This error occurs usually due to some configuration errors on your printer. This may cause printer to stop working. The printer will not take any print job instruction and will repeatedly show the error message ‘unsupported protocol’.
Troubleshooting Steps HP Printer PCL XL Error Kernel Unsupported Protocol
Let’s discuss few troubleshooting methods which can be followed to solve this error.
Method1- Change the default printer settings
- On your windows, select the start button then click on the settings option
- In the settings option, right click on the printer option
- Right click on the your printers driver icon
- Select the properties from the drop -down menu
- Select the general tab
- Select the print processor
- Set the default data typesetting to RAW and then select ok
- Select OK to return to your desktop screen
- Try to print a test page to see if the issue has been resolved. If the printer works, the method is a success in troubleshooting. If the method does not resolve the HP Printer Error it is recommended to continue with the next method
Method 2- Reboot the printer
- Turn off the power button of the printer
- Disconnect the power cord from the power socket
- Remove the USB port if connected to the computer
- Wait for at least 30 seconds before resuming the power on back
- After restarting the printer, try to print a test document. If the error still persists it is recommended to carry on the troubleshooting method
Method 3 – Reinstall the printer driver
- Remove the USB cable of the printer from your computer device
- Search the Devices and Printers tab on your windows
- Right click on the Printer icon and hit the Remove Device tab
- The computer will now remove the printer software from your computer. Restart the computer after completing the installation process.
- Go to HP support-Software and drivers to download the printer software. There will be a list of HP models listed on the screen. Select and hit the tab on the model that matches your printer
- Install the software by following the instructions displayed on the HP website.
- After successful installation, try to print the page again to test if the issue has been resolved or not. If the error persists the troubleshoot needs to continue.
Method 4- Uninstall the HP printer and reinstall it
- In windows search for Devices and Printers
- Hit the devices and printers option and click on the HP printer
- Right click on it and choose the option delete or remove device
- Open the run command with “Windows key and R” key combo
- Type print.exe/s and click OK
- Click on the Drivers tab
- Look for the HP printers driver
- Click on it and select ok
- Close the devices and printers page
- You can then reinstall the printer software from the HP link
- Choose the model of your HP printer and follow the instructions on the screen
- After this process, print a test document and check if the issue has resolved or not. If the issue is not resolved you need to take the next troubleshooting step
- Remove the USB cable of the printer from your computer device
- Search the Devices and Printers tab on your windows
- Right click on the Printer icon and hit the Remove Device tab
- The computer will now remove the printer software from your computer. Restart the computer after completing the installation process.
- Go to HP support-Software and drivers to download the printer software. There will be a list of HP models listed on the screen. Select and hit the tab on the model that matches your printer
- Install the software by following the instructions displayed on the HP website.
- After successful installation, try to print the page again to test if the issue has been resolved or not. If error persists then the troubleshoot needs to be continued
Scope of Services
If the above stated methods do not resolve the issues or you are not able to carry out the procedures mentioned above then you need to Dial 
- Kindly contact Printer Support Phone Number on our toll free number to get in touch with the technical team.
The technical team is available 24/7, all 365 days a year at your service. The technical experts are known for its timeliness and effectiveness.
June 5, 2018November 24, 2019
17 Replies
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Do you have a Postscript driver available for Windows 7 for it? If so, try that.
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I should have it. Why would the driver be an issue if the current driver was working before?
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It’s not the same driver. Windows 7 uses different drivers than Windows XP.
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Sounds like a driver issue on the Windows 7 machines.
Are you printing directly to the Kyocera or are you using a print server with a shared printer?
I would also try the Universal driver for your model and see if that works.
http://www.kyoceradocumentsolutions.eu/index/service/dlc.false.driver.FS3920DN._.EN.html Opens a new window
Get the one listed Classic KPDL / PCL5e/c / PCL6 Universal Driver (certified and signed by Microsoft)
Report back your findings
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Sorry I guess I should have included this. We have 3 Kyocera 3920DN printers and those are working just fine and the machines were running on Win 7. Why all of a sudden would 1 go down and the others work just fine? Driver is the same.
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So you can print to the problem one from XP without issue?
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Sorry I guess I should have included this. We have 3 Kyocera 3920DN printers and those are working just fine and the machines were running on Win 7. Why all of a sudden would 1 go down and the others work just fine? Driver is the same.
Yes, that does make a difference. Just to be clear though, on the machines that can print correctly, is it just this one printer giving the error? Or if these Windows 7 machines print to any 3920DN does this happen?
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Greg — Yes
Larry — Just this one printer is giving this error. Other printing just fine.
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lupeleal wrote:
Larry — Just this one printer is giving this error. Other printing just fine.
