JPS61156173A - Developing agent supplying device - Google Patents

Developing agent supplying device

Info

Publication number
JPS61156173A
JPS61156173A JP59274631A JP27463184A JPS61156173A JP S61156173 A JPS61156173 A JP S61156173A JP 59274631 A JP59274631 A JP 59274631A JP 27463184 A JP27463184 A JP 27463184A JP S61156173 A JPS61156173 A JP S61156173A
Authority
JP
Japan
Prior art keywords
developing agent
detecting
arm
toner
control
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
JP59274631A
Other languages
Japanese (ja)
Inventor
Tomohiko Takahashi
Original Assignee
Toshiba Corp
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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP59274631A priority Critical patent/JPS61156173A/en
Publication of JPS61156173A publication Critical patent/JPS61156173A/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
    • G03G15/0848Arrangements for testing or measuring developer properties or quality, e.g. charge, size, flowability
    • G03G15/0856Detection or control means for the developer level
    • 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
    • G03G15/0858Detection or control means for the developer level the level being measured by mechanical means

Abstract

PURPOSE:To prevent such malfunction that improper displacement of a member for detecting the quantity of developing agent is judged as 'no developing agent' and a machine body is controlled, by causing a control means to make the machine body control of 'no developing agent' after the 'no developing agent' is detected at least twice or more. CONSTITUTION:When the toner T in a toner cartridge 22 decreases in quantity to a condition where the toner T does not contact detecting arm 41, the magnet 44 at the lower end section of the arm 41 responds to a reed switch 45 of a housing 31 and sends a 'no toner' detecting signal. When the driving section 25 of a toner carrying member 34 is actuated, a lever 48 is engaged with the detecting arm 41 at the detecting location and forces the arm 41 to move it to the non-detecting location. When the cartridge 22 is newly mounted, the arm 41 is surely returned to the non-detecting location by rotating the lever 48 by at least one turn through the driving section 25 as the preoperation of supplying operations and the machine body control of 'no developing agent' by means of a control means is performed only after 'no developing agent' detection is made twice. Thus malfunction is prevented.
JP59274631A 1984-12-28 1984-12-28 Developing agent supplying device Pending JPS61156173A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59274631A JPS61156173A (en) 1984-12-28 1984-12-28 Developing agent supplying device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59274631A JPS61156173A (en) 1984-12-28 1984-12-28 Developing agent supplying device

Publications (1)

Publication Number Publication Date
JPS61156173A true JPS61156173A (en) 1986-07-15

Family

ID=17544395

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59274631A Pending JPS61156173A (en) 1984-12-28 1984-12-28 Developing agent supplying device

Country Status (1)

Country Link
JP (1) JPS61156173A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04348369A (en) * 1991-02-08 1992-12-03 Fuji Xerox Co Ltd No-toner detection controlling method for developing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04348369A (en) * 1991-02-08 1992-12-03 Fuji Xerox Co Ltd No-toner detection controlling method for developing device

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