JPS6413570A - Image forming device - Google Patents

Image forming device

Info

Publication number
JPS6413570A
JPS6413570A JP62170710A JP17071087A JPS6413570A JP S6413570 A JPS6413570 A JP S6413570A JP 62170710 A JP62170710 A JP 62170710A JP 17071087 A JP17071087 A JP 17071087A JP S6413570 A JPS6413570 A JP S6413570A
Authority
JP
Japan
Prior art keywords
image
component
carrier
adjusting
developer
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
JP62170710A
Other languages
Japanese (ja)
Inventor
Tokuji Kaneko
Yoshio Mizuno
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 JP62170710A priority Critical patent/JPS6413570A/en
Publication of JPS6413570A publication Critical patent/JPS6413570A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To prevent not only the toner component but also the carrier component of a two component type developer from attracted from a developer carrying member to an image carrier by adjusting an output from an image erasion means in a proper value according to the density of given original image information. CONSTITUTION:An original density detecting means, that is, a photosensor 30 is provided on a scanning mirror 3c side near a zoom lens 4 and on an optical path. The image erasion means is constituted of an image erasing lamp 7 and a frame erasing lamp 9. Moreover, an adjusting means for adjusting the light quantity of blank exposure radiated from the frame erasing lamp 9 based on an output signal from an image density reader 200, that is, an output adjusting device 210 is provided. Thus, not only the toner component but also the carrier component of the developer can be prevented from attracted from a developing sleeve 11a to a photosensitive body drum 5 in case of using the two component type developer having the toner and the carrier.
JP62170710A 1987-07-08 1987-07-08 Image forming device Pending JPS6413570A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62170710A JPS6413570A (en) 1987-07-08 1987-07-08 Image forming device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62170710A JPS6413570A (en) 1987-07-08 1987-07-08 Image forming device

Publications (1)

Publication Number Publication Date
JPS6413570A true JPS6413570A (en) 1989-01-18

Family

ID=15909965

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62170710A Pending JPS6413570A (en) 1987-07-08 1987-07-08 Image forming device

Country Status (1)

Country Link
JP (1) JPS6413570A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6249375A (en) * 1985-08-28 1987-03-04 Matsushita Graphic Commun Syst Inc Electrophotographic device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6249375A (en) * 1985-08-28 1987-03-04 Matsushita Graphic Commun Syst Inc Electrophotographic device

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