Aufzeichnungsabtaster mit Steuerung der Punktposition in der Nebenabtastrichtung

Compensation for process direction motion of a photoreceptor (24) in a Raster Output Scan system is provided by moving the cylinder lens (16) located between the laser source (12) and a rotating spot scanning mechanism, e.g., a polygon (20). The cylinder lens is moved in the process direction in res...

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Bibliographische Detailangaben
Hauptverfasser:	APPEL, JAMES J., BRIGHTON, NEW YORK 14618, US, OSSMAN. KENNETH R., OSSMAN. KENNETH R., MACEDON, NEW YORK 14502, US
Format:	Patent
Sprache:	ger
Schlagworte:	CALCULATING COMPUTING CORRECTION OF TYPOGRAPHICAL ERRORS COUNTING ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY HANDLING RECORD CARRIERS i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME LINING MACHINES OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PERFORMING OPERATIONS PHYSICS PICTORIAL COMMUNICATION, e.g. TELEVISION PRESENTATION OF DATA PRINTING RECOGNITION OF DATA RECORD CARRIERS SELECTIVE PRINTING MECHANISMS STAMPS TRANSPORTING TYPEWRITERS
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Beschreibung
Zusammenfassung:	Compensation for process direction motion of a photoreceptor (24) in a Raster Output Scan system is provided by moving the cylinder lens (16) located between the laser source (12) and a rotating spot scanning mechanism, e.g., a polygon (20). The cylinder lens is moved in the process direction in response to error signals generated by a start of scan (SOS) detector (30) and timing marks (34) on the photoreceptor drum surface, or an encoder on the drum shaft. The lens movement is obtained by sending motion error signals to a piezo-electric actuator (18) which increases in length to impart the desired motion to the cylinder lens.