JPS57158862A - Detection system for toner empty - Google Patents

Detection system for toner empty

Info

Publication number
JPS57158862A
JPS57158862A JP4511981A JP4511981A JPS57158862A JP S57158862 A JPS57158862 A JP S57158862A JP 4511981 A JP4511981 A JP 4511981A JP 4511981 A JP4511981 A JP 4511981A JP S57158862 A JPS57158862 A JP S57158862A
Authority
JP
Japan
Prior art keywords
motor
toner
impeller
rotated
current
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
JP4511981A
Other languages
Japanese (ja)
Inventor
Fumio Suzuki
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP4511981A priority Critical patent/JPS57158862A/en
Publication of JPS57158862A publication Critical patent/JPS57158862A/en
Pending 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
    • G03G15/0856—Detection or control means for the developer level
    • 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
    • G03G15/0856—Detection or control means for the developer level
    • G03G15/0858—Detection or control means for the developer level the level being measured by mechanical means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Dry Development In Electrophotography (AREA)

Abstract

PURPOSE:To detect the toner empty without being affected by sticking of a toner to a detecting part, by connecting a motor to an impeller in a toner container and detecting the rotation of the motor due to the variance of a load accompanied with the variance is the toner level. CONSTITUTION:An impeller 10 is provided in the lower part of a toner hopper 7 and is connected to a motor 11. A code plate 13 is provided on a shaft 12 of the motor 11 coaxially, and information of the code plate 13 is read by a reading head 15, and the motor is driven to detect the rotation of the impeller. When the impeller is buried in a toner, the motor is not rotated by the load of the toner even if a current is flowed to the motor; but the motor is rotated when the toner is reduced and the impeller is not buried in the toner. A weak current is flowed to the motor, and a toner empty signal is issued if the motor is rotated by this current.
JP4511981A 1981-03-27 1981-03-27 Detection system for toner empty Pending JPS57158862A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4511981A JPS57158862A (en) 1981-03-27 1981-03-27 Detection system for toner empty

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4511981A JPS57158862A (en) 1981-03-27 1981-03-27 Detection system for toner empty

Publications (1)

Publication Number Publication Date
JPS57158862A true JPS57158862A (en) 1982-09-30

Family

ID=12710378

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4511981A Pending JPS57158862A (en) 1981-03-27 1981-03-27 Detection system for toner empty

Country Status (1)

Country Link
JP (1) JPS57158862A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61261760A (en) * 1985-05-15 1986-11-19 Konishiroku Photo Ind Co Ltd Developing device
EP0790536A2 (en) * 1996-02-16 1997-08-20 Lexmark International, Inc. Multiple function encoder wheel for cartridges utilized in an electrophotographic output device
US5995772A (en) * 1996-02-16 1999-11-30 Lexmark International Inc. Imaging apparatus cartridge including an encoded device
US6009285A (en) * 1996-02-16 1999-12-28 Lexmark International, Inc. Method for determining characteristics of an electrophotographic cartridge carrying a rotatable element

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5087655A (en) * 1973-12-06 1975-07-14
JPS5459151A (en) * 1977-10-20 1979-05-12 Ricoh Co Ltd Detector for toner remnants

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5087655A (en) * 1973-12-06 1975-07-14
JPS5459151A (en) * 1977-10-20 1979-05-12 Ricoh Co Ltd Detector for toner remnants

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61261760A (en) * 1985-05-15 1986-11-19 Konishiroku Photo Ind Co Ltd Developing device
JPH0570820B2 (en) * 1985-05-15 1993-10-05 Konishiroku Photo Ind
EP0790536A2 (en) * 1996-02-16 1997-08-20 Lexmark International, Inc. Multiple function encoder wheel for cartridges utilized in an electrophotographic output device
EP0790536A3 (en) * 1996-02-16 1998-09-30 Lexmark International, Inc. Multiple function encoder wheel for cartridges utilized in an electrophotographic output device
US5942067A (en) * 1996-02-16 1999-08-24 Lexmark International, Inc. Apparatus and method for encoding an encoder wheel
US5995772A (en) * 1996-02-16 1999-11-30 Lexmark International Inc. Imaging apparatus cartridge including an encoded device
US6009285A (en) * 1996-02-16 1999-12-28 Lexmark International, Inc. Method for determining characteristics of an electrophotographic cartridge carrying a rotatable element
US6169860B1 (en) 1996-02-16 2001-01-02 Lexmark International, Inc. Toner cartridge having encoded wheel
US6295422B1 (en) 1996-02-16 2001-09-25 Lexmark International, Inc. Encoded wheel for a toner cartridge
US6397015B2 (en) 1996-02-16 2002-05-28 Lexmark International, Inc. Encoded device having positioned indicia for use with a toner cartridge
EP1522904A2 (en) 1996-02-16 2005-04-13 Lexmark International, Inc. Multiple function encoder wheel for cartridges utilized in an electrographic output device
EP1522904A3 (en) * 1996-02-16 2008-04-16 Lexmark International, Inc. Multiple function encoder wheel for cartridges utilized in an electrographic output device

Similar Documents

Publication Publication Date Title
CA2063920A1 (en) Toner quantity detecting system for an image recording apparatus, a method of detecting the quantity of toner and a developing device for the image recording apparatus
JPS57158862A (en) Detection system for toner empty
JPS56102863A (en) Electrophotographic copying apparatus
JPS648551A (en) Disk driver and disk cartridge used for the driver
JPS5715260A (en) Disk deformation detection system
JPS57136669A (en) Developer density controller
JPS57100660A (en) Cartridge receiving mechanism of large scale storage device
JPS6449068A (en) Operation detecting method for developer
DE69812515T2 (en) Submersible sewage pump
JPS6412218A (en) Present position detection system for automobile
JPS6442068A (en) Disk controller
JPS57125470A (en) Bar-code detecting device
JPS57177289A (en) Constant-speed control circuit for dc motor
JPS57193905A (en) Automatic train operating device
Lim et al. Apparatus for determining the angular position, speed and/or direction of rotary objects
JPS5517104A (en) Toner remainder detector of electrophotographic copier
JPS54107210A (en) Abnormity detection system for reading light source
JPS55121581A (en) Postal code detector
FR2559324B1 (en) METHOD AND DEVICE FOR DETECTING ERROR IN A TRAIN OF BINARY INFORMATION EXPRESSED ACCORDING TO THE CMI CODE
JPS6440979A (en) Image forming device
JPS57203363A (en) Controlling system for data transfer
JPS54162568A (en) Water level gauge with water level shaft revolution failure trouble detector
JPS57161973A (en) Control system for reader
JPS5771551A (en) Disc driver
JPS6462680A (en) Electrophotographic device