JPS5463831A - Electrostatic image carrying toner - Google Patents
Electrostatic image carrying tonerInfo
- Publication number
- JPS5463831A JPS5463831A JP13126577A JP13126577A JPS5463831A JP S5463831 A JPS5463831 A JP S5463831A JP 13126577 A JP13126577 A JP 13126577A JP 13126577 A JP13126577 A JP 13126577A JP S5463831 A JPS5463831 A JP S5463831A
- Authority
- JP
- Japan
- Prior art keywords
- starch
- toners
- electrostatic image
- image carrying
- carriers
- 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
- Developing Agents For Electrophotography (AREA)
Abstract
PURPOSE: To elongate the life of negative toners in stable polarity by adding starch (or its derivative) as a charge control substance so that the polarity may be controlled to be negative with the use of substantially transparent material.
CONSTITUTION: Electrostatic image carrying toners composed of a toner binder and a coloring agent may preferably contain more than 5 wt.% of starch, oxidized starch or copolymer of starch and graft. As a result, it is possible to eliminate the drawbacks that the level of the frictional charges between carriers and toners is lowered, that the charges inbetween become instable, and that the electric resistance of the carriers is increased to reduce the image density so that a fog generated to lead to the edge effects.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13126577A JPS5463831A (en) | 1977-10-31 | 1977-10-31 | Electrostatic image carrying toner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13126577A JPS5463831A (en) | 1977-10-31 | 1977-10-31 | Electrostatic image carrying toner |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5463831A true JPS5463831A (en) | 1979-05-23 |
Family
ID=15053875
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13126577A Pending JPS5463831A (en) | 1977-10-31 | 1977-10-31 | Electrostatic image carrying toner |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5463831A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6075405A (en) * | 1983-10-01 | 1985-04-27 | Shiseido Co Ltd | Powdery solid cosmetic |
JPH0315079A (en) * | 1989-06-13 | 1991-01-23 | Sanyo Chem Ind Ltd | Electrostatic charge controller |
JP2009230066A (en) * | 2008-03-25 | 2009-10-08 | Casio Electronics Co Ltd | Toner for electrophotography |
-
1977
- 1977-10-31 JP JP13126577A patent/JPS5463831A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6075405A (en) * | 1983-10-01 | 1985-04-27 | Shiseido Co Ltd | Powdery solid cosmetic |
JPH0315079A (en) * | 1989-06-13 | 1991-01-23 | Sanyo Chem Ind Ltd | Electrostatic charge controller |
JP2009230066A (en) * | 2008-03-25 | 2009-10-08 | Casio Electronics Co Ltd | Toner for electrophotography |
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