To verify to verify your host print transform parameters, type the Display Device Description (DSPDEVD) command to display the printer device description. If the default value *MFRTYPMDL was specified for the PPRSRC1, PPRSRC2, and ENVELOPE parameters, the system-supplied values are shown when the device description is displayed.
Use the Change Device Description (Printer) (CHGDEVPRT) command to change any parameter values that are not correct for your printer.