JPS58126556A - Developing device - Google Patents

Developing device

Info

Publication number
JPS58126556A
JPS58126556A JP906482A JP906482A JPS58126556A JP S58126556 A JPS58126556 A JP S58126556A JP 906482 A JP906482 A JP 906482A JP 906482 A JP906482 A JP 906482A JP S58126556 A JPS58126556 A JP S58126556A
Authority
JP
Japan
Prior art keywords
toners
chamber
developing
toner
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
JP906482A
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 JP906482A priority Critical patent/JPS58126556A/en
Publication of JPS58126556A publication Critical patent/JPS58126556A/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

Abstract

PURPOSE:To display the absence of toners when the residual amt. of the toners decreases and to announce the decrease to the operator by detecting the toners in a toner storage chamber and a developing chamber with respectively separately provided detecting means. CONSTITUTION:A developing device is divided to a replenishing toner storage chamber 1 and a developing chamber 2, and sensors S2, S1 which detect the amt. of the toners are provided separately in the respective chambers. When the sensor S1 in the chamber 2 detects the decrease in the toners, the toners are replenished from the chamber 1 into the chamber 2. On the other hand, the toners in the chamber 1 are detected with the sensors S2, and when both sensors S1, S2 detect the absence of the toners, a toner replenishing lamp is lighted to announce the need for the replenishment of the toners. When the sensor S1 detects the presence of the toners and the sensor S2 detects the absence of the toners, the toner replenishing lamp is flickered to announce that the copying operation is possible but that there is a need for replenishing the toner.
JP906482A 1982-01-23 1982-01-23 Developing device Pending JPS58126556A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP906482A JPS58126556A (en) 1982-01-23 1982-01-23 Developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP906482A JPS58126556A (en) 1982-01-23 1982-01-23 Developing device

Publications (1)

Publication Number Publication Date
JPS58126556A true JPS58126556A (en) 1983-07-28

Family

ID=11710178

Family Applications (1)

Application Number Title Priority Date Filing Date
JP906482A Pending JPS58126556A (en) 1982-01-23 1982-01-23 Developing device

Country Status (1)

Country Link
JP (1) JPS58126556A (en)

Cited By (7)

* 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
JPH01154180A (en) * 1987-12-11 1989-06-16 Konica Corp Image forming device
EP1016939A2 (en) * 1998-12-28 2000-07-05 Canon Kabushiki Kaisha Image developing apparatus, process cartridge, electrophotographic image forming apparatus, and development unit frame
JP2003503258A (en) * 1999-06-26 2003-01-28 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング Window wiper
JP2006011404A (en) * 2004-05-25 2006-01-12 Canon Inc Image forming apparatus and its control method
CN100412709C (en) * 2003-12-16 2008-08-20 村田机械株式会社 Image forming device and image forming method

Cited By (8)

* 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
JPH01154180A (en) * 1987-12-11 1989-06-16 Konica Corp Image forming device
EP1016939A2 (en) * 1998-12-28 2000-07-05 Canon Kabushiki Kaisha Image developing apparatus, process cartridge, electrophotographic image forming apparatus, and development unit frame
EP1016939A3 (en) * 1998-12-28 2001-05-30 Canon Kabushiki Kaisha Image developing apparatus, process cartridge, electrophotographic image forming apparatus, and development unit frame
JP2003503258A (en) * 1999-06-26 2003-01-28 ローベルト ボツシユ ゲゼルシヤフト ミツト ベシユレンクテル ハフツング Window wiper
CN100412709C (en) * 2003-12-16 2008-08-20 村田机械株式会社 Image forming device and image forming method
JP2006011404A (en) * 2004-05-25 2006-01-12 Canon Inc Image forming apparatus and its control method

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