JPS5654446A - Developer for reversal development - Google Patents

Developer for reversal development

Info

Publication number
JPS5654446A
JPS5654446A JP13033979A JP13033979A JPS5654446A JP S5654446 A JPS5654446 A JP S5654446A JP 13033979 A JP13033979 A JP 13033979A JP 13033979 A JP13033979 A JP 13033979A JP S5654446 A JPS5654446 A JP S5654446A
Authority
JP
Japan
Prior art keywords
carrier
particle diameter
toner
triaminotriphenylmethane
100pts
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
JP13033979A
Other languages
Japanese (ja)
Inventor
Michinosuke Fujiki
Heihachi Yushina
Hisao Kosugi
Yukihiro Sato
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.)
Mitsubishi Kasei Corp
Original Assignee
Mitsubishi Kasei Corp
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 Mitsubishi Kasei Corp filed Critical Mitsubishi Kasei Corp
Priority to JP13033979A priority Critical patent/JPS5654446A/en
Publication of JPS5654446A publication Critical patent/JPS5654446A/en
Pending legal-status Critical Current

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  • Developing Agents For Electrophotography (AREA)

Abstract

PURPOSE: To prevent whitening, uneven density, or the like on a reversal developed image, by using as a carrier a spherical iron powder having a specified mean particle diameter and volume resistivity, and a toner containing a triaminotriphenylmethane type dye as a charge controller.
CONSTITUTION: A spherical iron powder used as a carrier has a volume resistivitity of 1×107W1×1011Ω.cm and a particle diameter of 80W180μm. A toner consists of 100pts.wt. resin, 3W20wt.pts. carbon black, and 1W20pts.wt. triaminotriphenylmethane type dye, and has 5W20μm means particle diameter. A developer used consists of 100pts.wt. said carrier and 0.5W3pts.wt. said toner has a charge quantity ≤μC/g, preferably 5W25μC/g by a specified measuring method. As a result, a superior reversal image having sufficient image density and prevented from carrier separation or the like.
COPYRIGHT: (C)1981,JPO&Japio
JP13033979A 1979-10-09 1979-10-09 Developer for reversal development Pending JPS5654446A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13033979A JPS5654446A (en) 1979-10-09 1979-10-09 Developer for reversal development

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13033979A JPS5654446A (en) 1979-10-09 1979-10-09 Developer for reversal development

Publications (1)

Publication Number Publication Date
JPS5654446A true JPS5654446A (en) 1981-05-14

Family

ID=15032005

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13033979A Pending JPS5654446A (en) 1979-10-09 1979-10-09 Developer for reversal development

Country Status (1)

Country Link
JP (1) JPS5654446A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6026152A (en) * 1983-07-22 1985-02-09 Sanshin Ind Co Ltd Fuel feeder of 2-cycle internal-combustion engine for outboard motor

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5111455A (en) * 1974-07-19 1976-01-29 Ricoh Kk
JPS5372627A (en) * 1976-12-10 1978-06-28 Hitachi Ltd Developing agent and reversal development

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5111455A (en) * 1974-07-19 1976-01-29 Ricoh Kk
JPS5372627A (en) * 1976-12-10 1978-06-28 Hitachi Ltd Developing agent and reversal development

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6026152A (en) * 1983-07-22 1985-02-09 Sanshin Ind Co Ltd Fuel feeder of 2-cycle internal-combustion engine for outboard motor
JPH0259298B2 (en) * 1983-07-22 1990-12-12 Sanshin Kogyo Kk

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