JPS5535307A - Image former - Google Patents

Image former

Info

Publication number
JPS5535307A
JPS5535307A JP10709278A JP10709278A JPS5535307A JP S5535307 A JPS5535307 A JP S5535307A JP 10709278 A JP10709278 A JP 10709278A JP 10709278 A JP10709278 A JP 10709278A JP S5535307 A JPS5535307 A JP S5535307A
Authority
JP
Japan
Prior art keywords
drum
controlling
photosensitive drum
copying
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.)
Granted
Application number
JP10709278A
Other languages
Japanese (ja)
Other versions
JPS6363904B2 (en
Inventor
Tsuneki Inuzuka
Koichi Murakami
Kenji Kurita
Hisashi Sakamaki
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP10709278A priority Critical patent/JPS5535307A/en
Publication of JPS5535307A publication Critical patent/JPS5535307A/en
Publication of JPS6363904B2 publication Critical patent/JPS6363904B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE:To secure the reproducibility of images faithful to the original picture by controlling the preliminary cleaning time at the restrating according to the dwell time after the machine stoppage and detecting and controlling the surface potentials of photosensitive drum. CONSTITUTION:A developer roller 65 ascends and makes contact with a photosensitive drum 47 at the copying and decends and detaches from the same at the standby and dwell time. A cleaning blade 49 recovers excess toner from the surface of the drum 47 as it rotates. When the drum stops suddenly upon jamming of copying operation or other, the liquid developer on the surface of the drum 47 may dry and stick. To cope with such situation, the drum is idled fixed times for the purpose of preliminary cleaning prior to copying work. These operations including the automatic controlling of obtaining a fixed contrast by detecting the surface potentials of the photosensitive drum with a potential sensor are all electronically controlled by a microcomputer so that respective conditions assume always optimum condition.
JP10709278A 1978-09-01 1978-09-01 Image former Granted JPS5535307A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10709278A JPS5535307A (en) 1978-09-01 1978-09-01 Image former

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10709278A JPS5535307A (en) 1978-09-01 1978-09-01 Image former

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP60194585A Division JPS6187186A (en) 1985-09-02 1985-09-02 Image formation device

Publications (2)

Publication Number Publication Date
JPS5535307A true JPS5535307A (en) 1980-03-12
JPS6363904B2 JPS6363904B2 (en) 1988-12-08

Family

ID=14450250

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10709278A Granted JPS5535307A (en) 1978-09-01 1978-09-01 Image former

Country Status (1)

Country Link
JP (1) JPS5535307A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58134665A (en) * 1982-02-04 1983-08-10 Canon Inc Controlling method for image forming device
JPS60156070A (en) * 1984-01-25 1985-08-16 Mita Ind Co Ltd Copying device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50127643A (en) * 1974-02-22 1975-10-07
JPS5295233A (en) * 1976-02-04 1977-08-10 Ricoh Co Ltd Reload system for copying machine
JPS52104230A (en) * 1976-02-25 1977-09-01 Ibm Method of operating document copying apparatus
JPS52119329A (en) * 1976-03-31 1977-10-06 Canon Inc Control of copier and the like
JPS5312616U (en) * 1976-07-15 1978-02-02

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50127643A (en) * 1974-02-22 1975-10-07
JPS5295233A (en) * 1976-02-04 1977-08-10 Ricoh Co Ltd Reload system for copying machine
JPS52104230A (en) * 1976-02-25 1977-09-01 Ibm Method of operating document copying apparatus
JPS52119329A (en) * 1976-03-31 1977-10-06 Canon Inc Control of copier and the like
JPS5312616U (en) * 1976-07-15 1978-02-02

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58134665A (en) * 1982-02-04 1983-08-10 Canon Inc Controlling method for image forming device
JPH0443254B2 (en) * 1982-02-04 1992-07-16 Canon Kk
JPS60156070A (en) * 1984-01-25 1985-08-16 Mita Ind Co Ltd Copying device

Also Published As

Publication number Publication date
JPS6363904B2 (en) 1988-12-08

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