JPS54115245A - Developing device of electrostatic latent images - Google Patents

Developing device of electrostatic latent images

Info

Publication number
JPS54115245A
JPS54115245A JP2248178A JP2248178A JPS54115245A JP S54115245 A JPS54115245 A JP S54115245A JP 2248178 A JP2248178 A JP 2248178A JP 2248178 A JP2248178 A JP 2248178A JP S54115245 A JPS54115245 A JP S54115245A
Authority
JP
Japan
Prior art keywords
toner
electrodes
electrostatic latent
charging
latent image
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
JP2248178A
Other languages
Japanese (ja)
Other versions
JPS623949B2 (en
Inventor
Teruyuki Onuma
Seiichi Miyagawa
Hajime Koyama
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 JP2248178A priority Critical patent/JPS54115245A/en
Publication of JPS54115245A publication Critical patent/JPS54115245A/en
Publication of JPS623949B2 publication Critical patent/JPS623949B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE:To increase the charging efficiency of toner and perform good developing by so arranging the device that the electric resistance from charging electrodes down to the ground via developing roller surface is smaller than the electric resistance between the electrostatic latent image carrier making contact to developer and the charging electrodes. CONSTITUTION:A toner doner 10 which has an endless surface consists of a grounded conductive substrate 11 and a conductive layer 12 and a toner layer 13 is formed thereon. An electrostatic latent image carrier 16 is guided by a revolving roller 17 so as to make contact to this toner layer 13. Since these are so constituted and disposed that the electric resistance from the two electrodes 14, 15 for charging the toner through the points C, B of the contact respectively thereof to the toner down to the ground is smaller than the electric reistance from the point A of contact between the electrostatic latent image carrier 16 and the toner up to the electrodes 14, 15, the currents flowing from the electrodes 14, 15 fully effectively flow to the conductive substrate 12, thus the charging efficiency of the toner is improved.
JP2248178A 1978-02-28 1978-02-28 Developing device of electrostatic latent images Granted JPS54115245A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2248178A JPS54115245A (en) 1978-02-28 1978-02-28 Developing device of electrostatic latent images

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2248178A JPS54115245A (en) 1978-02-28 1978-02-28 Developing device of electrostatic latent images

Publications (2)

Publication Number Publication Date
JPS54115245A true JPS54115245A (en) 1979-09-07
JPS623949B2 JPS623949B2 (en) 1987-01-28

Family

ID=12083900

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2248178A Granted JPS54115245A (en) 1978-02-28 1978-02-28 Developing device of electrostatic latent images

Country Status (1)

Country Link
JP (1) JPS54115245A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5669669A (en) * 1979-11-13 1981-06-11 Toshiba Corp One component developing apparatus
JPS56110964A (en) * 1980-02-06 1981-09-02 Toshiba Corp Developing device
JPS63100482A (en) * 1986-02-19 1988-05-02 Ricoh Co Ltd Toner carrier
JPH01252979A (en) * 1988-03-31 1989-10-09 Toshiba Corp Developing device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5669669A (en) * 1979-11-13 1981-06-11 Toshiba Corp One component developing apparatus
JPS56110964A (en) * 1980-02-06 1981-09-02 Toshiba Corp Developing device
JPH0321906B2 (en) * 1980-02-06 1991-03-25 Tokyo Shibaura Electric Co
JPS63100482A (en) * 1986-02-19 1988-05-02 Ricoh Co Ltd Toner carrier
JPH01252979A (en) * 1988-03-31 1989-10-09 Toshiba Corp Developing device

Also Published As

Publication number Publication date
JPS623949B2 (en) 1987-01-28

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