JPS5683760A - Two-color developing method - Google Patents

Two-color developing method

Info

Publication number
JPS5683760A
JPS5683760A JP16185179A JP16185179A JPS5683760A JP S5683760 A JPS5683760 A JP S5683760A JP 16185179 A JP16185179 A JP 16185179A JP 16185179 A JP16185179 A JP 16185179A JP S5683760 A JPS5683760 A JP S5683760A
Authority
JP
Japan
Prior art keywords
toner
carrier
well
sticks
latent image
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
JP16185179A
Other languages
Japanese (ja)
Inventor
Junichi Tashiro
Junzo Nakajima
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.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP16185179A priority Critical patent/JPS5683760A/en
Publication of JPS5683760A publication Critical patent/JPS5683760A/en
Pending legal-status Critical Current

Links

Landscapes

  • Dry Development In Electrophotography (AREA)

Abstract

PURPOSE:To decrease the mingling of different color toners and enable good two- color images to be obtained by selecting the 1st toner and the 2nd toner as well as the 2nd toner and the 1st carrier of the surface quality close to that at which static attraction force is negligible in triboelectric charging system. CONSTITUTION:Epoxy-base resins and styrene-base resins are used for the main components of toners T1, T2, respectively, and styrene coated and epoxy coated carriers are used for the main components of carriers C1, C2, respectively. When the toner T1 and the carrier C1, as well as the toner T2 and the carrier C2 are combined and are subjected to triboelectric charging, the toner T is charged positive and the toner T2 negative. If these are mixed and two colors are simultaneously developed, the toner T2 sticks on the latent image of the high level V3 and the toner T1 sticks on the latent image of the low level V1, and this yields the two-color images. Here, the toner T1 and the carrier C2, as well as the toner T2 and the carrier C1 are of the same material, hence they do not develop any mututal attraction force.
JP16185179A 1979-12-13 1979-12-13 Two-color developing method Pending JPS5683760A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16185179A JPS5683760A (en) 1979-12-13 1979-12-13 Two-color developing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16185179A JPS5683760A (en) 1979-12-13 1979-12-13 Two-color developing method

Publications (1)

Publication Number Publication Date
JPS5683760A true JPS5683760A (en) 1981-07-08

Family

ID=15743143

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16185179A Pending JPS5683760A (en) 1979-12-13 1979-12-13 Two-color developing method

Country Status (1)

Country Link
JP (1) JPS5683760A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63123063A (en) * 1986-11-03 1988-05-26 ゼロツクス　コーポレーシヨン Image printer and method by black and several stressed colors with single pass
JPS63172180A (en) * 1986-12-29 1988-07-15 ゼロツクス　コーポレーシヨン Printer
US4948686A (en) * 1989-04-24 1990-08-14 Xerox Corporation Process for forming two-color images
JPH03137660A (en) * 1989-08-03 1991-06-12 Xerox Corp Level printing method and device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63123063A (en) * 1986-11-03 1988-05-26 ゼロツクス　コーポレーシヨン Image printer and method by black and several stressed colors with single pass
JPS63172180A (en) * 1986-12-29 1988-07-15 ゼロツクス　コーポレーシヨン Printer
US4948686A (en) * 1989-04-24 1990-08-14 Xerox Corporation Process for forming two-color images
JPH03137660A (en) * 1989-08-03 1991-06-12 Xerox Corp Level printing method and device

Similar Documents

Publication Publication Date Title
JPS57188061A (en) Electrophotographing device
JPS5624359A (en) Dry type binary developer for two-color electrophotography
JPS5683760A (en) Two-color developing method
JPS5536889A (en) Dichromatic image reproduction method
JPS55124156A (en) Two-color developing method
JPS5538561A (en) High speed multicolor printing system
JPS54109842A (en) Information recorder
JPS52132843A (en) Preparation of developing agent for electrostatic latent image
JPS568165A (en) Electrostatic recording apparatus
JPS5412841A (en) Static charge developing toner
JPS5576360A (en) Dry development system
JPS5436726A (en) Dry type development for zerography
JPS57102674A (en) Electrophotographic copying machine
JPS5652760A (en) Dichromic electrophotographic method
JPS5517143A (en) Two color recording method
JPS57115563A (en) Electronic photographic method
JPS5529845A (en) Photoreceptor for electrophotography
JPS5543532A (en) Two color electrophotographic copying method
JPS5711355A (en) Color developing method
JPS55111953A (en) Dichromatic electrophotographic copying method
JPS55101956A (en) Two-color electrophotographic copying method of multiple sheets
JPS57136659A (en) Toner grain for electrostatic charge latent image development
JPS5287040A (en) Electrophotographic means
JPS54145534A (en) Color electrophotographing method
JPS5720744A (en) Method for dichromic electrophotography