Spool should be delete after output printing

Dear Experts,

As suggested in SDN we have define 'Delete after Output'  option in SU3>Default setting, but system not delete spool automatically after print billing document (VF02). we have required that system should be automatically delete the spool request after printing billing document. (Request should not be display in SP02 after printing)

Please help.

Regards

BK GAIKWAD