2008 R2 Print server reprinting print jobs from one user after reboot

environment:

single server 2008 r2 print server logging enabled.  have 24 printers shared server.  10-15 pc's printing through server.  bidirectional printing not enabled on printer.  printers have updated firmware , drivers , server date on patches.

history:

a user yesterday printed big print jobs printer (i refer user a).  stated printed 5 times single printer (canon imagerunner).  log on print server shows 11 print jobs printed.  5 of print jobs had same name different page counts 1 page 846 pages.  3 jobs had same name different pages, , 2 same name , different page counts.  log shows of these print jobs these event id's, 800, 801, 842, 805, 307.  looked @ system, application, , security logs not show events around times printing took place.

other users printed same printer yesterday multiple sizes of page counts same event id's.  1 print job per user per print.

problem:

everything looked normal above print jobs (other multiple jobs single print user), when print server rebooted morning, of print jobs user printing canon ir reprinted, 2,500 pages worth.  no errors seen, no events other same events when printed yesterday.  pc shutdown overnight.  server reboots @ 5am , pc not powered on until 8am.  print jobs reprinted morning @ 5:30am.

i've looked through logs on pc, server, , printer, did searching on internet, can't find reason jobs have reprinted.  did find spooler reprint jobs after reboot if not completed, jobs did complete.  i'd see if has suggestions find out happened , why jobs specific user reprinted , maybe why print job split up?

thank in advance :)

went canon's website, downloaded generic driver , verified current used driver latest version.  switched printer object on server use generic driver, , deleted , reinstalled printer object on users pc , ran test print.  time after job printed, checked server , job remained in queue.  searched , found post:

http://social.technet.microsoft.com/forums/en-us/winserverprint/thread/6e72268f-4ec2-43a2-9a29-750204b02c3f/

we did remove default permissions printers on server creater/owner permission removed.  went drivers section, changed driver isolation of canon drivers , set isolation none.  printed test print users pc , checked queue , job did removed queue.  rebooted server , didn't reprint.

doing seems have fixed problem.

Windows Server  >  Print/Fax