CROP MARK DETECTOR AND CUTTING APPARATUS COMPRISING THE SAME

To provide a crop mark detector allowing for improving the detection accuracy while suppressing the cost increase thereof.SOLUTION: A crop mark detector comprises a light emitter 57 that illuminates light toward a medium 5, a light receiver 58 that receives reflection light from the medium 5, an out...

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Bibliographische Detailangaben
Hauptverfasser:	FUJIMOTO KIYOSHI, CHIDA YUDAI, YAMAMOTO SHINYA, HAGIMORI HIRO, OKAMOTO KIMINARI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CONVEYING CORRECTION OF TYPOGRAPHICAL ERRORS HANDLING THIN OR FILAMENTARY MATERIAL HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME LINING MACHINES PACKING PERFORMING OPERATIONS PRINTING SELECTIVE PRINTING MECHANISMS STAMPS STORING TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	To provide a crop mark detector allowing for improving the detection accuracy while suppressing the cost increase thereof.SOLUTION: A crop mark detector comprises a light emitter 57 that illuminates light toward a medium 5, a light receiver 58 that receives reflection light from the medium 5, an output circuit 22 that is configured to output a higher voltage as the reception-light quantity of the light receiver 58 increases, in a range of a predetermined power voltage or lower, and a detection circuit 28 that determines whether or not the output voltage of the output circuit 22 is equal to or lower than a threshold and if equal to or lower than a threshold, detects a crop mark 8.SELECTED DRAWING: Figure 6 【課題】クロップマーク検出装置のコストアップを抑えつつ検出精度を向上させること。【解決手段】メディア５に向けて光を照射する発光器５７と、メディア５からの反射光を受光する受光器５８と、所定の電源電圧以下の範囲にて、受光器５８の受光量が多くなるほど高い電圧を出力するように構成された出力回路２２と、出力回路２２の出力電圧が閾値以下か否かを判定し、閾値以下の場合にクロップマーク８を検出する検出回路２８と、を備える。【選択図】図６