JPS5511226A - Electrostatic latent image developing method - Google Patents

Electrostatic latent image developing method

Info

Publication number
JPS5511226A
JPS5511226A JP8419078A JP8419078A JPS5511226A JP S5511226 A JPS5511226 A JP S5511226A JP 8419078 A JP8419078 A JP 8419078A JP 8419078 A JP8419078 A JP 8419078A JP S5511226 A JPS5511226 A JP S5511226A
Authority
JP
Japan
Prior art keywords
electrode
rotator
voltage
toner
electrostatic latent
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
JP8419078A
Other languages
Japanese (ja)
Other versions
JPS6217224B2 (en
Inventor
Hiroki Izumi
Seiichi Miyagawa
Teruyuki Onuma
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 JP8419078A priority Critical patent/JPS5511226A/en
Publication of JPS5511226A publication Critical patent/JPS5511226A/en
Publication of JPS6217224B2 publication Critical patent/JPS6217224B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To make toner charge quantity constant despite change in bias voltage by making developing bias voltage variable and changing the voltage to be applied to an electrode in order to maintain the potential difference between a rotator and electrode at a fixed relation.
CONSTITUTION: In the case of a method of developing electrostatic latent images by contacting a voltage-applied electrode 4 to the toner 7 of a rotator 2 and charging the toner 7 to the specified polarity, the surface potential on an electrostatic latent image carrier photosensitive drum 1 is detected with a surface electrometer 9 and according to this the developing bias to be applied to the rotator 2 is changed. At the same time, the voltage to be applied to an electrode 4 is changed so as to maintain the fixed relation of the potential difference between the rotator 2 and electrode 4. Hence, the charge quantity of the toner 7 becomes constant despite the change in the developing bias voltage.
COPYRIGHT: (C)1980,JPO&Japio
JP8419078A 1978-07-11 1978-07-11 Electrostatic latent image developing method Granted JPS5511226A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8419078A JPS5511226A (en) 1978-07-11 1978-07-11 Electrostatic latent image developing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8419078A JPS5511226A (en) 1978-07-11 1978-07-11 Electrostatic latent image developing method

Publications (2)

Publication Number Publication Date
JPS5511226A true JPS5511226A (en) 1980-01-26
JPS6217224B2 JPS6217224B2 (en) 1987-04-16

Family

ID=13823545

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8419078A Granted JPS5511226A (en) 1978-07-11 1978-07-11 Electrostatic latent image developing method

Country Status (1)

Country Link
JP (1) JPS5511226A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4410259A (en) * 1980-03-08 1983-10-18 Mita Industrial Co., Ltd. Apparatus for developing latent electrostatic image
JPS6290570A (en) * 1985-05-02 1987-04-25 ゼロツクス　コ−ポレ−シヨン Measuring device for surface potential
JPH02282762A (en) * 1989-04-25 1990-11-20 Ricoh Co Ltd Electrophotographic copying device
JPH05119607A (en) * 1991-06-24 1993-05-18 Konica Corp Electrifying method for two-component developer

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4410259A (en) * 1980-03-08 1983-10-18 Mita Industrial Co., Ltd. Apparatus for developing latent electrostatic image
JPS6290570A (en) * 1985-05-02 1987-04-25 ゼロツクス　コ−ポレ−シヨン Measuring device for surface potential
JPH02282762A (en) * 1989-04-25 1990-11-20 Ricoh Co Ltd Electrophotographic copying device
JPH05119607A (en) * 1991-06-24 1993-05-18 Konica Corp Electrifying method for two-component developer

Also Published As

Publication number Publication date
JPS6217224B2 (en) 1987-04-16

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