Xerox 6180N Generic MICR Fundamentals Guide - Page 108
Operational maintenance - cartridges
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Quality control Additional performance considerations The following printing problems also can prevent the reader sorters from identifying a MICR character. Dry ink slivers Dry ink slivers are caused by a sharp point or edge gouging the characters. This gouging could occur at a number of different places within a reader sorter. Damaged or ragged characters Damaged or ragged characters may prevent the reader sorter from identifying a MICR character. If the damage is random and infrequent, it may be due to a paper grain defect. Consistently ragged characters may be caused by a failed dry ink cartridge, or the need for machine service. Character damage may also occur if the paper is sharply creased or folded before printing or during reader sorter processing. Crayoning Crayoning results when material collects on a write or read head and is redeposited on a following document. Frequent occurrence may indicate a defective reader sorter pressure brush. Other possible causes include out-of-adjustment print density, fusing, or a poor choice of paper. Operational maintenance The performance of any mechanical device, whether a highspeed reader sorter or a Xerox printing system, depends on how well it is set up and maintained. Refer to the reference manual for your product to find out how to avoid possible problems. 6-22 Generic MICR Fundamentals Guide