Configurar impresora matricial para cheques.

[Darksan]

Existe la funcion Micro-Adjust :
Adjusting the top-of-form position
The top-of-form position is the position on the page where the printer starts printing. If your printing appears too high or low on the page, you can use the Micro Adjust function to adjust the top-of-form position, as described below.

Por si no tenes el manual, aca va; y la funcion esta en la pagina 32:


Con eso se deberia solucionar tu problema.
Saludos.