Lexmark X1270 driver, manual and software download including for vista

To Install your Printer you must required a driver. To get the driver you need to make sure the type of vista you are using normal of 64x. There are also other driver for Lexmark X1150 as below
 » Linux
 » Mac OS X
 » Microsoft Windows 2000
 » Microsoft Windows 98
 » Microsoft Windows 98SE
 » Microsoft Windows ME
 » Microsoft Windows Vista
 » Microsoft Windows Vista (64-bit)
 » Microsoft Windows XP
 » Microsoft Windows XP x64

It is also highly recommended for you to check you registry status to make sure there is no conflict. You can scan your registry from this link click here

You can download the Lexmark X1150 driver, manual,software and information from this link click here

FOnt size issue

Check the default fonts within Microsoft Windows.

Select your entire document and set it to a larger font.

Make sure all your fonts are loaded properly.

Change the resolution to quick print at 600 dpi. To do so:
Click Start, Settings, Printers.
Right click the Lexmark printer icon and choose Properties.
Choose the Document/Quality tab and set the resolution to 600 dpi quick print/draft.
Change the Spool Data Format to RAW. To do this:
Click Start, Settings, Printers.
Right click the Lexmark printer icon and choose Properties.
Select the Details tab and click Spool Settings.
In the Spool Settings screen, set the Spool Data Format to RAW.
Click OK and then Apply.

 

You can get more information to other problems here