JP4891564B2 - マーキングシステムにおける高周波バンディングの測定および制御 - Google Patents
マーキングシステムにおける高周波バンディングの測定および制御 Download PDFInfo
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- JP4891564B2 JP4891564B2 JP2005149550A JP2005149550A JP4891564B2 JP 4891564 B2 JP4891564 B2 JP 4891564B2 JP 2005149550 A JP2005149550 A JP 2005149550A JP 2005149550 A JP2005149550 A JP 2005149550A JP 4891564 B2 JP4891564 B2 JP 4891564B2
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- banding
- high frequency
- test pattern
- frequency
- exemplary embodiments
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Classifications
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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
- H04N1/00002—Diagnosis, testing or measuring; Detecting, analysing or monitoring not otherwise provided for
-
- 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
- H04N1/00002—Diagnosis, testing or measuring; Detecting, analysing or monitoring not otherwise provided for
- H04N1/00007—Diagnosis, testing or measuring; Detecting, analysing or monitoring not otherwise provided for relating to particular apparatus or devices
- H04N1/00015—Reproducing apparatus
-
- 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
- H04N1/00002—Diagnosis, testing or measuring; Detecting, analysing or monitoring not otherwise provided for
- H04N1/00026—Methods therefor
- H04N1/00031—Testing, i.e. determining the result of a trial
-
- 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
- H04N1/00002—Diagnosis, testing or measuring; Detecting, analysing or monitoring not otherwise provided for
- H04N1/00026—Methods therefor
- H04N1/00045—Methods therefor using a reference pattern designed for the purpose, e.g. a test chart
-
- 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
- H04N1/00002—Diagnosis, testing or measuring; Detecting, analysing or monitoring not otherwise provided for
- H04N1/00026—Methods therefor
- H04N1/00053—Methods therefor out of service, i.e. outside of normal operation
-
- 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
- H04N1/00002—Diagnosis, testing or measuring; Detecting, analysing or monitoring not otherwise provided for
- H04N1/00026—Methods therefor
- H04N1/00063—Methods therefor using at least a part of the apparatus itself, e.g. self-testing
-
- 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
- H04N1/00002—Diagnosis, testing or measuring; Detecting, analysing or monitoring not otherwise provided for
- H04N1/00026—Methods therefor
- H04N1/00068—Calculating or estimating
-
- 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
- H04N1/00002—Diagnosis, testing or measuring; Detecting, analysing or monitoring not otherwise provided for
- H04N1/00071—Diagnosis, testing or measuring; Detecting, analysing or monitoring not otherwise provided for characterised by the action taken
- H04N1/00082—Adjusting or controlling
- H04N1/00087—Setting or calibrating
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Control Or Security For Electrophotography (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Length Measuring Devices By Optical Means (AREA)
Description
[上半部における最大ピークの位置+下半部における最大ピークの位置]/2 (1)
あるいは、ビート周波数は、次式(2)で計算することができる。
[上半部における最小ピークの位置+下半部における最小ピークの位置]/2 (2)
Rhf=R0+ΔRsin(2πΩhf×x) (3)
