JPS55142372A - Developer scatter preventive device - Google Patents

Developer scatter preventive device

Info

Publication number
JPS55142372A
JPS55142372A JP5054279A JP5054279A JPS55142372A JP S55142372 A JPS55142372 A JP S55142372A JP 5054279 A JP5054279 A JP 5054279A JP 5054279 A JP5054279 A JP 5054279A JP S55142372 A JPS55142372 A JP S55142372A
Authority
JP
Japan
Prior art keywords
toner
magnetic pole
developing device
transfer
guide
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
JP5054279A
Other languages
Japanese (ja)
Inventor
Tsutomu Toyono
Toshiharu Nakamura
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 JP5054279A priority Critical patent/JPS55142372A/en
Publication of JPS55142372A publication Critical patent/JPS55142372A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To prevent scattering of toner, eliminate contamination, and re-use the recovered toner, by recovering the scattered developer outside the developing device into the developing device by utilizing the magnetic attractive force. CONSTITUTION:A developing device 3 has a developing magnetic pole N1 and scatter recovering magnetic pole S1, and a magnet 7 having a magnetic pole disposed at a proper place to convey the magnetic developing material T. A doctor blade 8 defines the thickness of toner T, and is positioned opposite to magnetic pole S2. A sleeve 9 envelops the magnet 8 and rotates in the direction of C to feed the toner and recovers the scattered toner. A container 10 has the bottom part 10' which serves as the entry guide of transfer, which pairs with entry guide 4' of transfer paper P. A guide 13 guides the transfer paper P entering from a pair of feeding rollers 11, 11' into the transfer guide. The scattered toner occurring in the transfer part is attracted in the direction of D by the magnetic pole S1 and is led into the developing device, without dispersing outside. Besides, this toner may be re-used in the development.
JP5054279A 1979-04-23 1979-04-23 Developer scatter preventive device Pending JPS55142372A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5054279A JPS55142372A (en) 1979-04-23 1979-04-23 Developer scatter preventive device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5054279A JPS55142372A (en) 1979-04-23 1979-04-23 Developer scatter preventive device

Publications (1)

Publication Number Publication Date
JPS55142372A true JPS55142372A (en) 1980-11-06

Family

ID=12861891

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5054279A Pending JPS55142372A (en) 1979-04-23 1979-04-23 Developer scatter preventive device

Country Status (1)

Country Link
JP (1) JPS55142372A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57142675A (en) * 1981-02-27 1982-09-03 Ricoh Co Ltd Photosensitive drum
JPS57184951U (en) * 1981-05-20 1982-11-24
JPH0217757U (en) * 1988-07-19 1990-02-06
JPH0258252U (en) * 1988-10-18 1990-04-26
JPH0339754U (en) * 1989-08-26 1991-04-17
US5055876A (en) * 1988-06-03 1991-10-08 Fujitsu Limited Image formation apparatus having a process cartridge acting as guidance for a medium

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57142675A (en) * 1981-02-27 1982-09-03 Ricoh Co Ltd Photosensitive drum
JPS57184951U (en) * 1981-05-20 1982-11-24
JPH0142107Y2 (en) * 1981-05-20 1989-12-11
US5055876A (en) * 1988-06-03 1991-10-08 Fujitsu Limited Image formation apparatus having a process cartridge acting as guidance for a medium
JPH0217757U (en) * 1988-07-19 1990-02-06
JPH0258252U (en) * 1988-10-18 1990-04-26
JPH0339754U (en) * 1989-08-26 1991-04-17

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