JP4844644B2 - 露光装置、画像形成装置、及び露光制御プログラム - Google Patents
露光装置、画像形成装置、及び露光制御プログラム Download PDFInfo
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- JP4844644B2 JP4844644B2 JP2009073104A JP2009073104A JP4844644B2 JP 4844644 B2 JP4844644 B2 JP 4844644B2 JP 2009073104 A JP2009073104 A JP 2009073104A JP 2009073104 A JP2009073104 A JP 2009073104A JP 4844644 B2 JP4844644 B2 JP 4844644B2
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- Japan
- Prior art keywords
- light emitting
- emitting elements
- current
- voltage
- emitting element
- 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.)
- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/435—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material
- B41J2/47—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using the combination of scanning and modulation of light
- B41J2/471—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using the combination of scanning and modulation of light using dot sequential main scanning by means of a light deflector, e.g. a rotating polygonal mirror
- B41J2/473—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by selective application of radiation to a printing material or impression-transfer material using the combination of scanning and modulation of light using dot sequential main scanning by means of a light deflector, e.g. a rotating polygonal mirror using multiple light beams, wavelengths or colours
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/10—Scanning systems
- G02B26/12—Scanning systems using multifaceted mirrors
- G02B26/123—Multibeam scanners, e.g. using multiple light sources or beam splitters
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
- G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
- G02B26/10—Scanning systems
- G02B26/12—Scanning systems using multifaceted mirrors
- G02B26/127—Adaptive control of the scanning light beam, e.g. using the feedback from one or more detectors
-
- 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
- G03G15/22—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20
- G03G15/32—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which the charge pattern is formed dotwise, e.g. by a thermal head
- G03G15/326—Apparatus for electrographic processes using a charge pattern involving the combination of more than one step according to groups G03G13/02 - G03G13/20 in which the charge pattern is formed dotwise, e.g. by a thermal head by application of light, e.g. using a LED array
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K15/00—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers
- G06K15/02—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers
- G06K15/12—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers
- G06K15/1238—Arrangements for producing a permanent visual presentation of the output data, e.g. computer output printers using printers by photographic printing, e.g. by laser printers simultaneously exposing more than one point
-
- 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
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/113—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using oscillating or rotating mirrors
- H04N1/1135—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using oscillating or rotating mirrors for the main-scan only
-
- 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
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/19—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays
- H04N1/191—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays the array comprising a one-dimensional array, or a combination of one-dimensional arrays, or a substantially one-dimensional array, e.g. an array of staggered elements
- H04N1/1911—Simultaneously or substantially simultaneously scanning picture elements on more than one main scanning line, e.g. scanning in swaths
-
- 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
- H04N1/04—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa
- H04N1/19—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays
- H04N1/191—Scanning arrangements, i.e. arrangements for the displacement of active reading or reproducing elements relative to the original or reproducing medium, or vice versa using multi-element arrays the array comprising a one-dimensional array, or a combination of one-dimensional arrays, or a substantially one-dimensional array, e.g. an array of staggered elements
- H04N1/1911—Simultaneously or substantially simultaneously scanning picture elements on more than one main scanning line, e.g. scanning in swaths
- H04N1/1916—Simultaneously or substantially simultaneously scanning picture elements on more than one main scanning line, e.g. scanning in swaths using an array of elements displaced from one another in the main scan direction, e.g. a diagonally arranged array
- H04N1/1917—Staggered element array, e.g. arrays with elements arranged in a zigzag
-
- 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
- H04N1/46—Colour picture communication systems
- H04N1/50—Picture reproducers
