JPS5448561A - Detecting and controlling method of toner contents in developer and apparatus for the same - Google Patents

Detecting and controlling method of toner contents in developer and apparatus for the same

Info

Publication number
JPS5448561A
JPS5448561A JP11327477A JP11327477A JPS5448561A JP S5448561 A JPS5448561 A JP S5448561A JP 11327477 A JP11327477 A JP 11327477A JP 11327477 A JP11327477 A JP 11327477A JP S5448561 A JPS5448561 A JP S5448561A
Authority
JP
Japan
Prior art keywords
developer
toner contents
contents
toner
detecting
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
JP11327477A
Other languages
Japanese (ja)
Other versions
JPS5735461B2 (en
Inventor
Makoto Tomono
Koichi Yamakawa
Katsutoshi Tozawa
Mitsuharu Watanabe
Takeo Nishimura
Ryuhei Kasuya
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.)
Konica Minolta Inc
Original Assignee
Konica Minolta Inc
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 Konica Minolta Inc filed Critical Konica Minolta Inc
Priority to JP11327477A priority Critical patent/JPS5448561A/en
Publication of JPS5448561A publication Critical patent/JPS5448561A/en
Publication of JPS5735461B2 publication Critical patent/JPS5735461B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Dry Development In Electrophotography (AREA)

Abstract

PURPOSE:To accurately control toner contents by electrically detecting the toner contents through the developer layer formed by a magnetic brush method. CONSTITUTION:A developer conveying means 104 disposed on a substrate 101 secured with plural permanent magnets 102 is formed of a non-magnetic and conductive material and an insulation layer 104' is applied on the outer surface thereof. A counter electrode 12 is formed of a conductive material. Then, when the developer layer d' formed on the conveying means 104 through relative revolution with the magnet groups 102 contacts the counter elecftrode 12, then the bias voltage from a bias power surce 11 flows to the counter electrode 12 through the developer layer d', and isthen compared with a reference voltage in a comparing control circuit 14, whereby the toner contents are electrically accurately detected.
JP11327477A 1977-09-22 1977-09-22 Detecting and controlling method of toner contents in developer and apparatus for the same Granted JPS5448561A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11327477A JPS5448561A (en) 1977-09-22 1977-09-22 Detecting and controlling method of toner contents in developer and apparatus for the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11327477A JPS5448561A (en) 1977-09-22 1977-09-22 Detecting and controlling method of toner contents in developer and apparatus for the same

Publications (2)

Publication Number Publication Date
JPS5448561A true JPS5448561A (en) 1979-04-17
JPS5735461B2 JPS5735461B2 (en) 1982-07-29

Family

ID=14608011

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11327477A Granted JPS5448561A (en) 1977-09-22 1977-09-22 Detecting and controlling method of toner contents in developer and apparatus for the same

Country Status (1)

Country Link
JP (1) JPS5448561A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01125856U (en) * 1988-02-19 1989-08-28

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50122277A (en) * 1974-02-28 1975-09-25
JPS516730A (en) * 1974-07-09 1976-01-20 Konishiroku Photo Ind DENSHISHASHIN FUKUSHAHONIOKERU GENZOHOHO

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50122277A (en) * 1974-02-28 1975-09-25
JPS516730A (en) * 1974-07-09 1976-01-20 Konishiroku Photo Ind DENSHISHASHIN FUKUSHAHONIOKERU GENZOHOHO

Also Published As

Publication number Publication date
JPS5735461B2 (en) 1982-07-29

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