JPS6248227B2 - - Google Patents

Info

Publication number
JPS6248227B2
JPS6248227B2 JP54073742A JP7374279A JPS6248227B2 JP S6248227 B2 JPS6248227 B2 JP S6248227B2 JP 54073742 A JP54073742 A JP 54073742A JP 7374279 A JP7374279 A JP 7374279A JP S6248227 B2 JPS6248227 B2 JP S6248227B2
Authority
JP
Japan
Prior art keywords
color
roller
developing device
color toner
polarity
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.)
Expired
Application number
JP54073742A
Other languages
English (en)
Japanese (ja)
Other versions
JPS55164835A (en
Inventor
Fuyuhiko Matsumoto
Shuichi Tsushima
Shuichi Karasawa
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 JP7374279A priority Critical patent/JPS55164835A/ja
Priority to US06/142,600 priority patent/US4351604A/en
Priority to DE19803016243 priority patent/DE3016243C2/de
Publication of JPS55164835A publication Critical patent/JPS55164835A/ja
Publication of JPS6248227B2 publication Critical patent/JPS6248227B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Magnetic Brush Developing In Electrophotography (AREA)
JP7374279A 1979-04-26 1979-06-12 Developing unit in two-color copying system Granted JPS55164835A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP7374279A JPS55164835A (en) 1979-06-12 1979-06-12 Developing unit in two-color copying system
US06/142,600 US4351604A (en) 1979-04-26 1980-04-22 Multi-color electrostatic copying apparatus
DE19803016243 DE3016243C2 (de) 1979-04-26 1980-04-26 Elektrostatisches Zweifarben-Kopiergerät

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7374279A JPS55164835A (en) 1979-06-12 1979-06-12 Developing unit in two-color copying system

Publications (2)

Publication Number Publication Date
JPS55164835A JPS55164835A (en) 1980-12-22
JPS6248227B2 true JPS6248227B2 (enrdf_load_stackoverflow) 1987-10-13

Family

ID=13526990

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7374279A Granted JPS55164835A (en) 1979-04-26 1979-06-12 Developing unit in two-color copying system

Country Status (1)

Country Link
JP (1) JPS55164835A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS55164835A (en) 1980-12-22

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