- H04N1/506—Reproducing the colour component signals picture-sequentially, e.g. with reproducing heads spaced apart from one another in the subscanning direction
-
- 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
- G03G15/04—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material
- G03G15/043—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for controlling illumination or exposure
- G03G15/0435—Apparatus for electrographic processes using a charge pattern for exposing, i.e. imagewise exposure by optically projecting the original image on a photoconductive recording material with means for controlling illumination or exposure by introducing an optical element in the optical path, e.g. a filter
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Fax Reproducing Arrangements (AREA)
- Laser Beam Printer (AREA)
- Exposure Or Original Feeding In Electrophotography (AREA)
- Control Or Security For Electrophotography (AREA)
- Color Electrophotography (AREA)
- Semiconductor Lasers (AREA)
Description
Scan)センサ1078に入射する構成となっている。
f<1000÷(d×n)
となるように、ブロック数を決定する。この条件を満足する限り、変動が起きたとしても露光量の変動の周期が感知できる周波数以下である。
1001〜10032 ドライバ
105 負荷
LD1〜LD32 発光素子
3019−1,3019−2 バイアス電流設定部
3014 バイアス電圧設定回路
4001 CPU
4004 制御プログラム
Claims (3)
- 複数の発光素子と、
負荷と、
前記複数の発光素子のうち画像形成に使用するものについては、変調信号に応じて前記発光素子と前記負荷とのうち一方に駆動電流を供給し他方にバイアス電流を供給する第1の供給手段と、
前記複数の発光素子のうち画像形成に使用しないものについては、前記変調信号にかかわらず前記バイアス電流を前記発光素子に供給する第2の供給手段と、
前記複数の発光素子の消灯の際の各端子間電圧を平均化処理した前記複数の発光素子で共通のバイアス電圧を前記各発光素子に供給する第3の供給手段と、
を備え、
前記第1及び第2の供給手段は、前記バイアス電圧の供給後、前記バイアス電圧に基づいて設定された前記バイアス電流を前記発光素子又は前記負荷に供給する、
露光装置。 - 感光体と、
前記感光体を露光して静電潜像を形成する複数の発光素子を有する露光装置と、
前記静電潜像をトナーで現像する現像器と、
を備え、
前記露光装置は、
複数の発光素子を有する露光部と、
負荷と、
前記複数の発光素子のうち画像形成に使用するものについては、変調信号に応じて前記発光素子と前記負荷とのうち一方に駆動電流を供給し他方にバイアス電流を供給する第1の供給手段と、
前記複数の発光素子のうち画像形成に使用しないものについては、前記変調信号にかかわらず前記バイアス電流を前記発光素子に供給する第2の供給手段と、
前記複数の発光素子の消灯の際の各端子間電圧を平均化処理した前記複数の発光素子で共通のバイアス電圧を前記各発光素子に供給する第3の供給手段と、
を備え、
前記第1及び第2の供給手段は、前記バイアス電圧の供給後、前記バイアス電圧に基づいて設定された前記バイアス電流を前記発光素子又は前記負荷に供給する、
画像形成装置。 - 複数の発光素子のうち画像形成に使用するものについては、変調信号に応じて前記発光素子と負荷とのうち一方に駆動電流を供給し他方にバイアス電流を供給する第1の供給手段と、
前記複数の発光素子のうち画像形成に使用しないものについては、前記変調信号にかかわらず前記バイアス電流を前記発光素子に供給する第2の供給手段と、
前記複数の発光素子の消灯の際の各端子間電圧を平均化処理した前記複数の発光素子で共通のバイアス電圧を前記各発光素子に供給する第3の供給手段と、
をコンピュータに実行させ、
前記第1及び第2の供給手段は、前記バイアス電圧の供給後、前記バイアス電圧に基づいて設定された前記バイアス電流を前記発光素子又は前記負荷に供給する、
コンピュータに読み取り可能な露光制御プログラム。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009073104A JP4844644B2 (ja) | 2009-03-25 | 2009-03-25 | 露光装置、画像形成装置、及び露光制御プログラム |
US12/568,112 US8059146B2 (en) | 2009-03-25 | 2009-09-28 | Exposure device, image forming apparatus, and computer-readable medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009073104A JP4844644B2 (ja) | 2009-03-25 | 2009-03-25 | 露光装置、画像形成装置、及び露光制御プログラム |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2010221608A JP2010221608A (ja) | 2010-10-07 |
JP4844644B2 true JP4844644B2 (ja) | 2011-12-28 |
Family
ID=42783673
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009073104A Expired - Fee Related JP4844644B2 (ja) | 2009-03-25 | 2009-03-25 | 露光装置、画像形成装置、及び露光制御プログラム |
Country Status (2)
Country | Link |
---|---|
US (1) | US8059146B2 (ja) |
JP (1) | JP4844644B2 (ja) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4807426B2 (ja) * | 2009-03-25 | 2011-11-02 | 富士ゼロックス株式会社 | 露光装置、画像形成装置、及び露光制御プログラム |
JP2011198919A (ja) * | 2010-03-18 | 2011-10-06 | Ricoh Co Ltd | 半導体レーザ駆動装置及びその半導体レーザ駆動装置を備えた画像形成装置 |
JP5744481B2 (ja) * | 2010-11-09 | 2015-07-08 | キヤノン株式会社 | 電源装置及び電源装置を有する画像形成装置 |
US10444672B2 (en) * | 2015-04-22 | 2019-10-15 | Hp Indigo B.V. | Spatially selective heating of intermediate transfer member |
US10153612B1 (en) * | 2017-10-31 | 2018-12-11 | Google Llc | Tunable laser bias circuit |
CN108364306B (zh) * | 2018-02-05 | 2020-11-24 | 北京建筑大学 | 一种高速周期运动的视觉实时检测方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0883950A (ja) * | 1994-09-12 | 1996-03-26 | Canon Inc | レーザ駆動装置 |
JPH09272223A (ja) * | 1996-04-05 | 1997-10-21 | Canon Inc | マルチビームレーザ駆動装置 |
US7352786B2 (en) | 2001-03-05 | 2008-04-01 | Fuji Xerox Co., Ltd. | Apparatus for driving light emitting element and system for driving light emitting element |
JP4123791B2 (ja) * | 2001-03-05 | 2008-07-23 | 富士ゼロックス株式会社 | 発光素子駆動装置および発光素子駆動システム |
JP2004193376A (ja) | 2002-12-12 | 2004-07-08 | Fuji Xerox Co Ltd | 発光素子駆動装置 |
JP4581345B2 (ja) * | 2003-08-08 | 2010-11-17 | 富士ゼロックス株式会社 | 発光素子駆動装置及び画像形成装置 |
JP4552395B2 (ja) * | 2003-08-08 | 2010-09-29 | 富士ゼロックス株式会社 | 発光素子駆動装置及び画像形成装置 |
JP2005096260A (ja) * | 2003-09-25 | 2005-04-14 | Seiko Epson Corp | ラインヘッドおよびそれを用いた画像形成装置 |
US20060023761A1 (en) * | 2004-07-29 | 2006-02-02 | Canon Kabushiki Kaisha | Semiconductor laser drive control apparatus |
JP2009015087A (ja) * | 2007-07-06 | 2009-01-22 | Ricoh Printing Systems Ltd | 画像形成装置 |
-
2009
- 2009-03-25 JP JP2009073104A patent/JP4844644B2/ja not_active Expired - Fee Related
- 2009-09-28 US US12/568,112 patent/US8059146B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2010221608A (ja) | 2010-10-07 |
US20100245527A1 (en) | 2010-09-30 |
US8059146B2 (en) | 2011-11-15 |
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