The MICR font is a specially shaped collection of numbers and symbols for which automated reading equipment was developed years ago in the banking industry. It is seen on the bottom of all U.S. and Canadian Checks, eCommerce Drafts, and deposit slip printing. It is commonly available for use with PCL and Postscript printers.
Years of experience have taught me that MICR problems are related to the paper or toner more often than to the printer. If the fuser is reaching a minimal temperature and the print is not fuzzy, the printer is doing its job. The problem is more likely with A) the toner falling off the paper in use (usually a paper issue) or B) insuffecient magnetic material in the toner (usually a toner issue). Actually, the problem is most often incorrect formatting or positioning of the MICR line.
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All-Ink.com offers quality MICR toner cartridges for most printers:
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