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03-19-2012 09:49 PM
HP Officejet Pro 8500 A909a
Windows 7 Service Pack 1
Error message: "The handle is invalid"
I have 5 computers on a home network all running Win 7.
The 8500 is connected to Computer A via USB.
I can install the 8500 on the other 4 computers (B-E). On each one it shows as "HP Officejet 8500 A909a Series on A".
I can print on computers B & C without a problem.
When I try on computers D & E a yellow triangle exclamation point error appears. It reads: "The handle is not valid" and nothing prints. Somewtimes it's C & D that can print and it's B & E that can't. It's almost like it hits a limit of some sort.
I tried disconnecting the USB cable and installing the printer directly on the network. All 5 computers can print BUT after a couple of hours the network fails and I have to reset the router.
I have the latest firmware and print drivers. I have tried removing, resetting and reinstalling the printer to no avail.
Any help would be appreciated. Thank you.
03-21-2012 03:21 PM
Welcome to the community and thank you for providing a complete picture of your issue this will make everybody in the community understand the issue,
Just as a quick recommendation did you try the Network diagnostic tool
It may share light on where the issue may be
Hope it helps;
03-21-2012 04:42 PM
The Diagnostic Utility offers no valuable information at this time.
I will unplug the USB cable to the printer and reconnect it with the ethernet line.
Then I will use the diagnostic tool right away and again when the Internet connection drops (which it will but it may take a few hours).
I will report what happens.
Thanks for taking interest is this issue.
p.s. I have a Panasonic KX-MB781 laser printer on the network and the Diagnostic Utility did not find it despite my being able to print to it and despite the Utility displaying its IP address in the Display Detected Network Devices button in the Advanced Tools Screen.
03-23-2012 10:34 AM
OK. I unplugged the USB cable and reconnected the LAN cable to the printer and as I expected the Internet access failed. I then ran the diagnostic tool to no avail. However, I then loaded the tool on a flash drive, rebooted the router, quickly ran the tool on one of the computers that was reporting "handle invalid" and discovered that the drivers for the printer on that computer were out of date. I installed the new drivers and viola! The network now appears stable and the printer is working via ethernet on all computers.
ONE MORE IMPORTANT BIT OF INFORMATION: I also gave the printer a static IP address. This means that I can't be sure it it was the old driver or the new static IP address that resolved the problem and I really don't want to go through another round of experimenting.
I have little faith in all this so I'll reserve final judgement for a week or so.
I PROMISE to report back in about a week to let everyone know how things turn out.
Thanks for the help.
03-23-2012 11:02 AM
No Problem Glad that is working and thanks for sharing the detailed steps taken in particular, that running the tool for a flash drive help you find that the driver was out of date this may help a lot others. Hopefully this is a permanent solution for you.
Thanks and best of luck;