JPS57197568A - Recorder - Google Patents
RecorderInfo
- Publication number
- JPS57197568A JPS57197568A JP56082073A JP8207381A JPS57197568A JP S57197568 A JPS57197568 A JP S57197568A JP 56082073 A JP56082073 A JP 56082073A JP 8207381 A JP8207381 A JP 8207381A JP S57197568 A JPS57197568 A JP S57197568A
- Authority
- JP
- Japan
- Prior art keywords
- toner
- charge
- specific charge
- dielectric constant
- positive
- 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
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G13/00—Electrographic processes using a charge pattern
- G03G13/01—Electrographic processes using a charge pattern for multicoloured copies
- G03G13/013—Electrographic processes using a charge pattern for multicoloured copies characterised by the developing step, e.g. the properties of the colour developers
Abstract
PURPOSE:To perform excellent color picture transferring by using a toner having a value of specific charge of the toner is almost made uniform with the precharge before transferring, independently of the types of the toner supplies for the formation of reproduced image. CONSTITUTION:For example, a toner having greater dielectric constant than that of a positive toner is used for a negative toner. When a toner with 11.4 of dielectric constant is used, the specific charge of the toner is 27muO/g by performing the positive pre-charge, allowing to arrange the specific charge almost with that of the positive toner. Thus, the specific charge of both the toners can be made uniform by increasing the dielectric constant of the toner the polarity of which is inverted at the pre-charge process than that of the other toner, allowing to uniform the transfer of the toner image. Further, since the transfer becomes difficult if the toner specific charge >=40muO/g, the specific charge is used at <=40muO/g even under the pre-charge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56082073A JPS57197568A (en) | 1981-05-29 | 1981-05-29 | Recorder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56082073A JPS57197568A (en) | 1981-05-29 | 1981-05-29 | Recorder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57197568A true JPS57197568A (en) | 1982-12-03 |
| JPH0140348B2 JPH0140348B2 (en) | 1989-08-28 |
Family
ID=13764295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56082073A Granted JPS57197568A (en) | 1981-05-29 | 1981-05-29 | Recorder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57197568A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6388571A (en) * | 1986-10-02 | 1988-04-19 | Matsushita Electric Ind Co Ltd | Color electrophotographic method |
| JPH03146959A (en) * | 1989-11-02 | 1991-06-21 | Fuji Xerox Co Ltd | Dichroic electrophotographiing method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5517143A (en) * | 1978-07-21 | 1980-02-06 | Nec Corp | Two color recording method |
-
1981
- 1981-05-29 JP JP56082073A patent/JPS57197568A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5517143A (en) * | 1978-07-21 | 1980-02-06 | Nec Corp | Two color recording method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6388571A (en) * | 1986-10-02 | 1988-04-19 | Matsushita Electric Ind Co Ltd | Color electrophotographic method |
| JPH03146959A (en) * | 1989-11-02 | 1991-06-21 | Fuji Xerox Co Ltd | Dichroic electrophotographiing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0140348B2 (en) | 1989-08-28 |
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