JPS54159983A - Powder conveyor - Google Patents

Powder conveyor

Info

Publication number
JPS54159983A
JPS54159983A JP6943278A JP6943278A JPS54159983A JP S54159983 A JPS54159983 A JP S54159983A JP 6943278 A JP6943278 A JP 6943278A JP 6943278 A JP6943278 A JP 6943278A JP S54159983 A JPS54159983 A JP S54159983A
Authority
JP
Japan
Prior art keywords
developer
conveyor
conveyed
pitch
screws
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
JP6943278A
Other languages
Japanese (ja)
Inventor
Sakae Ota
Minoru Suzuki
Yasumori Nagahara
Tatsuo Tani
Seizo Hashizume
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 JP6943278A priority Critical patent/JPS54159983A/en
Priority to US06/045,964 priority patent/US4297021A/en
Priority to DE2923394A priority patent/DE2923394C2/en
Priority to DE19792954090 priority patent/DE2954090C2/en
Publication of JPS54159983A publication Critical patent/JPS54159983A/en
Pending legal-status Critical Current

Links

Landscapes

  • Non-Mechanical Conveyors (AREA)
  • Screw Conveyors (AREA)

Abstract

PURPOSE: To eliminate bridgings by changing the pitch of the screw wings with predetermined intervals or continuously for increasing the conveyor ability as it goes downstream.
CONSTITUTION: In an electro-photography copying machine, the developer 20 comprising toner and carrier (powdery iron) and attached to a photosensitive drum 8 by a developing apparatus 10 passes a transfer roller 11 to a cleaning apparatus, where an extra amount of developer is brushed off. The developer removed here with a cleaning blade 22 and a fur brush 25 is conveyed by a toner conveyor 27 in the axial direction of the screws 28. If the pitch of the screws is increased successively from zone A to zone C, the developer dropping down substantially uniformly can be conveyed without staying a certain portion of the conveyor.
COPYRIGHT: (C)1979,JPO&Japio
JP6943278A 1978-06-09 1978-06-09 Powder conveyor Pending JPS54159983A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP6943278A JPS54159983A (en) 1978-06-09 1978-06-09 Powder conveyor
US06/045,964 US4297021A (en) 1978-06-09 1979-06-06 Powder material transportation apparatus
DE2923394A DE2923394C2 (en) 1978-06-09 1979-06-08 Cleaning device for the photoconductive drum of a copier
DE19792954090 DE2954090C2 (en) 1978-06-09 1979-06-08 Device for conveying the powdery developer from the cleaning device to the developing device of an electrophotographic copier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6943278A JPS54159983A (en) 1978-06-09 1978-06-09 Powder conveyor

Publications (1)

Publication Number Publication Date
JPS54159983A true JPS54159983A (en) 1979-12-18

Family

ID=13402458

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6943278A Pending JPS54159983A (en) 1978-06-09 1978-06-09 Powder conveyor

Country Status (1)

Country Link
JP (1) JPS54159983A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60163067A (en) * 1984-02-06 1985-08-24 Fuji Xerox Co Ltd Carrying device of developer in electronic copying machine
JP2014038123A (en) * 2012-08-10 2014-02-27 Konica Minolta Inc Waste toner recovery device and image forming apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60163067A (en) * 1984-02-06 1985-08-24 Fuji Xerox Co Ltd Carrying device of developer in electronic copying machine
JP2014038123A (en) * 2012-08-10 2014-02-27 Konica Minolta Inc Waste toner recovery device and image forming apparatus
US9086674B2 (en) 2012-08-10 2015-07-21 Konica Minolta, Inc. Waste toner collector and image forming apparatus

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