Is there anything 'hard-coded' onto the check specification that prints account information, rather than reading it from the bank?

Manual check batches are assigned to a particular bank when they are created - can you confirm that the ACCESS account was indeed the bank used for the batch?

Which specification field codes are printing the unexpected information? Edit the specification to determine this.

Also ensure that you don't have 2 specifications with the same title. It may be that you are selecting a spec to print with and in fact it is a different spec than what you meant to print with.