PRINT IMAGE INSPECTION DEVICE AND PRINTING DEVICE EQUIPPED WITH THE SAME

To provide a print image inspection device and the like that can faithfully image print images and accurately inspect the print images, even if printing continues for a long time.SOLUTION: A printing device is provided with a colorimeter 40 for calibrating imaging by an inline scanner 30 for inspect...

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Bibliographische Detailangaben
Hauptverfasser:	TAKAGI YUYA, YAMAMOTO TAKAHARU, NARASAKI MINORU
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CALCULATING COLORIMETRY COMPUTING CORRECTION OF TYPOGRAPHICAL ERRORS COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME IMAGE DATA PROCESSING OR GENERATION, IN GENERAL LINING MACHINES MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT MEASURING PERFORMING OPERATIONS PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION PRINTING RADIATION PYROMETRY SELECTIVE PRINTING MECHANISMS STAMPS TESTING TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	To provide a print image inspection device and the like that can faithfully image print images and accurately inspect the print images, even if printing continues for a long time.SOLUTION: A printing device is provided with a colorimeter 40 for calibrating imaging by an inline scanner 30 for inspecting a print image. The printing device updates a correction coefficient LUT for imaging calibration based on imaging data and colorimetric data for calibration obtained by imaging by the inline scanner 30 for a test pattern image 51 formed on a paper 5 and colorimetry by the colorimeter 40 during printing operation, and calibrates imaging by the inline scanner 30 in real time based on the correction coefficient LUT.SELECTED DRAWING: Figure 5 【課題】長時間にわたって印刷が継続しても印刷画像を忠実に撮像して精度よく印刷画像を検査できる印刷画像検査装置等を提供する。【解決手段】印刷装置において、印刷画像を検査するためのインラインスキャナ３０による撮像を校正するための測色計４０が設けられている。印刷動作中において、用紙５に形成されたテストパターン画像５１に対するインラインスキャナ３０による撮像と測色計４０による測色により得られる校正用の撮像データと測色データに基づき、撮像校正のための補正係数ＬＵＴを更新し、この補正係数ＬＵＴに基づきインラインスキャナ３０による撮像をリアルタイムで校正する。【選択図】図５