JPS546561A - Developer concentration controller - Google Patents

Developer concentration controller

Info

Publication number
JPS546561A
JPS546561A JP7148477A JP7148477A JPS546561A JP S546561 A JPS546561 A JP S546561A JP 7148477 A JP7148477 A JP 7148477A JP 7148477 A JP7148477 A JP 7148477A JP S546561 A JPS546561 A JP S546561A
Authority
JP
Japan
Prior art keywords
developer concentration
concentration controller
developer
reflectivity
temp
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.)
Granted
Application number
JP7148477A
Other languages
Japanese (ja)
Other versions
JPS563552B2 (en
Inventor
Kiyoshi Tsuboi
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP7148477A priority Critical patent/JPS546561A/en
Publication of JPS546561A publication Critical patent/JPS546561A/en
Publication of JPS563552B2 publication Critical patent/JPS563552B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE:To keep developer concentration constant and to retain image quality stable irrespective of the density of an original and temp. change, by irradiating with light the part to be measured and the reference part of a rotary body rotating in contact to the developer, and by detecting transmissivity or reflectivity of them.
JP7148477A 1977-06-16 1977-06-16 Developer concentration controller Granted JPS546561A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7148477A JPS546561A (en) 1977-06-16 1977-06-16 Developer concentration controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7148477A JPS546561A (en) 1977-06-16 1977-06-16 Developer concentration controller

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP16281081A Division JPS5794765A (en) 1981-10-14 1981-10-14 Concentration controller of developer

Publications (2)

Publication Number Publication Date
JPS546561A true JPS546561A (en) 1979-01-18
JPS563552B2 JPS563552B2 (en) 1981-01-26

Family

ID=13461958

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7148477A Granted JPS546561A (en) 1977-06-16 1977-06-16 Developer concentration controller

Country Status (1)

Country Link
JP (1) JPS546561A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55127573A (en) * 1979-03-26 1980-10-02 Fuji Xerox Co Ltd Gain adjusting method of toner image detector in electrophotographic copier
JPS55127571A (en) * 1979-03-26 1980-10-02 Fuji Xerox Co Ltd Control method of electrophotographic copier
US4341461A (en) * 1980-04-07 1982-07-27 Xerox Corporation Development control of a reproduction machine
JPH026970A (en) * 1988-11-14 1990-01-11 Fuji Xerox Co Ltd Control method for electronic copying machine
US4998141A (en) * 1990-08-31 1991-03-05 Eastman Kodak Company Electret toner concentration monitor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4869527A (en) * 1971-12-17 1973-09-21
JPS4916650A (en) * 1972-06-07 1974-02-14
JPS5233734A (en) * 1975-09-10 1977-03-15 Canon Inc Device for detecting and controlling density

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4869527A (en) * 1971-12-17 1973-09-21
JPS4916650A (en) * 1972-06-07 1974-02-14
JPS5233734A (en) * 1975-09-10 1977-03-15 Canon Inc Device for detecting and controlling density

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55127573A (en) * 1979-03-26 1980-10-02 Fuji Xerox Co Ltd Gain adjusting method of toner image detector in electrophotographic copier
JPS55127571A (en) * 1979-03-26 1980-10-02 Fuji Xerox Co Ltd Control method of electrophotographic copier
JPH0313585B2 (en) * 1979-03-26 1991-02-22 Fuji Xerox Co Ltd
JPH0314186B2 (en) * 1979-03-26 1991-02-26 Fuji Xerox Co Ltd
US4341461A (en) * 1980-04-07 1982-07-27 Xerox Corporation Development control of a reproduction machine
JPH026970A (en) * 1988-11-14 1990-01-11 Fuji Xerox Co Ltd Control method for electronic copying machine
JPH0529908B2 (en) * 1988-11-14 1993-05-06 Fuji Xerox Co Ltd
US4998141A (en) * 1990-08-31 1991-03-05 Eastman Kodak Company Electret toner concentration monitor

Also Published As

Publication number Publication date
JPS563552B2 (en) 1981-01-26

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