EP2592481A3 - Toner consumption caculator, image forming apparatus, and toner consumption calculation method - Google Patents

Toner consumption caculator, image forming apparatus, and toner consumption calculation method Download PDF

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Publication number
EP2592481A3
EP2592481A3 EP12184247.0A EP12184247A EP2592481A3 EP 2592481 A3 EP2592481 A3 EP 2592481A3 EP 12184247 A EP12184247 A EP 12184247A EP 2592481 A3 EP2592481 A3 EP 2592481A3
Authority
EP
European Patent Office
Prior art keywords
image data
toner consumption
pixels
reads
line memories
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.)
Granted
Application number
EP12184247.0A
Other languages
German (de)
French (fr)
Other versions
EP2592481B1 (en
EP2592481A2 (en
Inventor
Tatsuya Miyadera
Motohiro Kawanabe
Takeshi Shikama
Izumi Kinoshita
Takuhei Yokoyama
Susumu Miyazaki
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Publication of EP2592481A2 publication Critical patent/EP2592481A2/en
Publication of EP2592481A3 publication Critical patent/EP2592481A3/en
Application granted granted Critical
Publication of EP2592481B1 publication Critical patent/EP2592481B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • G03G15/55—Self-diagnostics; Malfunction or lifetime display
    • G03G15/553—Monitoring or warning means for exhaustion or lifetime end of consumables, e.g. indication of insufficient copy sheet quantity for a job
    • G03G15/556—Monitoring or warning means for exhaustion or lifetime end of consumables, e.g. indication of insufficient copy sheet quantity for a job for toner consumption, e.g. pixel counting, toner coverage detection or toner density measurement
    • 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
    • G03G15/50—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control
    • G03G15/5054—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control by measuring the characteristics of an intermediate image carrying member or the characteristics of an image on an intermediate image carrying member, e.g. intermediate transfer belt or drum, conveyor belt
    • G03G15/5058—Machine control of apparatus for electrographic processes using a charge pattern, e.g. regulating differents parts of the machine, multimode copiers, microprocessor control by measuring the characteristics of an intermediate image carrying member or the characteristics of an image on an intermediate image carrying member, e.g. intermediate transfer belt or drum, conveyor belt using a test patch

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Control Or Security For Electrophotography (AREA)

Abstract

A toner consumption calculator includes a plurality of line memories; a processor that sequentially records image data including a plurality of pixels into the line memories and processes the image data by sequentially reading the image data from the line memories; an exposing unit that performs exposure in accordance with the processed image data and forms a latent image based on the image data on an image carrier; and a counter that sequentially reads the image data from the line memories and counts toner consumption of a target pixel on the basis of light amounts of surrounding pixels of the target pixel. The processor reads the image data from the line memories L times (L is a natural number) and reads M pixels (M is a natural number) per line memory and per clock. M is equal to or larger than the number of surrounding pixels of the target pixel in a main-scanning direction. The counter reads the image data from the line memories L times, reads the M pixels per line memory and per clock, and counts the toner consumption of N target pixels (N ≤ M).
EP12184247.0A 2011-09-16 2012-09-13 Toner consumption caculator, image forming apparatus, and toner consumption calculation method Active EP2592481B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2011202566A JP5786583B2 (en) 2011-09-16 2011-09-16 Toner consumption calculation device, image forming apparatus, and toner consumption calculation method

Publications (3)

Publication Number Publication Date
EP2592481A2 EP2592481A2 (en) 2013-05-15
EP2592481A3 true EP2592481A3 (en) 2017-06-07
EP2592481B1 EP2592481B1 (en) 2020-03-11

Family

ID=47177732

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12184247.0A Active EP2592481B1 (en) 2011-09-16 2012-09-13 Toner consumption caculator, image forming apparatus, and toner consumption calculation method

Country Status (3)

Country Link
EP (1) EP2592481B1 (en)
JP (1) JP5786583B2 (en)
CN (1) CN103092042B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014095773A (en) 2012-11-08 2014-05-22 Ricoh Co Ltd Optical writing control device, image forming apparatus, and optical writing control method
JP6011279B2 (en) 2012-11-27 2016-10-19 株式会社リコー Image forming apparatus and image forming method
JP6191126B2 (en) 2012-11-30 2017-09-06 株式会社リコー Optical writing control apparatus, image forming apparatus, and optical writing apparatus control method
CN106094464B (en) * 2016-08-18 2019-05-07 珠海赛纳打印科技股份有限公司 Print Video Controller and its control method, image forming apparatus
US11156939B2 (en) 2018-11-07 2021-10-26 Hewlett-Packard Development Company, L.P. Toner level determination and notification
CN114138213B (en) * 2022-01-27 2022-04-15 北京辰光融信技术有限公司 Printer control method and device, storage medium and electronic equipment

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5708919A (en) * 1995-05-02 1998-01-13 Minolta Co., Ltd. Imaging forming apparatus for forming images on both surfaces of recording medium
JP2007174571A (en) * 2005-12-26 2007-07-05 Fuji Xerox Co Ltd Image forming apparatus and image processing method
US20100119273A1 (en) * 2008-11-13 2010-05-13 Kunihiro Komai Image forming apparatus and method of correcting color image misalignment

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6895193B2 (en) * 2002-06-20 2005-05-17 Matsushita Electric Industrial Co., Ltd. Image forming apparatus and method for estimating the amount of toner consumption
JP3996872B2 (en) * 2002-06-20 2007-10-24 松下電器産業株式会社 Image forming apparatus and toner consumption prediction method
JP3684226B2 (en) * 2002-11-11 2005-08-17 京セラミタ株式会社 Image forming apparatus and color misregistration correction method thereof
JP4396605B2 (en) 2005-09-12 2010-01-13 セイコーエプソン株式会社 Image forming apparatus, toner counter, and toner consumption calculation method
EP1806627A4 (en) * 2004-09-30 2010-12-01 Seiko Epson Corp Image formation device, toner counter, and toner consumption amount calculation method
JP2007030191A (en) * 2005-07-22 2007-02-08 Matsushita Electric Ind Co Ltd Tandem type color image forming apparatus
JP2007310030A (en) * 2006-05-16 2007-11-29 Canon Inc Image forming apparatus
JP2008055717A (en) * 2006-08-30 2008-03-13 Seiko Epson Corp Exposure head controller and image formation device
US7978986B2 (en) * 2007-08-08 2011-07-12 Ricoh Company, Ltd. Image forming apparatus and method for monitoring the degree of consumption of consumable components
JP2009251313A (en) * 2008-04-07 2009-10-29 Canon Inc Image forming apparatus and color shift correcting method thereof
JP2011180363A (en) * 2010-03-01 2011-09-15 Brother Industries Ltd Image forming apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5708919A (en) * 1995-05-02 1998-01-13 Minolta Co., Ltd. Imaging forming apparatus for forming images on both surfaces of recording medium
JP2007174571A (en) * 2005-12-26 2007-07-05 Fuji Xerox Co Ltd Image forming apparatus and image processing method
US20100119273A1 (en) * 2008-11-13 2010-05-13 Kunihiro Komai Image forming apparatus and method of correcting color image misalignment

Also Published As

Publication number Publication date
CN103092042A (en) 2013-05-08
EP2592481B1 (en) 2020-03-11
JP5786583B2 (en) 2015-09-30
EP2592481A2 (en) 2013-05-15
JP2013064811A (en) 2013-04-11
CN103092042B (en) 2015-09-02

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