JPS5473054A - Dry type developer replenishing device - Google Patents

Dry type developer replenishing device

Info

Publication number
JPS5473054A
JPS5473054A JP14138777A JP14138777A JPS5473054A JP S5473054 A JPS5473054 A JP S5473054A JP 14138777 A JP14138777 A JP 14138777A JP 14138777 A JP14138777 A JP 14138777A JP S5473054 A JPS5473054 A JP S5473054A
Authority
JP
Japan
Prior art keywords
magnetic powder
magnetic
vessel
replenishing device
developer replenishing
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
JP14138777A
Other languages
Japanese (ja)
Inventor
Susumu Tanaka
Kenjiyu 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 JP14138777A priority Critical patent/JPS5473054A/en
Priority to US05/863,616 priority patent/US4331757A/en
Priority to DE2758726A priority patent/DE2758726C2/en
Publication of JPS5473054A publication Critical patent/JPS5473054A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To always correspond the rate of replenishment to the rate of consumption by containing the magnetic powder and non-magnetic powder used as developer in separate vessels.
CONSTITUTION: A developer replenishing device A is constituted by vessels 12, 14 and a flocked roller 7. Non-magnetic power is contained in the vessel 12 and magnetic powder 15 in the vessel 14. Then, as the flocked roller 7 rotates, the non- magnetic powder 13 is supplied to the neighborhood of a non-magnetic sleeve 6 and deposits thereon by the friction charging with the magnetic powder 15 having already been attracted to said sleeve 6. Next, it is turned by the rotation of the magnet roller 5 to form a magnetic brush together with the magnetic powder 15 from the vessel 14. While the height thereof is being defined by a doctor plate 2, it makes contact with the electrostatic latent image on a photosensitive drum 1, thereby turning the same to the visible image. Hence, the non-magnetic powder 13 and magnetic powder 15 are replenished according to the rates of their consumption and the degradation in the picture image is prevented.
COPYRIGHT: (C)1979,JPO&Japio
JP14138777A 1976-12-29 1977-11-22 Dry type developer replenishing device Pending JPS5473054A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP14138777A JPS5473054A (en) 1977-11-22 1977-11-22 Dry type developer replenishing device
US05/863,616 US4331757A (en) 1976-12-29 1977-12-23 Dry process developing method and device employed therefore
DE2758726A DE2758726C2 (en) 1976-12-29 1977-12-29 Dry development process and apparatus for carrying out the process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14138777A JPS5473054A (en) 1977-11-22 1977-11-22 Dry type developer replenishing device

Publications (1)

Publication Number Publication Date
JPS5473054A true JPS5473054A (en) 1979-06-12

Family

ID=15290802

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14138777A Pending JPS5473054A (en) 1976-12-29 1977-11-22 Dry type developer replenishing device

Country Status (1)

Country Link
JP (1) JPS5473054A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60263976A (en) * 1984-06-13 1985-12-27 Oki Electric Ind Co Ltd Electrophotograpic developing device
JPS6175372A (en) * 1984-09-20 1986-04-17 Minolta Camera Co Ltd Magnetic brush developing device
JPS63110478A (en) * 1986-10-29 1988-05-14 Hitachi Metals Ltd Developing method
JPH02251875A (en) * 1989-03-24 1990-10-09 Ricoh Co Ltd Developing device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60263976A (en) * 1984-06-13 1985-12-27 Oki Electric Ind Co Ltd Electrophotograpic developing device
JPS6175372A (en) * 1984-09-20 1986-04-17 Minolta Camera Co Ltd Magnetic brush developing device
JPS63110478A (en) * 1986-10-29 1988-05-14 Hitachi Metals Ltd Developing method
JPH02251875A (en) * 1989-03-24 1990-10-09 Ricoh Co Ltd Developing device

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