As long as it's a standard size, has the MICR line, and has the information that a check needs, your bank is likely to be fine with it. Generally, if you get your blank checks printed up by any reputable firm, they'll have similar information in similar places, as well as the MICR line (the account and routing number in magnetic ink on the bottom) to allow for bank to process the checks with automated equipment. What kind of checks your bank will process is technically up to them. Legally, a check just needs to have a certain list of things (be an instruction to one's bank to pay a specific amount of money to bearer or to a specific entity, have a date, have a signature, etc.) There are anecdotes around of a guy depositing a junk mail check and it accidentally qualifying as a real check (which he turned into a live show), or of writing a check on a door, cow, or 'the shirt off your back'.
