JPS64583A - Developing device - Google Patents

Developing device

Info

Publication number
JPS64583A
JPS64583A JP14209187A JP14209187A JPS64583A JP S64583 A JPS64583 A JP S64583A JP 14209187 A JP14209187 A JP 14209187A JP 14209187 A JP14209187 A JP 14209187A JP S64583 A JPS64583 A JP S64583A
Authority
JP
Japan
Prior art keywords
developer
sleeve
developing device
amt
deficiency
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
JP14209187A
Other languages
Japanese (ja)
Other versions
JPH01583A (en
Inventor
Naoki Matsuyama
Ayahiro Mitekura
Akio Katsumata
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 JP62-142091A priority Critical patent/JPH01583A/en
Priority claimed from JP62-142091A external-priority patent/JPH01583A/en
Publication of JPS64583A publication Critical patent/JPS64583A/en
Publication of JPH01583A publication Critical patent/JPH01583A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE:To provide a developing device which is capable of stably and uniformly supplying a developer and forming a good image by providing a developer detecting sensor which detects the amt. of the developer to said device. CONSTITUTION:The developer sensor 14 which detects the amt. of the developer is provided to the developing device which is provided with a developing sleeve 5 having internally a magnet group, a toner replenishing roller 2 which is disposed near the sleeve 5 and supplies a toner to the developer magnetized and conveyed on the sleeve 5, and circulating and conveying means 8, 9 which circulate and convey the developer on the sleeve 5 in an axial direction. The deficiency of the developer is thereby surely detected when the developer is deficient. The execution of, for example, a replenishing operation, fault display operation of deficiency, etc., is thus enabled and the generation of the abnormal image is prevented.
JP62-142091A 1987-02-23 1987-06-05 developing device Pending JPH01583A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62-142091A JPH01583A (en) 1987-02-23 1987-06-05 developing device

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP3975587 1987-02-23
JP62-39755 1987-02-23
JP62-142091A JPH01583A (en) 1987-02-23 1987-06-05 developing device

Publications (2)

Publication Number Publication Date
JPS64583A true JPS64583A (en) 1989-01-05
JPH01583A JPH01583A (en) 1989-01-05

Family

ID=

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5111249A (en) * 1989-10-06 1992-05-05 Konica Corporation Heat roller fixing device
US5384628A (en) * 1992-10-10 1995-01-24 Ricoh Company, Ltd. Developing device for image forming equipment
JP4716713B2 (en) * 2003-11-20 2011-07-06 東光電気株式会社 Temperature sensor and temperature sensor installation device
JP2017102199A (en) * 2015-11-30 2017-06-08 京セラドキュメントソリューションズ株式会社 Image formation apparatus

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5111249A (en) * 1989-10-06 1992-05-05 Konica Corporation Heat roller fixing device
US5384628A (en) * 1992-10-10 1995-01-24 Ricoh Company, Ltd. Developing device for image forming equipment
JP4716713B2 (en) * 2003-11-20 2011-07-06 東光電気株式会社 Temperature sensor and temperature sensor installation device
JP2017102199A (en) * 2015-11-30 2017-06-08 京セラドキュメントソリューションズ株式会社 Image formation apparatus

Similar Documents

Publication Publication Date Title
EP0917014A3 (en) Developing apparatus and process cartridge
EP1413931A3 (en) Developing apparatus with an inclined developer supply screw
ES8507269A1 (en) A control system for regulating the dispensing of marking particles in an electrophotographic printing machine.
EP0856783A3 (en) A modular recording medium carrier system and an intermediate transfer unit
JPS6432275A (en) Driving method for image forming device
JPS64583A (en) Developing device
JPS575062A (en) Developing device
JPS56102863A (en) Electrophotographic copying apparatus
EP0754983A3 (en) Developing device provided with a plurality of developer conveying members
JPS642080A (en) Detection of toner end
JPS5557856A (en) Copying apparatus
JPS6243670A (en) Developing device
KR0135723Y1 (en) Feeding device
JPS6482049A (en) Image forming device with form kind detecting function
JPS649478A (en) Image forming device
JPS6490473A (en) Developer replenishing device
JPS56154748A (en) Electrophotographic copier
JPS57120967A (en) Developer supplying device
JPH058613Y2 (en)
JPS6243671A (en) Developing device
JPS54151834A (en) Toner supply
JPH03271784A (en) Image forming device
JPS5473642A (en) Developing apparatus
JPS57158855A (en) Electrophotographic copying machine provided with means for detecting abnormal conveyance of copying paper
JPH03204669A (en) Developing device