JPS57111567A - Method and device for controlling developer density - Google Patents

Method and device for controlling developer density

Info

Publication number
JPS57111567A
JPS57111567A JP18652080A JP18652080A JPS57111567A JP S57111567 A JPS57111567 A JP S57111567A JP 18652080 A JP18652080 A JP 18652080A JP 18652080 A JP18652080 A JP 18652080A JP S57111567 A JPS57111567 A JP S57111567A
Authority
JP
Japan
Prior art keywords
toner
density
amplifier
capacitor
delay
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
JP18652080A
Other languages
English (en)
Japanese (ja)
Other versions
JPS645300B2 (enrdf_load_stackoverflow
Inventor
Takahiro Inoue
Takao Aoki
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 JP18652080A priority Critical patent/JPS57111567A/ja
Publication of JPS57111567A publication Critical patent/JPS57111567A/ja
Publication of JPS645300B2 publication Critical patent/JPS645300B2/ja
Granted 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)
JP18652080A 1980-12-27 1980-12-27 Method and device for controlling developer density Granted JPS57111567A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18652080A JPS57111567A (en) 1980-12-27 1980-12-27 Method and device for controlling developer density

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18652080A JPS57111567A (en) 1980-12-27 1980-12-27 Method and device for controlling developer density

Publications (2)

Publication Number Publication Date
JPS57111567A true JPS57111567A (en) 1982-07-12
JPS645300B2 JPS645300B2 (enrdf_load_stackoverflow) 1989-01-30

Family

ID=16189928

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18652080A Granted JPS57111567A (en) 1980-12-27 1980-12-27 Method and device for controlling developer density

Country Status (1)

Country Link
JP (1) JPS57111567A (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5933049U (ja) * 1982-08-26 1984-02-29 コピア株式会社 複写機のトナ−濃度制御装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5933049U (ja) * 1982-08-26 1984-02-29 コピア株式会社 複写機のトナ−濃度制御装置

Also Published As

Publication number Publication date
JPS645300B2 (enrdf_load_stackoverflow) 1989-01-30

Similar Documents

Publication Publication Date Title
HK29392A (en) Method and apparatus for sensing a human body
JPS5713327A (en) Optical detector
GB966753A (en) Electrical apparatus responsive to changes in a physical variable
JPS57111567A (en) Method and device for controlling developer density
EP0343899A3 (en) Circuit for generating pulses having controlled duty cycle
JPS5642223A (en) Light source device for endscope
GB1496855A (en) Electrophotographic copying device
SE7910396L (sv) Laddningsoverforingsanordning
JPS56158356A (en) Density control method for developer
JPS54126552A (en) Toner replenishing device for developing of copying machines and others
JPS5395020A (en) System for detecting when light quantity is stabilized
US3548855A (en) Electronic timer
JPS55127574A (en) Drift compensating method of toner density detector in electrophotographic copier
GB1142880A (en) Improvements in electrical circuits
JPS5329737A (en) Control device for toner density
JPS56156021A (en) Reset time delaying device
JPS57161710A (en) Focusing detecting method
JPS56159657A (en) Image stabilizing method
JPS5737364A (en) Electrode stain preventng device
SU853821A1 (ru) Устройство автоматической регули-РОВКи чуВСТВиТЕльНОСТи дАТчиКА изОбРАжЕНи
JPS5716429A (en) Generator for shutter travelling completion signal in camera
JPS56159672A (en) Detector for deterioration of developer
JPS57125516A (en) Detection circuit for pulse period
JPS56151264A (en) Ignition device for engine
JPS572170A (en) Peripheral light depreciation compensation circuit for solid state pickup element