JPS6432276A - Non-contact developing method - Google Patents

Non-contact developing method

Info

Publication number
JPS6432276A
JPS6432276A JP18759787A JP18759787A JPS6432276A JP S6432276 A JPS6432276 A JP S6432276A JP 18759787 A JP18759787 A JP 18759787A JP 18759787 A JP18759787 A JP 18759787A JP S6432276 A JPS6432276 A JP S6432276A
Authority
JP
Japan
Prior art keywords
roller
magnetic
sleeve
control plate
magnetic poles
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
JP18759787A
Other languages
Japanese (ja)
Inventor
Takao Kumasaka
Yuzuru Shimazaki
Shigetaka Fujiwara
Teruaki Mitsuya
Isamu Komatsu
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.)
Koki Holdings Co Ltd
Hitachi Ltd
Original Assignee
Hitachi Ltd
Hitachi Koki 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 Hitachi Ltd, Hitachi Koki Co Ltd filed Critical Hitachi Ltd
Priority to JP18759787A priority Critical patent/JPS6432276A/en
Priority to US07/159,259 priority patent/US4862828A/en
Priority to CA000559959A priority patent/CA1290007C/en
Publication of JPS6432276A publication Critical patent/JPS6432276A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To enlarge a control plate gap and to prevent a developer from clogging by setting a pitch of magnetic poles to 4-11mm, at the time of providing a magnetic roller having a pair of magnetic poles of the N pole and the S pole, and a non-magnetic sleeve for covering said roller, in the vicinity of a photosensitive body on which an electrostatic latent image has been formed. CONSTITUTION:On a photosensitive body 1 on which an electrostatic latent image is formed, a magnet roller 3 surrounded by a non-magnetic sleeve 2 is provided through a control plate 4 having an opening part, and in the rear of this roller 3, a stirring member 7 for mixing a carrier and a toner of a developer is provided. These are surrounded by a case connected to the control plate 4, and in addition to the foregoing, a scraping plate 6, a toner replenishing roller 10, and a toner hopper 11 are provided in the case. Also, to the sleeve 2, a power source 5 is connected, and a magnetic brush tuft 8 is generated on the surface of the sleeve 2. In such constitution, a pitch of the magnetic poles of N and S provided on the roller 3 is prescribed to 4-11mm, and the opening of the control plate 4 can be enlarged.
JP18759787A 1987-02-27 1987-07-29 Non-contact developing method Pending JPS6432276A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP18759787A JPS6432276A (en) 1987-07-29 1987-07-29 Non-contact developing method
US07/159,259 US4862828A (en) 1987-02-27 1988-02-23 Electrophotographic recording method and apparatus with non-contact development
CA000559959A CA1290007C (en) 1987-02-27 1988-02-26 Electrophotographic recording method and apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18759787A JPS6432276A (en) 1987-07-29 1987-07-29 Non-contact developing method

Publications (1)

Publication Number Publication Date
JPS6432276A true JPS6432276A (en) 1989-02-02

Family

ID=16208895

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18759787A Pending JPS6432276A (en) 1987-02-27 1987-07-29 Non-contact developing method

Country Status (1)

Country Link
JP (1) JPS6432276A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60176069A (en) * 1984-02-23 1985-09-10 Konishiroku Photo Ind Co Ltd Developing device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60176069A (en) * 1984-02-23 1985-09-10 Konishiroku Photo Ind Co Ltd Developing device

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