TRANVERSE DIMENSION CONTROL IN MULTI-PASS COLOR RECORDING
Original Publication Date: 1985-Apr-30
Included in the Prior Art Database: 2004-Apr-04
Xerox Disclosure Journal
In multiple pass color recording on coated or uncoated paper, it is crucial to achieve dot-on-dot registration in order to get accurate color rendition, especially if the colored marking materials are not perfectly transparent. Accurate registration in the process (paper travel) direction is readily achieved by using marks or perforations along the edges of the web. A lesser, but still significant, problem is achieving good registration across the web (transverse to the paper travel) as the paper width varies in response to moisture changes in the web. If the ambient humidity is significantly different from the inherent paper effective humidity, the moisture level of the paper may either increase or decrease during the processing time of the multi-pass recording. What is needed is a method of rapidly equilibrating the paper with ambient humidity conditions.