JPS647068A - Electrostatic latent image developing device - Google Patents

Electrostatic latent image developing device

Info

Publication number
JPS647068A
JPS647068A JP62164206A JP16420687A JPS647068A JP S647068 A JPS647068 A JP S647068A JP 62164206 A JP62164206 A JP 62164206A JP 16420687 A JP16420687 A JP 16420687A JP S647068 A JPS647068 A JP S647068A
Authority
JP
Japan
Prior art keywords
latent image
electrostatic latent
developing device
upstream
image carrier
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
JP62164206A
Other languages
Japanese (ja)
Inventor
Kenju Oka
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.)
Minolta Co Ltd
Original Assignee
Minolta 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 Minolta Co Ltd filed Critical Minolta Co Ltd
Priority to JP62164206A priority Critical patent/JPS647068A/en
Publication of JPS647068A publication Critical patent/JPS647068A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To prevent toner from scattering upstream in the moving direction of the surface of an electrostatic latent image carrier by simple constitution by switching a seal member between a position where its tip contacts the surface of the electrostatic latent image carrier and a noncontact position by the same driving source with an operation-nonoperation switching means for a developing device. CONSTITUTION:Insulating seal members 54 and 64 are provided on the upstream sides of the development areas of developing devices 5 and 6 on the downstream sides of a developing device 4 positioned on the most upstream side in the moving direction of the surface of the electrostatic latent image carrier 1 so that they can be switched between the positions where their tips contact the surface of the electrostatic latent image carrier 1 and noncontact positions. Single driving sources 53 and 63 serve as both operation-nonoperation switching means for the developing devices 5 and 6 and switching means for the positions of the seal members 54 and 64. Then the selected developing device 5 switches the seal member 54 to its contact position while entering an operation state to prevent powder toner from scattering upstream. The developing device 6 which is not selected, on the other hand, switches the seal member 64 to its noncontact position while entering a nonoperation state. Consequently, the toner is prevented from scattering upstream.
JP62164206A 1987-06-30 1987-06-30 Electrostatic latent image developing device Pending JPS647068A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62164206A JPS647068A (en) 1987-06-30 1987-06-30 Electrostatic latent image developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62164206A JPS647068A (en) 1987-06-30 1987-06-30 Electrostatic latent image developing device

Publications (1)

Publication Number Publication Date
JPS647068A true JPS647068A (en) 1989-01-11

Family

ID=15788682

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62164206A Pending JPS647068A (en) 1987-06-30 1987-06-30 Electrostatic latent image developing device

Country Status (1)

Country Link
JP (1) JPS647068A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5652277A (en) * 1992-12-22 1997-07-29 Reedy International Corporation Process for producing alkenyl aromatic foams using a combination of atmospheric and organic gases and foams produced thereby

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5652277A (en) * 1992-12-22 1997-07-29 Reedy International Corporation Process for producing alkenyl aromatic foams using a combination of atmospheric and organic gases and foams produced thereby

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