AccountEdge does not print bank (ABA) Routing Numbers or Account Numbers in Magnetic Ink Character Recognition (MICR), on checks.
If you need MICR formatted checks, you can order them from https://www.accountedgechecks.com/
The American Bankers Association (ABA) routing number is a 9–digit number assigned to financial institutions by The American Bankers Association (ABA) to identify the financial institution upon which a payment was drawn. Routing numbers are sometimes referred to as "check routing numbers," "ABA numbers," or "routing transit numbers" (RTN). Routing numbers may differ depending on where your account was opened and the type of transaction made.