ANGLED ARRAY SENSOR METHOD AND SYSTEM FOR MEASURING MEDIA CURL

A method and system for accurately measuring a lead edge and a trail edge media curl utilizing an angled array sensor. One or more curled media sheets can be propelled in a process direction via a set of rollers/nips associated with a curler from a leading edge and/or trailing edge towards the angle...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	DE JONG JOANNES N. M
Format:	Patent
Sprache:	eng
Schlagworte:	CINEMATOGRAPHY CONVEYING ELECTROGRAPHY ELECTROPHOTOGRAPHY HANDLING THIN OR FILAMENTARY MATERIAL HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS,CABLES HOLOGRAPHY INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MAGNETOGRAPHY MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS PACKING PERFORMING OPERATIONS PHOTOGRAPHY PHYSICS STORING TESTING TRANSPORTING
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Beschreibung
Zusammenfassung:	A method and system for accurately measuring a lead edge and a trail edge media curl utilizing an angled array sensor. One or more curled media sheets can be propelled in a process direction via a set of rollers/nips associated with a curler from a leading edge and/or trailing edge towards the angled array sensor. The angled array sensor having a rotation vector in the cross-process direction can be placed upstream or downstream of a media-propelling device and at an angle relative to the media sheet exiting the curler in order to calculate a function of sheet curl. The function of sheet curl can be obtained by measuring a point at which the propelled media sheet touches an array associated with the angled array sensor. Such a curl measurement approach enhances accuracy and robustness to environmental induced errors.