ここに、Rhfは印刷媒体の処理方向にある位置xにおける高周波バンディングの反射率、R0はx=0である場合の高周波バンディングの平均反射率、ΔRは処理方向にあるx軸に沿った反射率の変化、Ωhfは高周波バンディングの周波数である。
Gtp=G0+ΔGsin(2πΩtp×x) (4)
ここに、Gtpは処理方向xを横断するテストパターンのグレーレベル、G0はx=0の場合のグレーレベル、ΔGは処理方向xに沿ったグレーレベルの変化、Ωtpはテストパターンの周波数である。
Rsensor=R0+ΔRsin[2π(Ωhf−Ωtp)x]sin[2π(Ωhf+Ωtp)x] (5)
通常、周波数が高過ぎてセンサーにより検知できないため、光学センサーは第2の正弦関数には応答しない。
位相=(最大ピークから高周波バンディングの周波数までの距離)×(π/2)×(高周波バンディングの四分の一周期) (6)
または、
位相=(最小ピークから高周波バンディングの周波数までの距離)×(π/2)×(高周波バンディングの四分の一周期) (7)
Claims (1)
- 印刷された画像内に形成され明暗部分が交互に現れる高周波バンディングを測定する方法であって、
周期的に並んだ複数のラインを含む少なくとも1個のテストパターンを印刷媒体に作成するステップと、
1個以上のセンサーにより、前記少なくとも1個のテストパターンと前記高周波バンディングとの重ね合わせによって前記印刷媒体に形成されたパターンを検知するステップと、
前記検知されたパターンのビート周波数を特定するステップと、
前記特定されたビート周波数に前記テストパターンの周波数を加算することにより、前記高周波バンディングの周波数を特定するステップと、
を含む方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/852,243 | 2004-05-25 | ||
US10/852,243 US7283143B2 (en) | 2004-05-25 | 2004-05-25 | Measurement and control of high frequency banding in a marking system |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005338835A JP2005338835A (ja) | 2005-12-08 |
JP4891564B2 true JP4891564B2 (ja) | 2012-03-07 |
Family
ID=34939971
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2005149550A Expired - Fee Related JP4891564B2 (ja) | 2004-05-25 | 2005-05-23 | マーキングシステムにおける高周波バンディングの測定および制御 |
Country Status (3)
Country | Link |
---|---|
US (1) | US7283143B2 (ja) |
EP (1) | EP1601178B1 (ja) |
JP (1) | JP4891564B2 (ja) |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008505782A (ja) * | 2004-07-07 | 2008-02-28 | ヒューレット−パッカード デベロップメント カンパニー エル.ピー. | モアレパターンを用いてバンディングを検出するための方法及び装置 |
US7911652B2 (en) * | 2005-09-08 | 2011-03-22 | Xerox Corporation | Methods and systems for determining banding compensation parameters in printing systems |
JP4555212B2 (ja) * | 2005-11-10 | 2010-09-29 | 株式会社沖データ | 透かし情報埋め込み装置,透かし情報埋め込み方法,およびコンピュータプログラム |
US7492381B2 (en) * | 2005-12-21 | 2009-02-17 | Xerox Corporation | Compensation of MPA polygon once around with exposure modulation |
US7561747B2 (en) * | 2005-12-23 | 2009-07-14 | Xerox Corporation | Image data processing system and method |
US8194262B2 (en) * | 2006-02-27 | 2012-06-05 | Xerox Corporation | System for masking print defects |
US20070247514A1 (en) * | 2006-04-25 | 2007-10-25 | Ran Waidman | Automatic laser power uniformity calibration |
US7623271B2 (en) * | 2006-06-09 | 2009-11-24 | Xerox Corporation | Automatic grainy noise control for optimal macro uniformity appearance |
JP2008233187A (ja) * | 2007-03-16 | 2008-10-02 | Ricoh Co Ltd | 速度変動検知装置、画像形成装置及び速度変動検知方法 |
US7962056B2 (en) | 2006-12-25 | 2011-06-14 | Ricoh Company, Ltd. | Method and apparatus for speed change detection based on a latent image pattern |
JP2008173869A (ja) * | 2007-01-19 | 2008-07-31 | Konica Minolta Business Technologies Inc | 画像処理装置及びテスト制御方法 |
US7855806B2 (en) * | 2007-06-27 | 2010-12-21 | Xerox Corporation | Banding profile estimator using multiple sampling intervals |
US7564475B1 (en) | 2008-03-28 | 2009-07-21 | Xerox Corporation | Compensation of high frequency banding in printing systems |
JP5434028B2 (ja) * | 2008-09-26 | 2014-03-05 | 富士ゼロックス株式会社 | 位相差検出装置及びこれを用いた画像形成装置 |
US7834900B2 (en) * | 2009-02-03 | 2010-11-16 | Xerox Corporation | Method and apparatus for correcting banding defects in a photoreceptor image forming apparatus |
