JPS5390940A - Method and device for detecting toner amount on photo-sensitive body - Google Patents

Method and device for detecting toner amount on photo-sensitive body

Info

Publication number
JPS5390940A
JPS5390940A JP563177A JP563177A JPS5390940A JP S5390940 A JPS5390940 A JP S5390940A JP 563177 A JP563177 A JP 563177A JP 563177 A JP563177 A JP 563177A JP S5390940 A JPS5390940 A JP S5390940A
Authority
JP
Japan
Prior art keywords
photo
sensitive body
toner amount
detecting 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.)
Pending
Application number
JP563177A
Other languages
Japanese (ja)
Inventor
Koji Sakamoto
Seiichi Miyagawa
Susumu Tatsumi
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 JP563177A priority Critical patent/JPS5390940A/en
Publication of JPS5390940A publication Critical patent/JPS5390940A/en
Pending legal-status Critical Current

Links

Landscapes

  • Dry Development In Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE:To determine the density and degree of deterioration of a developing agent by irradiating toner which adheres on the surface of a photo-sensitive body with light after the development, measuring an electric potential of the portion of the photo-sensitive body surface after the development and irradiation, and detecting the amount of toner which adheres on the body from the difference of the potential.
JP563177A 1977-01-20 1977-01-20 Method and device for detecting toner amount on photo-sensitive body Pending JPS5390940A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP563177A JPS5390940A (en) 1977-01-20 1977-01-20 Method and device for detecting toner amount on photo-sensitive body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP563177A JPS5390940A (en) 1977-01-20 1977-01-20 Method and device for detecting toner amount on photo-sensitive body

Publications (1)

Publication Number Publication Date
JPS5390940A true JPS5390940A (en) 1978-08-10

Family

ID=11616491

Family Applications (1)

Application Number Title Priority Date Filing Date
JP563177A Pending JPS5390940A (en) 1977-01-20 1977-01-20 Method and device for detecting toner amount on photo-sensitive body

Country Status (1)

Country Link
JP (1) JPS5390940A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57173865A (en) * 1981-04-21 1982-10-26 Fuji Xerox Co Ltd Picture density controller of electronic copier
JPH03153278A (en) * 1989-11-10 1991-07-01 Matsushita Electric Ind Co Ltd Electrostatic recorder

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57173865A (en) * 1981-04-21 1982-10-26 Fuji Xerox Co Ltd Picture density controller of electronic copier
JPH0241752B2 (en) * 1981-04-21 1990-09-19
JPH03153278A (en) * 1989-11-10 1991-07-01 Matsushita Electric Ind Co Ltd Electrostatic recorder

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