Can You Use MICR Toner In Any Printer?
The MICR line on checks must be printed using magnetic toner. This special toner is only available for laser printers (and some special dot matrix printers.) Inkjet printers can not print MICR! In general, your printer manufacturer will not sell this special toner.
Can you use any printer to print checks?
A Printer (or Printing Company) You can print your own checks with almost any printer: inkjet, laserjet, even offset printers. Some check printers have special features that boost the security of your checks, like watermarks and even thermochromatic ink—but you can use any basic home-office printer, too.
See What You Need Before You Print Your Own Checks - The Balance
Can you use MICR toner for regular printing?
Just like it is possible to print checks with non-MICR toner, it is also possible to print checks using a standard laser printer with a MICR toner cartridge. But we do not recommend that you do that. To be sure that you are meeting ANSI standards, it's best to use MICR toner in a MICR printer when printing checks.
Laser Check Printing: MICR Toner vs. Standard Toner - Relyco
How do I know if my printer is MICR compatible?
Checks come with a special code at the bottom of each one, and this must be printed using magnetic ink. The printer from which you are printing your checks must be MICR-, or Magnetic Ink Character Recognition, compatible.
What Printers Use Magnetic Ink? - InkJetSuperStore -
MICR Printers - MICR Toner Intl