We've got ongoing problems with print jobs taking 5-15 minutes to be printed to our HP LaserJet 4250 printers. The print job comes out, but doesn't get released from the queue. Then they'll attempt to print something else, and it takes 15 minutes, and each subsequent job is delayed just the same. This occurred on our 32-bit Windows 7 machines and now our 64-bit Windows 7 machines, which we updated a couple months ago. We are using the PCL 5 driver via Windows Update, installed locally on each machine via a standard TCP/IP port. They are setup with static IP addresses and do not use DHCP or BOOTP. To try and resolve this issue, I've disabled all IPX/SPX, AppleTalk, and DLC/LLC. I've also disabled SLP, mDNS, LPD, telnet, Multicast IPv4, FTP and IPP, leaving only 9100 printing available. I've tried using the universal driver from HP as well as the PCL5 and 6 drivers from Windows Update. To temporarily resolve it, I'll reboot the computer as well as the printer, and the users will print fine for about 2-4 weeks and then it reoccurs. I've tried stopping the print spooler service, deleting the job manually, then restarting the service but the problem immediately reoccurs. I've tried replacing the formatter board on one of the but it reoccurred. Sometimes I have to perform a cold reset on the printer and then that resolves it for the same 2-4 week period. I've tried making network changes from replacing Ethernet cables to changing the switch ports to strip out quality of service and preventing it from receiving any voice traffic from the voice vlan. I checked in Event Viewer under and don't see any entries logged, nor do I see error on the printer logs. We have about 30 of these printers and they all experience this behavior at one time or another. Is anyone aware of other steps I can try? Thanks!
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