Signature on Checks using SAP SCRIPT

Hi,

I am looking for some help on how to get the Printer Resident Singature on to the Check using SAP Script. We have a HP LaserJet 4250 Priter in which the Chip Contains the Signature ( Printer Resident Singaure ) and currently the external application is able to print this signature on the checks. Right now we are in Migration to SAP and we are trying to get this Signature to print on the Check using SAP Script.

Any idea how this can be done?