>Sorry if these questions seem novice, but I'm new to MICR...

www.Chequesource.com are canadian printing company. Their clients(mainly banks, credit unions, etc.) use Troy printers. We made for them cheque printing program.
Their requirement was all face content to be done on one pass. If you will print more 100 cheques per day it will be more costly to print cheques twice or use preprinted cheques, than cost of the toner.