the 1100 is a excellent candidate for a cmyk diy
dtg, im haveing a go at one soon as i cant seem to get anymore 1160's, the main difference in setting it up is the sensor on the main drive wheel, i have the service manual for it and it seems identical to the R1800 on that part, piccy attached. only other problem i forsee is will it trip the paper sensor ok ? you wont know until you strip it down and try, but then they are fairly cheap, definately worth a try.
homemade DTG with Epson 1100??? 