Can anyone print to that one printer? Have you power cycled the printer? Are you printing direct to it or through a print server? If through a print server have you stopped and started the print spooler service on the print server?
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I agree with Larry
Also we need to know how you are printing to these units, directly over TCP/IP or via a Print Server????
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We use Novell’s iPrint to install printers. Employees go to our print server and select printer they want to install. I have not done anything with the print spooler because all other printers are working just fine.
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lupeleal wrote:
We use Novell’s iPrint to install printers. Employees go to our print server and select printer they want to install. I have not done anything with the print spooler because all other printers are working just fine.
So the print server is not a windows server, correct?
Also:
Can anyone print to that one printer? Have you power cycled the printer?
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Try setting up the problem printer on Windows 7 and print directly to TCP/IP
Let us know if that works
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Dunec
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Install the KX Driver, then go to printer properties, Device Settings, Click PDL, Change from PCL XL to PCL 5e. Problem solved.
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Still waiting to see the issue was fixed. Printer in a bldg I don’t have access to. So can’t go over and check.
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Anytime I come across a printing error, or where it just prints incorrectly. I just switch to the opposite drive.
I’ve seen stuff not look right with PS drivers, so I have them switch to a PCL driver. I’ve had the best luck with UFR drivers for Canons, not sure of the kyoceras.
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Dunec’s suggestion worked!! Thanks!
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jaz000
- Starting out
- Posts: 17
- Joined: Thu May 02, 2013 6:05 am
(HP) PCL XL Error
I have an HP LaserJet 2200d which is on the supported list
the printer is detected ok
setup OK on PC
but when printing the paper comes out with this printed on it:
PCL XL error
Subsystem: KERNEL
Error: Unsupported Protocol
Operator: 0x0
Position: 0
This is fairly standard HP printer speak for I didn’t like what you gave me
But it worked fine with the same driver when connected from another window pc as print server
I’ve got no idea how to debug from the unix side
what could be going wrong?
TS-421 (amd) running 4.0.0
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pwilson
- Guru
- Posts: 22568
- Joined: Fri Mar 06, 2009 11:20 am
- Location: Victoria, BC, Canada (UTC-08:00)
Re: (HP) PCL XL Error
Post
by pwilson » Sun May 19, 2013 4:57 am
jaz000 wrote:I have an HP LaserJet 2200d which is on the supported list
the printer is detected ok
setup OK on PCbut when printing the paper comes out with this printed on it:
PCL XL error
Subsystem: KERNEL
Error: Unsupported Protocol
Operator: 0x0
Position: 0This is fairly standard HP printer speak for I didn’t like what you gave me
But it worked fine with the same driver when connected from another window pc as print server
I’ve got no idea how to debug from the unix side
what could be going wrong?
TS-421 (amd) running 4.0.0
Check out: USB Printer and also please review this article.
You didn’t think to provide your PC’s operating system, so please consult one of the following (as appropriate):
- Windows 7, Vista Users
- Windows XP Users
- Mac OS 10.6
- Mac OS 10.5
- Mac OS 10.4
- Linux (Ubuntu 10.10)
Did you install HP’s «PCL» drivers on your unidentifed PC Operating System?
I realize that you are using QTS v4.0, but QNAP has not released the QTSv4.0 User Manual yet, so you’ll have to rely on this information from the v3.8.x version of the manual. (I sincerely doubt that QNAP has done anything to upgrade their broken implementation of CUPS (Common UNIX Printing System) since Firmware v1.0, so these sections of the v3.8.x manual should still apply to your QTSv4.0 Firmware).
You also might find QNAP Tutorial: How to set up a network printer via QNAP NAS? worth reading.
Congratulations on your new TS-421 NAS. I hope it meets all your NAS requirements. BTW, Your NAS does NOT use an AMD processor at all. I believe it uses the same Marvell® 6282 2.0GHz ARMv5 32-bit single-core processor as the TS-419P II, but has twice as much RAM.
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jaz000
- Starting out
- Posts: 17
- Joined: Thu May 02, 2013 6:05 am
Re: (HP) PCL XL Error
Post
by jaz000 » Mon May 27, 2013 4:25 am
yeah AMD / ARM — not sure why I get those mixed up
problem happens with windows 7 and windows 8
Yes it’s that horrible HP universal plc driver (plc6) rather than a printer specific one (latest from hp is only the universal one for this printer)
I tried re-installing the drivers _several times_ despite these three pcs having been printing happily with their existing drivers for years+
In the end I got them working by installing the postscript version of the driver which HP do still supply as current, and bingo they all work!
I have no idea what it’s doing to PCL, but somehow it seems to be breaking it ?