"Set input tray" command

Dear all,

First of all i want to say excuse.

May i post my question at the wrog thread but i will try.

My costumer is using Net weaver vers 7.03 and my printer is handling the bypass tray paper size incorrectly.

Allway the request fro letter Paper size but A4 format is inside the papertray.

The prinout will be done in letter format shifterd onto A4 paper.

I need to know the details of the command "Set input tray" from Netweaver.

Hopefully sombody can help me.

Best regards,