JPS5423544A - Dichromatic developing device - Google Patents

Dichromatic developing device

Info

Publication number
JPS5423544A
JPS5423544A JP8834477A JP8834477A JPS5423544A JP S5423544 A JPS5423544 A JP S5423544A JP 8834477 A JP8834477 A JP 8834477A JP 8834477 A JP8834477 A JP 8834477A JP S5423544 A JPS5423544 A JP S5423544A
Authority
JP
Japan
Prior art keywords
dichromatic
developing device
friction
composedof
toners
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
JP8834477A
Other languages
Japanese (ja)
Inventor
Teruyuki Onuma
Seiichi Miyagawa
Nobuo Mochizuki
Hajime Koyama
Yukio Tabata
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.)
Ricoh Co Ltd
Original Assignee
Ricoh Co 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP8834477A priority Critical patent/JPS5423544A/en
Publication of JPS5423544A publication Critical patent/JPS5423544A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make construction simple and i expensive and yet obtain stable images by forming a developer thin-film on the sleeve surface by two kinds of toners of high coercive characteristics which are friction-charged by the friction member composedof a material positioned in the intermediate.
COPYRIGHT: (C)1979,JPO&Japio
JP8834477A 1977-07-25 1977-07-25 Dichromatic developing device Pending JPS5423544A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8834477A JPS5423544A (en) 1977-07-25 1977-07-25 Dichromatic developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8834477A JPS5423544A (en) 1977-07-25 1977-07-25 Dichromatic developing device

Publications (1)

Publication Number Publication Date
JPS5423544A true JPS5423544A (en) 1979-02-22

Family

ID=13940224

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8834477A Pending JPS5423544A (en) 1977-07-25 1977-07-25 Dichromatic developing device

Country Status (1)

Country Link
JP (1) JPS5423544A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57100695A (en) * 1980-12-12 1982-06-22 Panafacom Ltd Address check system for segment
JPS60252369A (en) * 1984-05-29 1985-12-13 Japan Steel Works Ltd:The Developing method of two-color electrophotographic device
JPS61217079A (en) * 1985-03-23 1986-09-26 Matsushita Electric Ind Co Ltd Two-color copying machine
JPH0281A (en) * 1988-09-16 1990-01-05 Konica Corp Developing method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57100695A (en) * 1980-12-12 1982-06-22 Panafacom Ltd Address check system for segment
JPS6327736B2 (en) * 1980-12-12 1988-06-06 Pii Efu Yuu Kk
JPS60252369A (en) * 1984-05-29 1985-12-13 Japan Steel Works Ltd:The Developing method of two-color electrophotographic device
JPS61217079A (en) * 1985-03-23 1986-09-26 Matsushita Electric Ind Co Ltd Two-color copying machine
JPH0281A (en) * 1988-09-16 1990-01-05 Konica Corp Developing method

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