I have a lexmark x1270.

Check that you have sufficient disk space available on the PC The rule of thumb is that the HD should have at least 10 - 20% space left to operate efficiently.

Delete the printer driver from the PC. It is a good idea to scan the whole system for viruses, malware and spyware as these can slow down performance significantly. Next scan the system for un necessary drivers and applications etc. You can do this by using a free 30 day evaluation of Ashampoo from www.ashampoo.de that will check out the whole system and assist in removing all the unwanted junk from the registry and hard drive(s). I have been using this software for many years with great success in my workshop in improving system performance. Also then do a full HD defragment - also available in the Ashampoo tool. Then shutdown and restart the PC. Downloadt the latest printer driver from Lexmark support at the following link.

XP / Win 2000 / Win 2003
http://support.lexmark.com/index?page=downloadFile&actp=CONTENT&productCode=LEXMARK_X1270&id=DR15827&segment=DOWNLOAD&userlocale=EN_UK&locale=en

Vista 32 bit
http://support.lexmark.com/index?page=downloadFile&actp=CONTENT&productCode=LEXMARK_X1270&id=DR15494&segment=DOWNLOAD&userlocale=EN_UK&locale=en


Reinstall the print driver. Then shutdown and restart the PC and all should be OK.

Just to clarify. You have uninstalled the printer and then reinstalled the latest drivers? Also have you tried totally reformatting the computer? just changing service packs may not be enough. Also make sure all the other drivers for your computer are up to date. Does the printer print at all or does it go to 99% and not print?
Thanks,
lee

Hi.
please do the following.

• Go to control panel>>Printers, and remove the printer from the list. Choose to remove drivers if asked.
• Unplug printer USB cable.
• Download updated drivers here: Driver for Microsoft Windows 2000, XP and Server 2003.
• Connect the printer only when prompted by driver setup program.

Let me know how it goes

Change the printer spool settings in Control Panel > Printers > Lexmark > Properties > Advanced, disabling the spooler or setting "Use Spooler / Start printing when job finishes".

Also, it could be a problem with the print processor. Same page, choose "Print Processor" for WinPrint and set it to "raw".

Better yet, check which settings are configured on the other computer :-)

If you tested the printer on another computer, is that computer using the same version of Windows (SP3 included)?
When you uninstall the printer, do you actually remove all the printer files from the computer? I would do that. Sometimes a reinstall leaves old files in place.
Are you using the same printer cable on both computers?

it is still reading SP2 and that is the job of the registery that keep old setups and new one, you may tried too many times that it is building new with old...you need to clean the registery. download a free software that I use http://www.ccleaner.com/ but first delete the application and shut down the system then start ccleaner and it will clean the system totally and remmber to keep copy of the old registry (it will ask you if you need it or not) and install a clean application and see how it works, and let me know