Question about HP LaserJet 2420 Printer

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HP LaserJet 2420 Printing trouble

Hi -

I have a HP LaserJet 2420 with the PCL 6 driver installed. This printer is configured for Network printing. The problem that I am having is very peculiar. The printer is correctly installed, but when I print a word file (or any file with multiple pages) two things happen:

-It prints the job, but prints the even pages first
-it then prints the odd pages upside down.

I'm thinking that this may be due to the printer not being configured correctly, or I may have a faulty or older print driver.

Any thoughts would be extremely helpful - thanks!

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Re: HP LaserJet 2420 Printing trouble

I think that Odyssey user is right it maybe that the print driver is not compatible with the program you are using goto or and download the PCL 5e driver

Hope this helps you
Thanks J

Posted on Jan 13, 2008

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I have a printer HP Laserjet 2420dn pcl 6 on network which prints empty page on every second page can you give me solution to this problem

Why don't you delete the printer and go out to and download the latest drivers.
Try the PCL5, less problems. and reinstall the printer.

Feb 03, 2011 | HP LaserJet 2420 Printer

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My hp color laserjet cp2025 has the pcl xl error subsystem: Kernel error: Illelgaloperatorsequence operator beginpage position: 14 What can I do to fix this?

A Hewlett-Packard LaserJet printing language, PCL 6 is optimized for printing from graphical user interfaces (GUIs) like Microsoft Windows.

The Enhanced PCL XL, or PCL 6, driver that is included with the HP LaserJet printers provides enhanced WYSIWYG and enhanced performance with application support over the Standard (PCL5e) driver. PCL XL is a new page description language by HP, that is part of PCL 6 and is closer to GDI, which many applications use. Less translation takes place by the driver, which means increased WYSIWYG capabilities, and better performance with applications that support escapes implemented by the Enhanced driver.

While printing using the PCL 6 driver it is possible to encounter a PCL XL error. This error will print out at the LaserJet device, and will look like something similar to the following:
PCL XL error

Subsystem: KERNEL
Error: IllegalOperatorSequence
Operator: EndSession
Position: 15

These type of errors can be PCL interpreter errors, firmware related, tied to communication, driver, driver dependency, and application specific. Additional troubleshooting will be required to further isolate to root cause.


I. Verify printer functionality

To verify printer functionality, perform the following:
1.Power the printer Off.
2.Disconnect the parallel, USB, or network cable.
3.Power the printer On.
4.Once the printer display reports Ready, verify device functionality by printing a Configuration Page from the device.
Note: should the internal printer test not print as expected, and/or a PCL XL error occur, you have then isolated the issue to the printer device, and any network connectivity or driver / application troubleshooting can be ruled out.

II. Verify communication w/ the device

To verify communication with the device, perform the following:
1.Power the printer Off
2.Reconnect any communication device cable previously removed
3.Power the printer On
4.Once the printer display reports Ready, perform the following:
a.From the client machine or print server that had previously encountered the PCL XL error open the Printers and Faxes folder.
b.Right click the PCL 6 driver in question and select Properties.
c.From the General Tab select Print Test Page
d.Verify the driver test page successfully printed
Should the test page successfully print, continue with the next troubleshooting section entitled Isolate user, application and/or file.
Should the PCL XL error manifest itself as a result of the driver test page, perform the following:

1.At the print server, or client machine, open the Printers and Faxes folder

2.Click on Add Printer

3.Go through the Window’s driver install process installing the appropriate PCL 6 driver for the device in question, with the following characteristics: printing directly to the device (IP_Address, USB, Parallel, etc), creating a new print queue, selecting to Replace Existing Driver.
4.If the issue persists see section entitled: Microsoft Unidrv driver dependencies.
Note: If using an HP LaserJet PCL 6 device specific driver (discrete), try installing the latest HP Universal Print Driver PCL 6. Available at the website under support & drivers. Select product cb534a and also select your operating system, download a universal print driver Post Script would be the best selection.

You can also adjust a few settings under printing preferences:
under the advanced tab:
Raster compression:
Set it to max

III. Isolate user, application and/or file

If in fact the printers internal test pages and driver test page have printed successfully, further fault isolation must be performed to correlate the PCL XL error with a specific user, application, and or file. This information is most often easily gathered by speaking with the customer, investigating which user is printing when the PCL XL error manifests itself. Once the user is identified, the application the client was printing from can be isolated, and quite possibly the application file itself.

If an application file consistently causes a PCL XL error when sent to the device, it could be a problem only with the file.

IV. Microsoft Unidrv driver dependencies

The issue was identified to be related to Microsoft unicore files: unidrv.dll, unires.dll, and unidrvui.dll, that were not compatible with the available PCL 6 drivers at that time. Microsoft has developed a hotfix to address the symptomatic PCL XL errors – the Microsoft Hotfix can be reviewed here:
Microsoft Windows 2003 and XP:
Microsoft Windows 2008 and Vista:
Microsoft Windows 2000: NA
HP LaserJet – PCL XL Error

If anything else let me know,


May 27, 2010 | HP Laserjet Cp2025n Printer

1 Answer

Pcl xl error subsystem: kernel error: illegal tag operator: ox1b position: 6

If you are using Windows 2003 Server and/or Windows XP Client machine and if you hace installed PCL 6 Driver than printer will print pcl xl error while printing.

To fix this problem user need to install PCL 5 Printer driver or Universal printer Drivers from the Link mentioned.

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As mentioned above, install the universal PCL 5 drivers from HP website. This will fix the error.

Feb 23, 2009 | HP LaserJet P2015 Printer

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PCL XL error


Please uninstall the current PCL driver and upgrade the same with UPD PCL5 (dont install PCL6) from


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Hope this helps you troubleshoot it.



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HP 2420 keep printer wrong characters


This could be due to corrupt file or print job irrespective to file. This can also be an issue with the network sending packets or print spooler.

However, i would suggest to upgrade the driver to UPD (universal printing driver) PCL6

Please let me know the next update.

- Nikhil

Nov 17, 2008 | HP LaserJet 2420 Printer

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Laserjet 1022n and Universal Print Driver

i solved this problem in my case with an compatilble standard driver from windows. An PCL Laserjet 5 / Laserjet 6 Driver.
And no problems occour.
On the clients and the server all iss fine.

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