METHOD AND APPARATUS FOR TRANSVERSE IMAGE REGISTRATION ON PHOTORECEPTIVE BELTS

A method and apparatus for transverse registration of image exposures on photoreceptive belts (12) subject to lateral deviation from linear travel in which targets (T1, T2, T3), corresponding in location to the image areas (l1, l2, l3) to be exposed, are used for the detection of lateral belt displa...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	WONG, LAM FUN, NOWAK, WILLIAM J, HOU, SSUJAN, KLUGER, JACOB N, DURFEY, LLOYD W, COSTANZA, DANIEL W, ARNONE, STEPHEN C
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING CINEMATOGRAPHY COMPUTING CORRECTION OF TYPOGRAPHICAL ERRORS COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY ELECTROGRAPHY ELECTROPHOTOGRAPHY HOLOGRAPHY i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME IMAGE DATA PROCESSING OR GENERATION, IN GENERAL LINING MACHINES MAGNETOGRAPHY PERFORMING OPERATIONS PHOTOGRAPHY PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION PRINTING SELECTIVE PRINTING MECHANISMS STAMPS TRANSPORTING TYPEWRITERS
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	A method and apparatus for transverse registration of image exposures on photoreceptive belts (12) subject to lateral deviation from linear travel in which targets (T1, T2, T3), corresponding in location to the image areas (l1, l2, l3) to be exposed, are used for the detection of lateral belt displacement and to control the transverse location of exposure scan. The targets are of a pattern defining a reference line and a line inclined with respect to the direction (18) of belt travel so that the duration of time between passage of the target lines with respect to a spacially fixed sensing axis in a sensor (36) will vary with lateral displacement of the belt. The targets may assume a variety of specific patterns and the invention is applicable to single and multi-pass image exposure systems as well as to both modulated laser and light emitting diode types of exposure devices.