JP2011110846A - 画像形成装置 - Google Patents
画像形成装置 Download PDFInfo
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- JP2011110846A JP2011110846A JP2009270102A JP2009270102A JP2011110846A JP 2011110846 A JP2011110846 A JP 2011110846A JP 2009270102 A JP2009270102 A JP 2009270102A JP 2009270102 A JP2009270102 A JP 2009270102A JP 2011110846 A JP2011110846 A JP 2011110846A
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- 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
-
- 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
- B41J2/447—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 arrays of radiation sources
- B41J2/45—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 arrays of radiation sources using light-emitting diode [LED] or laser arrays
-
- 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
- B41J2/447—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 arrays of radiation sources
- B41J2/455—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 arrays of radiation sources using laser arrays, the laser array being smaller than the medium to be recorded
-
- 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
- G06K15/1204—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 involving the fast moving of an optical beam in the main scanning direction
- G06K15/1209—Intensity control of the optical beam
-
- 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
- G06K15/1257—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 on more than one main scanning line
- G06K15/1261—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 on more than one main scanning line using an array of light sources
-
- 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
- G06K15/128—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 generating or processing printable items, e.g. characters
-
- 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
- H04N1/047—Detection, control or error compensation of scanning velocity or position
- H04N1/0473—Detection, control or error compensation of scanning velocity or position in subscanning direction, e.g. picture start or line-to-line synchronisation
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N2201/00—Indexing scheme relating to scanning, transmission or reproduction of documents or the like, and to details thereof
- H04N2201/04—Scanning arrangements
- H04N2201/047—Detection, control or error compensation of scanning velocity or position
- H04N2201/04753—Control or error compensation of scanning position or velocity
- H04N2201/04794—Varying the control or compensation during the scan, e.g. using continuous feedback or from line to line
- H04N2201/04796—Varying the sub-scan control during the main-scan, e.g. for correcting skew, tilt or bow of a scanning beam
Abstract
【解決手段】 光学系を介して複数の光を感光体の副走査方向に並べて照射する複数の発光源と、複数の発光源の光が感光体上で走査されることにより感光体上に形成される複数の走査線の粗密に応じて、画像データの濃度を増減するフィルタ演算を行うフィルタ演算部103と、フィルタ演算部103によりフィルタ演算された画像データに基づいて複数の発光源を発光させる駆動回路を有する。
【選択図】 図8
Description
IMAGE_OUT=IMAGE_IN×K0+IMAGE_L1+IMAGE_L2×K2
