Hi Bhipra,
I think this is a topic for Material Management forum rather than a DB one. A common cause of this issue is when the standard SAP print program is not being used. Advise if you are using the standard SAP print program:
Program: SAPFM06P
Routine: ENTRY_NEU
Form: MEDRUCK_PO
If not , retest your issue with the standard print program.
Also, you may want to check this note:
111062 - Printing problems in Materials Management
http://service.sap.com/sap/support/notes/111062
Regards,
Hugo