JPS58126554A - Developing device - Google Patents

Developing device

Info

Publication number
JPS58126554A
JPS58126554A JP57009865A JP986582A JPS58126554A JP S58126554 A JPS58126554 A JP S58126554A JP 57009865 A JP57009865 A JP 57009865A JP 986582 A JP986582 A JP 986582A JP S58126554 A JPS58126554 A JP S58126554A
Authority
JP
Japan
Prior art keywords
chamber
toners
developing
developer
replenishing
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
JP57009865A
Other languages
Japanese (ja)
Inventor
Masaji Suda
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 JP57009865A priority Critical patent/JPS58126554A/en
Publication of JPS58126554A publication Critical patent/JPS58126554A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/06Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0877Arrangements for metering and dispensing developer from a developer cartridge into the development unit
    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00Apparatus for electrographic processes using a charge pattern
    • G03G15/06Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/08Apparatus for electrographic processes using a charge pattern for developing using a solid developer, e.g. powder developer
    • G03G15/0822Arrangements for preparing, mixing, supplying or dispensing developer
    • G03G15/0848Arrangements for testing or measuring developer properties or quality, e.g. charge, size, flowability
    • G03G15/0856Detection or control means for the developer level

Abstract

PURPOSE:To eliminate the decrease in the density of picture images and the interruption of operations by providing a developer detecting means which operates in the position where the developer for the max. times at which the picture images can be formed continuously remains in a developing chamber, and displaying the lack of the developer with the output signal thereof. CONSTITUTION:A developing device consists of a replenishing toner storage chamber 1 and a developing chamber 2, and a shutter 5 for supplying toners 4 by each proper amt. into the chamber 2 is provided in the communicating path 3 between both chambers 1 and 2. When a sensor S1 as a detecting means for the residual amt. of the toners provided in the bottom part of the developing chamber detects the decrease in the toners, a solenoid operates upon receiving the detection signal thereof and opens the shutter 5 mounted to a rotating shaft 23, thereby dropping and replenishing the toners from the chamber 1 into the chamber 2. When the solenoid receives no signals from the sensor 1 any more, the solenoid is deenergized, by which the replenishing of the toner is stopped.
JP57009865A 1982-01-25 1982-01-25 Developing device Pending JPS58126554A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57009865A JPS58126554A (en) 1982-01-25 1982-01-25 Developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57009865A JPS58126554A (en) 1982-01-25 1982-01-25 Developing device

Publications (1)

Publication Number Publication Date
JPS58126554A true JPS58126554A (en) 1983-07-28

Family

ID=11732029

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57009865A Pending JPS58126554A (en) 1982-01-25 1982-01-25 Developing device

Country Status (1)

Country Link
JP (1) JPS58126554A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61203481A (en) * 1985-03-06 1986-09-09 Canon Inc Developing device
JPS61203480A (en) * 1985-03-06 1986-09-09 Canon Inc Developing device
JPS6359881A (en) * 1986-08-28 1988-03-15 Oozeki Syuzo Kk Microbial strain capable of producing raw starch decomposition enzyme
JPS63101949U (en) * 1986-12-24 1988-07-02
FR2637992A1 (en) * 1988-10-17 1990-04-20 Hitachi Ltd ELECTROSTATIC RECORDING HEAD, IMAGE RECORDING DEVICE AND DISPLAY DEVICE COMPRISING SUCH HEAD, DEVICE FOR SUPPLYING DEVELOPMENT AGENT USED IN SUCH HEAD, AND METHOD FOR MANUFACTURING THE SAME
EP0654713A1 (en) * 1993-10-25 1995-05-24 Ricoh Company, Ltd Toner supply cartridge for rotary developing device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61203481A (en) * 1985-03-06 1986-09-09 Canon Inc Developing device
JPS61203480A (en) * 1985-03-06 1986-09-09 Canon Inc Developing device
JPS6359881A (en) * 1986-08-28 1988-03-15 Oozeki Syuzo Kk Microbial strain capable of producing raw starch decomposition enzyme
JPS63101949U (en) * 1986-12-24 1988-07-02
FR2637992A1 (en) * 1988-10-17 1990-04-20 Hitachi Ltd ELECTROSTATIC RECORDING HEAD, IMAGE RECORDING DEVICE AND DISPLAY DEVICE COMPRISING SUCH HEAD, DEVICE FOR SUPPLYING DEVELOPMENT AGENT USED IN SUCH HEAD, AND METHOD FOR MANUFACTURING THE SAME
EP0654713A1 (en) * 1993-10-25 1995-05-24 Ricoh Company, Ltd Toner supply cartridge for rotary developing device

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