JPS5463831A - Electrostatic image carrying toner - Google Patents

Electrostatic image carrying toner

Info

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
Application number
JP13126577A
Other languages
Japanese (ja)
Inventor
Tetsuo Hasegawa
Shigeo Kato
Yoshihiro Nishikawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Canon Inc
Original Assignee
Canon Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP13126577A priority Critical patent/JPS5463831A/en
Publication of JPS5463831A publication Critical patent/JPS5463831A/en
Pending legal-status Critical Current

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  • 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
JP13126577A 1977-10-31 1977-10-31 Electrostatic image carrying toner Pending JPS5463831A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (3)

* Cited by examiner, † Cited by third party
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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