JPS55157769A - Developing method of electrostatic latent image - Google Patents
Developing method of electrostatic latent imageInfo
- Publication number
- JPS55157769A JPS55157769A JP6578379A JP6578379A JPS55157769A JP S55157769 A JPS55157769 A JP S55157769A JP 6578379 A JP6578379 A JP 6578379A JP 6578379 A JP6578379 A JP 6578379A JP S55157769 A JPS55157769 A JP S55157769A
- Authority
- JP
- Japan
- Prior art keywords
- sleeve
- electrostatic latent
- latent images
- insulator
- bias voltage
- 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)
- Developing For Electrophotography (AREA)
Abstract
PURPOSE: To obtain the images which are sufficient in image density and free from any photographic fog by coating the portion corresponding to the rear half of the developing contact part on a conductive sleeve by an insulator and applying bias voltage to said sleeve in the development of the electrostatic latent images using high-resistance magentic toners.
CONSTITUTION: The magnetic toners 5 of high resistance move in the direction of the arrow on the surface of a sleeve 3a by the revolution of a magnetic roll 3b. The bias voltage V1 of the polarity opposite from that of electrostatic latent images 2 is applied to the sleeve 3a by an electric power source 6. The electrostatic latent images 2 on a recording medium 1 moving in the right direction first passes the portion of the sleeve 3a not coated with an insulator 4 and in the state that they are held applied with the bias voltage V1 they are developed to the high image density accompanying photographic fogs. Thence, the electrostatic latent images 2 pass the portion of the sleeve 3a coated by the insulator 4, whereby the toner images 7 of high image density having been removed of the photographing fogs are obtained.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6578379A JPS55157769A (en) | 1979-05-28 | 1979-05-28 | Developing method of electrostatic latent image |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6578379A JPS55157769A (en) | 1979-05-28 | 1979-05-28 | Developing method of electrostatic latent image |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55157769A true JPS55157769A (en) | 1980-12-08 |
Family
ID=13296971
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6578379A Pending JPS55157769A (en) | 1979-05-28 | 1979-05-28 | Developing method of electrostatic latent image |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55157769A (en) |
-
1979
- 1979-05-28 JP JP6578379A patent/JPS55157769A/en active Pending
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4521098A (en) | Developing device | |
US4868611A (en) | Highlight color imaging with first image neutralization using a scorotron | |
JPH01189664A (en) | Fringe-free, 3-level image formation | |
JPH024903B2 (en) | ||
JPS55118048A (en) | Method and apparatus for developing | |
GB1240293A (en) | Electrophotographic apparatus and method | |
US4233386A (en) | Method of removing residual toner from surface of photoconductive member for use in electrostatic copying apparatus of the transfer type | |
US3145655A (en) | Equipotential xeroprinting member and process of printing therewith | |
US4288515A (en) | Process for reversal development using inductively chargeable magnetic powdery developer | |
US3819262A (en) | Cleaning means for an overcoated photoconductive surface | |
JPS6343748B2 (en) | ||
JPS6252297B2 (en) | ||
JPS55157769A (en) | Developing method of electrostatic latent image | |
GB1396979A (en) | Process and apparatus of developing electrostatic latent images | |
JPS5614268A (en) | Developing method | |
JPS5937830B2 (en) | Charge latent image developing device | |
JPS5538522A (en) | Electrophotographic type image recording method | |
JPS5532035A (en) | Electrophotographic type plural color electrostatic recording system | |
JPS576873A (en) | Developing method for electrostatic latent image | |
JPS5573058A (en) | Electrostatic latent image developing method | |
JPS57104159A (en) | Toner density detecting method | |
US3958988A (en) | Photoconductors having improved sensitivity by presence of a like polar fields during imaging | |
JPS54121737A (en) | Electrostatic recording method | |
JPS55138766A (en) | Magnetic brush developing method | |
JPH0667492A (en) | Image forming method |