フィルタ係数K2は、N−1ライン目の隣接画素のレーザスポットと注目画素のレーザスポットが理想よりも近い場合には負の値をとり、理想よりも遠い場合には正の値をとる。同様に、フィルタ係数K0は、N+1ライン目の隣接画素のレーザスポットと注目画素のレーザスポットが理想よりも近い場合には負の値をとり、理想よりも遠い場合には正の値をとる。つまり、隣接画素のレーザスポットと注目画素のレーザスポットが理想よりも近い(走査線間のピッチが密)場合には、注目画素の濃度を減少させ、隣接画素のレーザスポットと注目画素のレーザスポットが理想よりも遠い(走査線間のピッチが粗)場合には、注目画素の濃度を増加させる。このようにして、注目画素の画像データIMAGE_L1は、副走査方向の隣接画素のレーザスポットとの粗密の度合、及び、副走査方向の隣接画素の画像データIMAGE_L2,IMAGE_INに応じて増減され、画像データIMAGE_OUTとして出力される。
SA=YAn+(MAn/NAn)×(X−XAn)
SB=YBn+(MBn/NBn)×(X−XBn)
314 レーザピッチ補正部
103 フィルタ演算部
Claims (5)
- 画像データに応じた光を主走査方向に走査して、副走査方向に回転する感光体に照射し、照射された光により感光体に形成された潜像を現像し、現像された画像を記録シートに転写する画像形成装置において、
光学系を介して複数の光を前記感光体の副走査方向に並べて照射する複数の発光源と、
前記複数の発光源の光が前記感光体上で走査されることにより前記感光体上に形成される複数の走査線間の粗密に応じて、画像データの濃度を増減する画像処理を行う画像処理手段と、
前記画像処理手段により画像処理された画像データに基づいて前記複数の発光源を発光させる駆動手段とを有することを特徴とする画像形成装置。 - 前記画像処理手段は、隣接する走査線との距離と、隣接する走査線の画像データに応じて、画像データの濃度を増減する画像処理を行うことを特徴とする請求項1記載の画像形成装置。
- 前記複数の発光源それぞれの走査線のプロファイルデータを記憶する記憶手段を有し、
前記画像処理手段は、前記記憶手段に記憶されたプロファイルデータに基づいて、隣接する走査線との距離を求めることを特徴とする請求項2記載の画像形成装置。 - 前記画像処理手段は、前記記憶手段に記憶されたプロファイルデータに基づいて、隣接する走査線の理想の走査線に対するズレ量と、注目画素の走査線の理想の走査線に対するズレ量を求め、注目画素の走査線と隣接する走査線との距離を求めることを特徴とする請求項3記載の画像形成装置。
- 前記画像処理手段は、走査線間のピッチが密の場合には、画像データの濃度を減少させ、走査線間のピッチが粗の場合には、画像データの濃度を増加させることを特徴とする請求項1記載の画像形成装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009270102A JP5744391B2 (ja) | 2009-11-27 | 2009-11-27 | 画像形成装置 |
EP10191807.6A EP2333617B1 (en) | 2009-11-27 | 2010-11-19 | Image forming apparatus |
KR1020100115737A KR101401750B1 (ko) | 2009-11-27 | 2010-11-19 | 화상 형성 장치 및 화상 처리 방법 |
US12/954,172 US9308743B2 (en) | 2009-11-27 | 2010-11-24 | Image forming apparatus |
CN201010568503.0A CN102081229B (zh) | 2009-11-27 | 2010-11-26 | 图像形成设备 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009270102A JP5744391B2 (ja) | 2009-11-27 | 2009-11-27 | 画像形成装置 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2011110846A true JP2011110846A (ja) | 2011-06-09 |
JP2011110846A5 JP2011110846A5 (ja) | 2013-03-21 |
JP5744391B2 JP5744391B2 (ja) | 2015-07-08 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009270102A Active JP5744391B2 (ja) | 2009-11-27 | 2009-11-27 | 画像形成装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US9308743B2 (ja) |
EP (1) | EP2333617B1 (ja) |
JP (1) | JP5744391B2 (ja) |
KR (1) | KR101401750B1 (ja) |
CN (1) | CN102081229B (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017024406A (ja) * | 2015-07-16 | 2017-02-02 | キヤノン株式会社 | 画像形成装置 |
JP2017024402A (ja) * | 2015-07-16 | 2017-02-02 | キヤノン株式会社 | 画像形成装置の補正方法 |
JP2017030303A (ja) * | 2015-08-05 | 2017-02-09 | キヤノン株式会社 | 画像形成装置の補正方法 |
JP2017132041A (ja) * | 2016-01-25 | 2017-08-03 | キヤノン株式会社 | 画像形成装置 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5930750B2 (ja) * | 2012-02-10 | 2016-06-08 | キヤノン株式会社 | 画像形成装置及び画像形成方法 |
WO2015010865A1 (en) | 2013-07-22 | 2015-01-29 | Harman Becker Automotive Systems Gmbh | Automatic timbre control |
WO2015010864A1 (en) | 2013-07-22 | 2015-01-29 | Harman Becker Automotive Systems Gmbh | Automatic timbre, loudness and equalization control |
Citations (5)
