JP6796258B2 - 画像形成装置 - Google Patents
画像形成装置 Download PDFInfo
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- JP6796258B2 JP6796258B2 JP2017124748A JP2017124748A JP6796258B2 JP 6796258 B2 JP6796258 B2 JP 6796258B2 JP 2017124748 A JP2017124748 A JP 2017124748A JP 2017124748 A JP2017124748 A JP 2017124748A JP 6796258 B2 JP6796258 B2 JP 6796258B2
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- toner
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- amount
- bias
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- 238000012546 transfer Methods 0.000 claims description 72
- 238000011161 development Methods 0.000 claims description 61
- 230000015572 biosynthetic process Effects 0.000 claims description 28
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 108091008695 photoreceptors Proteins 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 description 10
- 230000003111 delayed effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000004044 response Effects 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 239000000969 carrier Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
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- 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
- G03G15/01—Apparatus for electrographic processes using a charge pattern for producing multicoloured copies
- G03G15/0142—Structure of complete machines
- G03G15/0178—Structure of complete machines using more than one reusable electrographic recording member, e.g. one for every monocolour image
- G03G15/0189—Structure of complete machines using more than one reusable electrographic recording member, e.g. one for every monocolour image primary transfer to an intermediate transfer belt
-
- 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
- G03G15/02—Apparatus for electrographic processes using a charge pattern for laying down a uniform charge, e.g. for sensitising; Corona discharge devices
- G03G15/0266—Arrangements for controlling the amount of charge
-
- 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
- G03G15/065—Arrangements for controlling the potential of the developing electrode
-
- 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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/024—Details of scanning heads ; Means for illuminating the original
- H04N1/028—Details of scanning heads ; Means for illuminating the original for picture information pick-up
- H04N1/02815—Means for illuminating the original, not specific to a particular type of pick-up head
-
- 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
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
- G03G2215/00—Apparatus for electrophotographic processes
- G03G2215/00025—Machine control, e.g. regulating different parts of the machine
- G03G2215/00029—Image density detection
- G03G2215/00059—Image density detection on intermediate image carrying member, e.g. transfer belt
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Plasma & Fusion (AREA)
- Control Or Security For Electrophotography (AREA)
- Dry Development In Electrophotography (AREA)
- Electrostatic Charge, Transfer And Separation In Electrography (AREA)
Description
2a〜2d 露光装置
3a〜3d 現像装置
4 中間転写ベルト(中間転写体の一例)
8 センサー
14 現像ローラー
21 帯電装置
22 クリーニング装置
41 非画像トナー量特定部
42 トナー量管理部
Claims (2)
- 感光体ドラムと、
前記感光体ドラム上に光を照射して静電潜像を形成する露光装置と、
帯電バイアスで前記感光体ドラムを帯電させる帯電装置と、
現像バイアスでトナーを保持し、前記静電潜像に前記トナーを付着させる現像ローラーと、
前記静電潜像に前記トナーが付着して得られるトナー像を1次転写される中間転写体と、
前記中間転写体上のトナーを検出するセンサーと、
画像形成前の前記帯電バイアスおよび前記現像バイアスの上昇時、および画像形成後の前記帯電バイアスおよび前記現像バイアスの下降時の少なくとも一方において前記感光体ドラムに付着した非画像トナーを前記中間転写体に1次転写させ、前記センサーの出力に基づいて前記非画像トナーの量を特定する非画像トナー量特定部と、
特定された前記非画像トナーの量を含めてトナー消費量またはトナー残量を特定するトナー量管理部と、
を備え、
前記非画像トナー量特定部は、特定された前記非画像トナーの量、並びに画像形成前の前記帯電バイアスおよび前記現像バイアスの上昇、並びに画像形成後の前記帯電バイアスおよび前記現像バイアスの下降の少なくとも一方の回数に基づいて、前記非画像トナーの総量を特定し、
前記トナー量管理部は、特定した前記総量を含めてトナー消費量またはトナー残量を特定すること、
を特徴とする画像形成装置。 - 前記非画像トナー量特定部は、前記センサーにより検出される前記非画像トナーの濃度および副走査方向の長さに基づいて、前記非画像トナーの量を特定することを特徴とする請求項1記載の画像形成装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017124748A JP6796258B2 (ja) | 2017-06-27 | 2017-06-27 | 画像形成装置 |
US16/011,088 US10331070B2 (en) | 2017-06-27 | 2018-06-18 | Image forming apparatus having sensor for detecting non-image toner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017124748A JP6796258B2 (ja) | 2017-06-27 | 2017-06-27 | 画像形成装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2019008192A JP2019008192A (ja) | 2019-01-17 |
JP6796258B2 true JP6796258B2 (ja) | 2020-12-09 |
Family
ID=64692508
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017124748A Active JP6796258B2 (ja) | 2017-06-27 | 2017-06-27 | 画像形成装置 |
Country Status (2)
Country | Link |
---|---|
US (1) | US10331070B2 (ja) |
JP (1) | JP6796258B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019209628A (ja) * | 2018-06-06 | 2019-12-12 | キヤノン株式会社 | 画像形成装置 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63137245A (ja) * | 1986-11-28 | 1988-06-09 | Mita Ind Co Ltd | 画像形成機のトナ−飛散検出装置 |
US5398099A (en) * | 1992-09-24 | 1995-03-14 | Kabushiki Kaisha Toshiba | Image forming apparatus with bias means for preventing toner particles from clouding optical components |
JPH11282223A (ja) * | 1998-02-02 | 1999-10-15 | Ricoh Co Ltd | 画像形成装置、および光学検知システム |
JP3594841B2 (ja) * | 1999-07-07 | 2004-12-02 | シャープ株式会社 | 画像形成装置 |
KR100389885B1 (en) * | 2001-12-27 | 2003-07-04 | Samsung Electronics Co Ltd | Method for measuring residual amount of toner |
JP4097591B2 (ja) * | 2003-11-12 | 2008-06-11 | 株式会社リコー | 画像形成装置 |
JP2005265968A (ja) * | 2004-03-16 | 2005-09-29 | Ricoh Co Ltd | 画像形成装置 |
JP4337805B2 (ja) * | 2005-11-08 | 2009-09-30 | コニカミノルタビジネステクノロジーズ株式会社 | 画像形成装置及びカブリ制御方法 |
JP2008070796A (ja) | 2006-09-15 | 2008-03-27 | Ricoh Co Ltd | トナー消費量演算装置、画像形成装置及びトナー消費量演算方法 |
JP4389961B2 (ja) * | 2007-04-25 | 2009-12-24 | ブラザー工業株式会社 | 画像形成装置 |
JP2009086401A (ja) * | 2007-10-01 | 2009-04-23 | Ricoh Co Ltd | 画像形成装置 |
US20120002985A1 (en) * | 2010-06-30 | 2012-01-05 | Toshiba Tec Kabushiki Kaisha | Image Forming Apparatus and Method |
JP2014224968A (ja) * | 2013-04-19 | 2014-12-04 | 株式会社リコー | 画像形成装置 |
-
2017
- 2017-06-27 JP JP2017124748A patent/JP6796258B2/ja active Active
-
2018
- 2018-06-18 US US16/011,088 patent/US10331070B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US10331070B2 (en) | 2019-06-25 |
US20180373176A1 (en) | 2018-12-27 |
JP2019008192A (ja) | 2019-01-17 |
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