GB8730357D0 - Toner density control device - Google Patents

Toner density control device

Info

Publication number
GB8730357D0
GB8730357D0 GB8730357A GB8730357A GB8730357D0 GB 8730357 D0 GB8730357 D0 GB 8730357D0 GB 8730357 A GB8730357 A GB 8730357A GB 8730357 A GB8730357 A GB 8730357A GB 8730357 D0 GB8730357 D0 GB 8730357D0
Authority
GB
United Kingdom
Prior art keywords
control device
toner density
density control
toner
density
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
GB8730357A
Other versions
GB2203358A (en
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
Priority claimed from JP326387A external-priority patent/JPH0797250B2/en
Priority claimed from JP326487A external-priority patent/JPH0797251B2/en
Application filed by Ricoh Co Ltd filed Critical Ricoh Co Ltd
Publication of GB8730357D0 publication Critical patent/GB8730357D0/en
Publication of GB2203358A publication Critical patent/GB2203358A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0848—Arrangements for testing or measuring developer properties or quality, e.g. charge, size, flowability
    • G03G15/0849—Detection or control means for the developer concentration
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08—Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822—Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0848—Arrangements for testing or measuring developer properties or quality, e.g. charge, size, flowability
    • G03G15/0849—Detection or control means for the developer concentration
    • G03G15/0853—Detection or control means for the developer concentration the concentration being measured by magnetic means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)
GB8730357A 1987-01-12 1987-12-31 A toner density control device Pending GB2203358A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP326387A JPH0797250B2 (en) 1987-01-12 1987-01-12 Developer concentration control device
JP326487A JPH0797251B2 (en) 1987-01-12 1987-01-12 Developer concentration control device

Publications (2)

Publication Number Publication Date
GB8730357D0 true GB8730357D0 (en) 1988-02-03
GB2203358A GB2203358A (en) 1988-10-19

Family

ID=26336811

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8730357A Pending GB2203358A (en) 1987-01-12 1987-12-31 A toner density control device

Country Status (3)

Country Link
DE (1) DE3800248A1 (en)
FR (1) FR2610424A1 (en)
GB (1) GB2203358A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01178990A (en) * 1987-12-29 1989-07-17 Toshiba Corp Automatic toner sensor
JPH01224787A (en) * 1988-03-04 1989-09-07 Toshiba Corp Image forming device
US4875078A (en) * 1988-09-08 1989-10-17 Eastman Kodak Company Dead time compensation for toner replenishment
JP2862545B2 (en) * 1988-10-31 1999-03-03 株式会社東芝 Image forming device
US20070128756A1 (en) * 2005-12-07 2007-06-07 Bower Stephen P Method and apparatus for determining density of metal-inclusive components

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3814516A (en) * 1973-05-07 1974-06-04 Xerox Corp Humidity compensated control device
JPS5675662A (en) * 1979-11-26 1981-06-22 Hitachi Ltd Operating method of electrophotographic apparatus
JPS5880663A (en) * 1981-11-07 1983-05-14 Ricoh Co Ltd Recording density controlling method
JPS5986074A (en) * 1982-11-09 1984-05-18 Ricoh Co Ltd Control method of supplement amount of toner of electrophotographic copying machine
US4502778A (en) * 1982-12-27 1985-03-05 International Business Machines Corporation System for monitoring and controlling electrophotographic toner operation
US4622916A (en) * 1984-10-18 1986-11-18 Canon Kabushiki Kaisha Color image forming apparatus
US4742372A (en) * 1985-08-09 1988-05-03 Mita Industrial Co., Ltd. Toner detection method and device for copying machines

Also Published As

Publication number Publication date
FR2610424A1 (en) 1988-08-05
DE3800248A1 (en) 1988-07-21
GB2203358A (en) 1988-10-19

Similar Documents

Publication Publication Date Title
US4596900B2 (en) Phone-line-linked tone-operated control device
EP0328750A3 (en) Copying device
EP0297539A3 (en) Recording control apparatus
EP0312835A3 (en) Control apparatus
GB8801951D0 (en) Control apparatus
GB2184247B (en) Image density control
EP0277036A3 (en) An electrophotographic apparatus
EP0291226A3 (en) Electrophotographic recording apparatus
EP0309586A4 (en) Developing device
GB2220511B (en) Recording control apparatus
GB2201758B (en) Control device
EP0284307A3 (en) Copier control system
BG48567A3 (en) Control device for electrohoisting device
EP0295187A3 (en) Developing device
GB8807534D0 (en) Electrophotographic apparatus
EP0306044A3 (en) Developing device
EP0286989A3 (en) Exposure control device
EP0355006A3 (en) Electrophotographical toner electrophotographical toner
GB8825188D0 (en) Control device for copier
GB8725043D0 (en) Control apparatus
GB8820825D0 (en) Control apparatus
GB8418733D0 (en) Image density control device
EP0142053A3 (en) Control device
GB8717947D0 (en) Density control device
GB8730357D0 (en) Toner density control device