What format of Check are you printing? Are you printing 1 large check or a Check and 2 advices?

If the check was previously working perfectly and you print checks and advices the problem may be that the Max details in Specification options is not set properly. This printer driver may be reserving more space for header and footer than before.

This is the calculation for Max details:
In the Max details field, indicate the maximum number of detail lines that will fit on one advice. You will need to calculate this by subtracting the size of the advice header and footer from the height of the advice slip. Then, take that calculation and divide it by the height of your advice detail section(s). (Remember that all advice detail sections must be the same height, so if you have more than one detail section, simply use the height of any one of the detail sections for this calculation.)