When I first started printing pattens, they were in black. I found that I could not see the lines very well, so my next pattern was done in a light blue. That worked great, but I found red to be much better.
Dave, if you are having problems making your printer print in red, then maybe you should put the pattern in a program such as Coral or what I use, Photoshop CS. Actually any program with a paint bucket will work. Most times I will fill the waste area red and leave the rest white. However, I have found that patterns such as Steve's need to be printed off and then the pattern only scanned into the computer. If not the pattern will come out gray.
I hope this helps. If not, email or pm me.