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JPS547382A - Surface potential measuring apparatus - Google Patents

Surface potential measuring apparatus

Info

Publication number
JPS547382A
JPS547382A JP7297977A JP7297977A JPS547382A JP S547382 A JPS547382 A JP S547382A JP 7297977 A JP7297977 A JP 7297977A JP 7297977 A JP7297977 A JP 7297977A JP S547382 A JPS547382 A JP S547382A
Authority
JP
Japan
Prior art keywords
surface potential
measuring apparatus
potential measuring
measured surface
electret
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
JP7297977A
Other languages
Japanese (ja)
Inventor
Seiichi Miyagawa
Koichi Suzuki
Susumu Tatsumi
Koji Sakamoto
Yoshihiro Ogata
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 JP7297977A priority Critical patent/JPS547382A/en
Publication of JPS547382A publication Critical patent/JPS547382A/en
Pending legal-status Critical Current

Links

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  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE: To measure the surface potential with simple adjustment operation and achieve the reduction in size and cost by disposing an electret in opposition to the measured surface and vibrating the same between the measured surface and an earth electrode.
COPYRIGHT: (C)1979,JPO&Japio
JP7297977A 1977-06-20 1977-06-20 Surface potential measuring apparatus Pending JPS547382A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7297977A JPS547382A (en) 1977-06-20 1977-06-20 Surface potential measuring apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7297977A JPS547382A (en) 1977-06-20 1977-06-20 Surface potential measuring apparatus

Publications (1)

Publication Number Publication Date
JPS547382A true JPS547382A (en) 1979-01-20

Family

ID=13505005

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7297977A Pending JPS547382A (en) 1977-06-20 1977-06-20 Surface potential measuring apparatus

Country Status (1)

Country Link
JP (1) JPS547382A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60120267A (en) * 1983-12-02 1985-06-27 Murata Mfg Co Ltd Non-contact type surface potential detecting apparatus
WO2013073207A1 (en) * 2011-11-15 2013-05-23 オムロン株式会社 Surface potential sensor and copying machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60120267A (en) * 1983-12-02 1985-06-27 Murata Mfg Co Ltd Non-contact type surface potential detecting apparatus
WO2013073207A1 (en) * 2011-11-15 2013-05-23 オムロン株式会社 Surface potential sensor and copying machine
JP2013104829A (en) * 2011-11-15 2013-05-30 Omron Corp Surface potential sensor and copier
CN103907029A (en) * 2011-11-15 2014-07-02 欧姆龙株式会社 Surface potential sensor and copying machine

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