US8427695B2 (en) * | 2009-07-15 | 2013-04-23 | Eastman Kodak Company | Setting of imaging parameters |
US8446640B2 (en) * | 2009-07-15 | 2013-05-21 | Eastman Kodak Company | Setting of imaging parameters using a scanner |
US8213816B2 (en) * | 2009-08-27 | 2012-07-03 | Xerox Corporation | Method and system for banding compensation using electrostatic voltmeter based sensing |
JP5578823B2 (ja) * | 2009-09-29 | 2014-08-27 | キヤノン株式会社 | 画像形成装置、及び濃度ムラ検出方法 |
JP5570310B2 (ja) * | 2010-06-07 | 2014-08-13 | キヤノン株式会社 | 画像形成装置 |
US8351081B2 (en) | 2010-07-20 | 2013-01-08 | Xerox Corporation | Digital printing control using a spectrophotometer |
US8514470B2 (en) * | 2010-12-08 | 2013-08-20 | Xerox Corporation | Digital printing control using a spectrophotometer |
US8736894B2 (en) * | 2011-12-20 | 2014-05-27 | Eastman Kodak Company | Producing correction data for printer |
JP2015082005A (ja) * | 2013-10-22 | 2015-04-27 | 富士ゼロックス株式会社 | 画像形成装置、及びプログラム |
US11626663B2 (en) * | 2019-01-24 | 2023-04-11 | Intellian Technologies, Inc. | Band changer and communication system including the band changer |
US11934712B2 (en) | 2021-11-17 | 2024-03-19 | Xerox Corporation | System and method for automatically diagnosing media handling defects in a printing device |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61157170A (ja) * | 1984-12-28 | 1986-07-16 | Canon Inc | 画像処理装置 |
JP3029133B2 (ja) * | 1990-03-27 | 2000-04-04 | キヤノン株式会社 | 測定方法及び装置 |
US5877494A (en) * | 1996-07-29 | 1999-03-02 | Agfa Division, Bayer Corporation | Beam error correction using movable correction element |
JP3633764B2 (ja) * | 1997-11-14 | 2005-03-30 | 株式会社リコー | バンディングの定量化方法 |
JP3085290B2 (ja) * | 1998-09-14 | 2000-09-04 | 株式会社ニコン | 走査露光装置及び方法 |
US6584233B1 (en) * | 1999-07-19 | 2003-06-24 | Eastman Kodak Company | Method for determining the components of image noise patterns of an imaging device and use of this method in an imaging device |
JP2001261192A (ja) * | 2000-03-21 | 2001-09-26 | Sharp Corp | 画像形成装置 |
US6710795B2 (en) * | 2001-04-11 | 2004-03-23 | Eastman Kodak Company | Tuning a printer by printing patterns which beat against a spatial frequency of a component within the printer |
JP2004534949A (ja) * | 2001-07-05 | 2004-11-18 | フォトン・ダイナミクス・インコーポレーテッド | モアレ抑制方法および装置 |
US6950211B2 (en) * | 2001-07-05 | 2005-09-27 | Corel Corporation | Fine moire correction in images |
US6862414B2 (en) * | 2002-01-30 | 2005-03-01 | Xerox Corporation | Automated banding defect analysis and repair for document processing systems |
JP2004050452A (ja) * | 2002-07-16 | 2004-02-19 | Ricoh Co Ltd | 画像評価装置及び画像評価方法 |
US7120369B2 (en) * | 2004-05-25 | 2006-10-10 | Xerox Corporation | Method and apparatus for correcting non-uniform banding and residual toner density using feedback control |
-
2004
- 2004-05-25 US US10/852,243 patent/US7283143B2/en active Active
-
2005
- 2005-05-23 JP JP2005149550A patent/JP4891564B2/ja not_active Expired - Fee Related
- 2005-05-25 EP EP05104463A patent/EP1601178B1/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US20050275855A1 (en) | 2005-12-15 |
EP1601178A3 (en) | 2008-02-20 |
EP1601178A2 (en) | 2005-11-30 |
JP2005338835A (ja) | 2005-12-08 |
US7283143B2 (en) | 2007-10-16 |
EP1601178B1 (en) | 2012-08-15 |
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