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JPH02131956A (ja) * | 1988-11-14 | 1990-05-21 | Fuji Photo Film Co Ltd | 画像露光方法およびその装置 |
JP2000238329A (ja) * | 1999-02-24 | 2000-09-05 | Fuji Xerox Co Ltd | 画像形成装置 |
JP2006150772A (ja) * | 2004-11-30 | 2006-06-15 | Kyocera Mita Corp | 画像形成装置 |
JP2008114426A (ja) * | 2006-11-01 | 2008-05-22 | Canon Inc | 画像形成装置及びその制御方法 |
JP2009039945A (ja) * | 2007-08-08 | 2009-02-26 | Canon Inc | 画像形成装置、その制御方法及び制御プログラム |
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JPH09109458A (ja) * | 1995-08-11 | 1997-04-28 | Hitachi Koki Co Ltd | 電子写真装置 |
JP3562263B2 (ja) * | 1997-10-27 | 2004-09-08 | 富士ゼロックス株式会社 | 多色画像形成装置 |
US7003241B1 (en) * | 1998-07-31 | 2006-02-21 | Ricoh Printing Systems, Ltd. | Image recording device and an image recording system |
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JP3600228B2 (ja) * | 2002-03-01 | 2004-12-15 | 株式会社リコー | 光走査装置および画像形成装置 |
US7508407B2 (en) * | 2005-05-31 | 2009-03-24 | Seiko Epson Corporation | Light scanning apparatus, image forming apparatus equipped with such light scanning apparatus, and control method or image forming method for such image forming apparatus |
US7548252B2 (en) * | 2006-02-16 | 2009-06-16 | Canon Kabushiki Kaisha | Optical scanning apparatus and color image forming apparatus using the same |
US8149258B2 (en) * | 2007-06-29 | 2012-04-03 | Canon Kabushiki Kaisha | Image forming apparatus and control method |
JP5369935B2 (ja) * | 2008-09-05 | 2013-12-18 | 株式会社リコー | 画像形成装置 |
-
2009
- 2009-11-27 JP JP2009270102A patent/JP5744391B2/ja active Active
-
2010
- 2010-11-19 EP EP10191807.6A patent/EP2333617B1/en active Active
- 2010-11-19 KR KR1020100115737A patent/KR101401750B1/ko active IP Right Grant
- 2010-11-24 US US12/954,172 patent/US9308743B2/en active Active
- 2010-11-26 CN CN201010568503.0A patent/CN102081229B/zh active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH02131956A (ja) * | 1988-11-14 | 1990-05-21 | Fuji Photo Film Co Ltd | 画像露光方法およびその装置 |
JP2000238329A (ja) * | 1999-02-24 | 2000-09-05 | Fuji Xerox Co Ltd | 画像形成装置 |
JP2006150772A (ja) * | 2004-11-30 | 2006-06-15 | Kyocera Mita Corp | 画像形成装置 |
JP2008114426A (ja) * | 2006-11-01 | 2008-05-22 | Canon Inc | 画像形成装置及びその制御方法 |
JP2009039945A (ja) * | 2007-08-08 | 2009-02-26 | Canon Inc | 画像形成装置、その制御方法及び制御プログラム |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2017024406A (ja) * | 2015-07-16 | 2017-02-02 | キヤノン株式会社 | 画像形成装置 |
JP2017024402A (ja) * | 2015-07-16 | 2017-02-02 | キヤノン株式会社 | 画像形成装置の補正方法 |
JP2017030303A (ja) * | 2015-08-05 | 2017-02-09 | キヤノン株式会社 | 画像形成装置の補正方法 |
JP2017132041A (ja) * | 2016-01-25 | 2017-08-03 | キヤノン株式会社 | 画像形成装置 |
Also Published As
Publication number | Publication date |
---|---|
KR101401750B1 (ko) | 2014-05-30 |
CN102081229B (zh) | 2015-06-03 |
EP2333617B1 (en) | 2019-07-10 |
KR20110059536A (ko) | 2011-06-02 |
JP5744391B2 (ja) | 2015-07-08 |
EP2333617A2 (en) | 2011-06-15 |
EP2333617A3 (en) | 2016-09-07 |
CN102081229A (zh) | 2011-06-01 |
US9308743B2 (en) | 2016-04-12 |
US20110128344A1 (en) | 2011-06-02 |
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