
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