QTR-Quadtone RIP

I installed v2.2.4 on Windows XP Pro

When selected
 Printer Name: "EPSON Stylus Photo R1800" 
 Printing Model: "QuadR1800"

I get the following error code:

"ERROR: Fatal error: Unable to find driver named 'escp2-R1800'"

Instead if I select Printing Model: "QuadR800" the R1800 prints a 
light version of the image with no error. I have never installed a 
R800 driver on the system.

Has anyone seen this error or printed successfully on a R1800?

Thanks for your input.

Wayne Sanderson