Xerox 6180N Generic MICR Fundamentals Guide - Page 125
proper agency to investigate the document-to-head pressure
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Problem solving Document damage Even subtle damage can ruin a document. Characters may be cut by sharp edges within the reader sorter. If there are wrinkles in the document, the reader sorter may be causing its own errors. Leading edge damage in the reader sorter is a common problem with short-grain documents. Check to find out if the paper stock was damaged in some way before it went through the laser printer. Damage can include spots, weak areas in the paper, and creases. If possible, obtain quantity samples of the stock to assess its quality before a print run. Excessive ink smears Abrasion should be negligible in a well adjusted reader sorter. However, at speeds of up to 400 inches per second, treatment may be rough enough to abrade paper. If there are many smears, investigate the following causes: • Stock incompatibility • Paper surface too rough or too smooth • Paper moisture content too high • Poor dry ink adhesion to the paper Since the reader sorter operation is usually not under the supervision or control of the check issuing agency, ask the proper agency to investigate the document-to-head pressure (either the read or the write head) in the reader sorter. Paper size and characteristics Make sure that the paper requirements for both the printer and the reader sorter are met. MICR line format Check for the following in the MICR line: • Is there anything unusual about the content or intended position of the MICR line? • Are the MICR line content and position correct? • Are there any dependencies between the MICR line and the reader sorter control documents? Generic MICR Fundamentals Guide 7-13