This bug has been copied from bug #561946 and has been proposed to be backported to 5.5 z-stream (EUS).
Technical note added. If any revisions are required, please edit the "Technical Notes" field accordingly. All revisions will be proofread by the Engineering Content Services team. New Contents: Previously, sending a document to a network printer using the socket URI scheme could cause the actual printing to be delayed. This was due to the fact that the socket back-end used to wait for any pending back-channel data, even though the wait time option was set to zero. With this update, the pertinent "wait_bc" function call has been removed, and printing the document is no longer delayed.
An advisory has been issued which should help the problem described in this bug report. This report is therefore being closed with a resolution of ERRATA. For more information on therefore solution and/or where to find the updated files, please follow the link below. You may reopen this bug report if the solution does not work for you. http://rhn.redhat.com/errata/RHBA-2010-0614.html