Problem printing with Precise

[Roger]

We have Precise installed on a Toshiba laptop and have printing problem 
with Samsung CLP-320N colour laser printer.
We installed UnifiedLinuxDriver_1.07.tar.gz. Cups finds the driver and 
prints but it prints every line with a white space between each. For 
example, it will print the top of the line then on the next line down, a 
white space, then on the third line prints the bottom of the first line. 
It also prints 2 elongated pages on a page squashed together vertically. 
We have gone through the printer settings and are stuck.

We have checked and re-installed the cups printer, checked the 
/var/log/cups which reports:
W [10/Jul/2012:17:35:42 +1000] failed to CreateProfile: 
org.freedesktop.ColorManager.AlreadyExists:profile id 
'Samsung-CLP-320-Series-Gray..' already exists
W [10/Jul/2012:17:35:42 +1000] failed to CreateDevice: 
org.freedesktop.ColorManager.AlreadyExists:device id 
'cups-Samsung-CLP-320-Series' already exists

about 20 times.
Google is of no help!

Has anyone successfully installed this printer and solved the problem?
Thank you in advance
Roger