JPS6462678A - Toner supply controller of developing device - Google Patents

Toner supply controller of developing device

Info

Publication number
JPS6462678A
JPS6462678A JP22113787A JP22113787A JPS6462678A JP S6462678 A JPS6462678 A JP S6462678A JP 22113787 A JP22113787 A JP 22113787A JP 22113787 A JP22113787 A JP 22113787A JP S6462678 A JPS6462678 A JP S6462678A
Authority
JP
Japan
Prior art keywords
developer
toner supply
toner
control
developing container
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
JP22113787A
Other languages
Japanese (ja)
Inventor
Toshihiro Sato
Toshiharu Nakai
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.)
Kyocera Mita Industrial Co Ltd
Original Assignee
Mita Industrial 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 Mita Industrial Co Ltd filed Critical Mita Industrial Co Ltd
Priority to JP22113787A priority Critical patent/JPS6462678A/en
Publication of JPS6462678A publication Critical patent/JPS6462678A/en
Pending legal-status Critical Current

Links

Landscapes

  • Dry Development In Electrophotography (AREA)

Abstract

PURPOSE:To control toner supply properly by setting the reference value of toner supply control according to the detected value of the pressure of the developer in a developing container. CONSTITUTION:A toner control sensor (toner concentration detecting means) 10 which detects the magnetic permeability of the developer in the developing container 4 is provided on the upper wall of the developing container 4 and a pressure sensor 11 which detects the pressure of the developer is provided in the passage where the developer is conveyed from a magnetic roller 9 to an agitator roller 8. The detected value of this pressure sensor 11 is inputted to a CPU through an A/D converter and the CPU sends a driving signal to a motor for toner supply according to the comparison signal between a reference value based upon the input and the output value of a toner control sensor 10. Consequently, the actual state of the developer is accurately grasped, and this detected value is used to perform the proper toner supply control.
JP22113787A 1987-09-02 1987-09-02 Toner supply controller of developing device Pending JPS6462678A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22113787A JPS6462678A (en) 1987-09-02 1987-09-02 Toner supply controller of developing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22113787A JPS6462678A (en) 1987-09-02 1987-09-02 Toner supply controller of developing device

Publications (1)

Publication Number Publication Date
JPS6462678A true JPS6462678A (en) 1989-03-09

Family

ID=16762039

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22113787A Pending JPS6462678A (en) 1987-09-02 1987-09-02 Toner supply controller of developing device

Country Status (1)

Country Link
JP (1) JPS6462678A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007140291A (en) * 2005-11-21 2007-06-07 Sharp Corp Developing device
JP2010204327A (en) * 2009-03-03 2010-09-16 Konica Minolta Business Technologies Inc Image forming apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007140291A (en) * 2005-11-21 2007-06-07 Sharp Corp Developing device
JP2010204327A (en) * 2009-03-03 2010-09-16 Konica Minolta Business Technologies Inc Image forming apparatus

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