JPS6476074A - Image forming device - Google Patents

Image forming device

Info

Publication number
JPS6476074A
JPS6476074A JP23333787A JP23333787A JPS6476074A JP S6476074 A JPS6476074 A JP S6476074A JP 23333787 A JP23333787 A JP 23333787A JP 23333787 A JP23333787 A JP 23333787A JP S6476074 A JPS6476074 A JP S6476074A
Authority
JP
Japan
Prior art keywords
toner
magnetic toner
image
cleaning device
forming
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.)
Granted
Application number
JP23333787A
Other languages
Japanese (ja)
Other versions
JPH0673040B2 (en
Inventor
Nobuyuki Kume
Masanori Miyata
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 JP62233337A priority Critical patent/JPH0673040B2/en
Publication of JPS6476074A publication Critical patent/JPS6476074A/en
Priority to US07/405,577 priority patent/US5027161A/en
Publication of JPH0673040B2 publication Critical patent/JPH0673040B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Landscapes

  • Cleaning In Electrography (AREA)
  • Color Electrophotography (AREA)

Abstract

PURPOSE:To prevent the stain of an image forming device by forcedly supplying magnetic toner to a cleaning device when non-magnetic toner is used in case of forming an image. CONSTITUTION:When the non-magnetic toner is used in case of forming the image, the magnetic toner is forcedly supplied to the magnet roller 28 of the cleaning device 11. Namely, when the non-magnetic toner, for example, red toner, is used in order to form the image, black toner (magnetic toner) is developed in the non-image area of a photosensitive drum 1 and, moreover, it is developed on the photosensitive body 1 at the time of post-rotation stage thereof corresponding to the position where the red toner is used and the image information quantity, so that the toner is supplied to the magnet roller 28 of the cleaning device 11 without receiving a transfer action. Thus, there is no possibility that the inside of the device is stained caused by the scatter and the tear dropping, etc., of the non-magnetic toner.
JP62233337A 1987-09-17 1987-09-17 Image forming device Expired - Fee Related JPH0673040B2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP62233337A JPH0673040B2 (en) 1987-09-17 1987-09-17 Image forming device
US07/405,577 US5027161A (en) 1987-09-17 1989-09-08 Image forming apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62233337A JPH0673040B2 (en) 1987-09-17 1987-09-17 Image forming device

Publications (2)

Publication Number Publication Date
JPS6476074A true JPS6476074A (en) 1989-03-22
JPH0673040B2 JPH0673040B2 (en) 1994-09-14

Family

ID=16953567

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62233337A Expired - Fee Related JPH0673040B2 (en) 1987-09-17 1987-09-17 Image forming device

Country Status (1)

Country Link
JP (1) JPH0673040B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0310263A (en) * 1989-06-07 1991-01-17 Canon Inc Image forming method
US5583625A (en) * 1993-11-11 1996-12-10 Ricoh Company, Ltd. Device for cleaning a photoconductive element included in an image forming apparatus
US5671461A (en) * 1994-10-21 1997-09-23 Ricoh Company, Ltd. Toner cartridge avoiding spillage of toners
US5697038A (en) * 1993-01-12 1997-12-09 Ricoh Company, Ltd. Cleaner and toner magazine for electrophotographic apparatus
US5734952A (en) * 1995-02-16 1998-03-31 Ricoh Company, Ltd. Developing device for an image forming apparatus and toner cartridge for replenishing a fresh toner to the developing device

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0310263A (en) * 1989-06-07 1991-01-17 Canon Inc Image forming method
US5697038A (en) * 1993-01-12 1997-12-09 Ricoh Company, Ltd. Cleaner and toner magazine for electrophotographic apparatus
US5873021A (en) * 1993-01-12 1999-02-16 Ricoh Company, Ltd. Cleaner and toner magazine for electrophotographic apparatus
US6148171A (en) * 1993-01-12 2000-11-14 Ricoh Company, Ltd. Cleaning device for cleaning residual toner from a photoconductive element
US5583625A (en) * 1993-11-11 1996-12-10 Ricoh Company, Ltd. Device for cleaning a photoconductive element included in an image forming apparatus
US5907752A (en) * 1993-11-11 1999-05-25 Ricoh Company, Ltd. Device for cleaning a photoconductive element included in an image forming apparatus
US5671461A (en) * 1994-10-21 1997-09-23 Ricoh Company, Ltd. Toner cartridge avoiding spillage of toners
US5822653A (en) * 1994-10-21 1998-10-13 Ricoh Company, Ltd. Toner cartridge avoiding spillage of toners
US5734952A (en) * 1995-02-16 1998-03-31 Ricoh Company, Ltd. Developing device for an image forming apparatus and toner cartridge for replenishing a fresh toner to the developing device

Also Published As

Publication number Publication date
JPH0673040B2 (en) 1994-09-14

Similar Documents

Publication Publication Date Title
EP0754984A3 (en) Electrode member, developing apparatus, process cartridge and image forming apparatus
WO1993009475A3 (en) Developing device using two-component developer
EP0366052A3 (en) Developing apparatus for an image forming apparatus
JPS5764280A (en) Dust figure transfer type electronic copying machine
JPS6476074A (en) Image forming device
GB1498435A (en) Developing device for use in electrophotography
JPS55149962A (en) Magnetic brush type developing device
JPS57661A (en) Electrostatic latent image developing method
JPS56158357A (en) Developing device
JPS6488554A (en) Electrophotographic developer
JPS54149647A (en) Developing device using single component toner
JPS5727283A (en) Developing device
JPS6486184A (en) Developing device
JPS5463830A (en) Development
EP1096331A3 (en) Developing device, process cartridge and electrophotographic image forming apparatus
JPS6468778A (en) Developing device
JPS54134631A (en) Electrophotographic copying process
JPS53129053A (en) Electrostatic image developing method
JPS57116371A (en) Developing device
JPS53123934A (en) Electrophotography
JPS5730868A (en) Cleaning and demagnetizing device in magnetography
JPS56138760A (en) Developing device
JPS649476A (en) Multicolor image forming device
JPS6476078A (en) Two-color electrophotographic device
JPS5723952A (en) Bicolor electrophotographic method

Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees