optical mehrfachstrahlabtastsystem with telezentrischen hauptaustrittstrahlen

摘要

A system for eliminating differential scan line bow from raster output scanners aligns at least the chief exit ray (66, 67) of each scanning light beam (61, 62) with the system axis (65). By aligning the chief exit rays to be essentially parallel to the system axis, the overall bow is reduced, and the bow of different scan lines (63, 64) is essentially identical. Thus, bowed scan lines from different stations in a multi-station printer, or from different passes in a multi-pass printer are generally identical and aligned. IMAGE