Do You Need Magnetic Ink To Print Checks?
However, the magnetic ink has always been legally required on the check as a payment instrument and that requirement still exists today. According to the Federal Reserve and the Accredited Standards Committee X9 (for financial industry standards), in order for a check to be treated as a cash item, it must contain MICR.
Can I print a check without MICR ink?
Yes, an eCheck will still work without MICR ink. Even though the codeline is printed in regular printer toner, your bank is still able to capture an image of the check and send it to the automated clearing house to request funds from the issuing account.
Will this eCheck work without magnetic ink (aka MICR ink)?
Can you print a check with regular ink?
Yes, technically, but the bank will hate you when you go to cash it. The magnetic ink allows them to run it through their machine. If you print with regular ink, they have to type in the account number (they are the bank, so they don't need to type in the routing number). But basically, a check is an IOU.
Can I print my own checks on a regular paper? - Quora