JPS5584959A - Powder feeder - Google Patents

Powder feeder

Info

Publication number
JPS5584959A
JPS5584959A JP16055578A JP16055578A JPS5584959A JP S5584959 A JPS5584959 A JP S5584959A JP 16055578 A JP16055578 A JP 16055578A JP 16055578 A JP16055578 A JP 16055578A JP S5584959 A JPS5584959 A JP S5584959A
Authority
JP
Japan
Prior art keywords
powder
spring
layer thickness
developer
developing roller
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
JP16055578A
Other languages
Japanese (ja)
Inventor
Takashi Yano
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP16055578A priority Critical patent/JPS5584959A/en
Publication of JPS5584959A publication Critical patent/JPS5584959A/en
Pending legal-status Critical Current

Links

Landscapes

  • Magnetic Brush Developing In Electrophotography (AREA)
  • Dry Development In Electrophotography (AREA)

Abstract

PURPOSE:To let powder be sufficiently replenished and deposited to a powder carrier roller by specifying the constitution of a powder backing member. CONSTITUTION:A powder backing member 13 integrally formed with a powder layer thickness defining member 15 at one end is formed in bow form and is held energized by a spring 12 to the developing roller 10 side. Also, the powder layer thickness defining member 15 is energized to the developing roller 10 side by a spring 14. As a result of this, the storage portion which keeps developer 9 in storage by the backing member 13 and the pressing portion for pressing the developer to the developing roller 10 are substantially separated and the replenishment and deposition of the developer 9 to the developing roller 10 are always sufficiently accomplished by either force of the wedge effect by the bow shape and the pressing force by the spring 12. Further, the powder layer thickness defining member 15 maintains the constant developer layer thickness on the latent image carrier 8 by the action of the spring 14 irrespective to the displacement of the member 13.
JP16055578A 1978-12-21 1978-12-21 Powder feeder Pending JPS5584959A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16055578A JPS5584959A (en) 1978-12-21 1978-12-21 Powder feeder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16055578A JPS5584959A (en) 1978-12-21 1978-12-21 Powder feeder

Publications (1)

Publication Number Publication Date
JPS5584959A true JPS5584959A (en) 1980-06-26

Family

ID=15717514

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16055578A Pending JPS5584959A (en) 1978-12-21 1978-12-21 Powder feeder

Country Status (1)

Country Link
JP (1) JPS5584959A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6051850A (en) * 1983-08-31 1985-03-23 Toshiba Corp Developing device
JPS6051856A (en) * 1983-08-31 1985-03-23 Toshiba Corp Developing device
JPS6078467A (en) * 1983-10-05 1985-05-04 Ricoh Co Ltd Developing device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6051850A (en) * 1983-08-31 1985-03-23 Toshiba Corp Developing device
JPS6051856A (en) * 1983-08-31 1985-03-23 Toshiba Corp Developing device
JPS6078467A (en) * 1983-10-05 1985-05-04 Ricoh Co Ltd Developing device

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