So you must use a laser printer to print MICR encoded checks. ... This special magnetic "ink" is only available for laser printers. You must purchase special laser printer toner cartridges that contain magnetic particles. The standard toner cartridges that come with your laser printer will not work.
What do you need to print MICR?
Our printers are brand new HP LaserJet printers with new Advantage-modified MICR toner cartridges. ... Have a question about our MICR check printers? Contact us today at 800-722-2804.
MICR Laser Printers & Accessories
MICR printers use special fonts and magnetic ink or toner to product magnetic characters that are read by electronic data processing systems, such as those used by banks for processing checks. MICR printers can also be used to print load coupons, depository transfers and other MICR-encoded negotiable documents.
MICR Printing - Support - Xerox
MICR Printers - MICR Toner Intl