JPS5729061A - Detector for remaining amount of toner of electrophotographic copier - Google Patents

Detector for remaining amount of toner of electrophotographic copier

Info

Publication number
JPS5729061A
JPS5729061A JP10313880A JP10313880A JPS5729061A JP S5729061 A JPS5729061 A JP S5729061A JP 10313880 A JP10313880 A JP 10313880A JP 10313880 A JP10313880 A JP 10313880A JP S5729061 A JPS5729061 A JP S5729061A
Authority
JP
Japan
Prior art keywords
toner
target
concn
remaining amount
detector
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
JP10313880A
Other languages
Japanese (ja)
Inventor
Kazuhiro Ikeda
Akihiko Sato
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.)
Fujifilm Business Innovation Corp
Original Assignee
Fuji Xerox 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 Fuji Xerox Co Ltd filed Critical Fuji Xerox Co Ltd
Priority to JP10313880A priority Critical patent/JPS5729061A/en
Publication of JPS5729061A publication Critical patent/JPS5729061A/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
    • G03G15/0855—Detection or control means for the developer concentration the concentration being measured by optical means
    • 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
    • G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
    • G03G15/5033—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control by measuring the photoconductor characteristics, e.g. temperature, or the characteristics of an image on the photoconductor
    • G03G15/5041—Detecting a toner image, e.g. density, toner coverage, using a test patch

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Brush Developing In Electrophotography (AREA)
  • Dry Development In Electrophotography (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

PURPOSE:To detect the remaining amount of the toner in a toner replenishing device from the amount of the toner stuck on a concn. detecting target by providing said target in the nonimage part of a photoreceptor. CONSTITUTION:When a reference display 6 provided near an original 4 and a platen 3 is exposed, a latent image and a concn. detecting target 7 are formed on the surface of a photoreceptor 2. When the target 7 arrives at a detector 9 after said latent image and target 7 are developed under the same conditions, the toner concn. of the target 7 is optically detected. A control circuit 10 compares the detected value thereof with a preset reference value, and detects the remaining amount of the toner in a toner replenishing device 8a. In this way, the remaining amount of the toner in the toner replenishing device is detected from the concn. of the concn. reference target 7 formed in the nonimage part of the photoreceptor.
JP10313880A 1980-07-29 1980-07-29 Detector for remaining amount of toner of electrophotographic copier Pending JPS5729061A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10313880A JPS5729061A (en) 1980-07-29 1980-07-29 Detector for remaining amount of toner of electrophotographic copier

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10313880A JPS5729061A (en) 1980-07-29 1980-07-29 Detector for remaining amount of toner of electrophotographic copier

Publications (1)

Publication Number Publication Date
JPS5729061A true JPS5729061A (en) 1982-02-16

Family

ID=14346160

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10313880A Pending JPS5729061A (en) 1980-07-29 1980-07-29 Detector for remaining amount of toner of electrophotographic copier

Country Status (1)

Country Link
JP (1) JPS5729061A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6235371A (en) * 1985-08-09 1987-02-16 Mita Ind Co Ltd Detection of density in copying machine
JPH02191976A (en) * 1989-12-04 1990-07-27 Mita Ind Co Ltd Density detecting method for copying machine
JPH02280176A (en) * 1989-04-21 1990-11-16 Ricoh Co Ltd Development control method for copying machine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS535635A (en) * 1976-07-05 1978-01-19 Canon Inc Process and device for controlling image density

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS535635A (en) * 1976-07-05 1978-01-19 Canon Inc Process and device for controlling image density

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6235371A (en) * 1985-08-09 1987-02-16 Mita Ind Co Ltd Detection of density in copying machine
JPH02280176A (en) * 1989-04-21 1990-11-16 Ricoh Co Ltd Development control method for copying machine
JPH02191976A (en) * 1989-12-04 1990-07-27 Mita Ind Co Ltd Density detecting method for copying machine

Similar Documents

Publication Publication Date Title
JPS54133143A (en) Scanning system control device in electrophotographic copier
JPS5461938A (en) Copy concentration controller/paper clogging detector
JPS5518667A (en) Stabilization method of image density
JPS55161261A (en) Toner replenishing method and its device
JPS5754962A (en) Development device
JPS57136667A (en) Developer density controller
JPS5729061A (en) Detector for remaining amount of toner of electrophotographic copier
JPS5784463A (en) Image former
JPS5555349A (en) Control unit of electrophotographic copier
JPS5598770A (en) Toner concentration control method of electrophotographic copier
JPH0310945B2 (en)
JPS57119379A (en) Detector for copying area in copying machine
JPS54126552A (en) Toner replenishing device for developing of copying machines and others
JPS56150762A (en) Control method for surface potential of photoreceptor of electrophotographic copier
JPS5550273A (en) Toner remaining quantity detector
JPS56161557A (en) Method for controlling electrophotographic copying machine
JPS57164739A (en) Copying apparatus
JPS57136668A (en) Developer density controller
JPS56164353A (en) Image density detector of electrophotographic copying machine
JPS57136669A (en) Developer density controller
JPS6457282A (en) Image forming device
JP2801198B2 (en) Image density control method
JPS54103359A (en) Toner density controller
JPS5737356A (en) Retention type electrostatic recording apparatus
JPS56161556A (en) Method for controlling electrophotographic copying machine