Digital BW, The Print

In addition to black-ink-only, or a C86 with MIS EZN inks, I use my 
2200 with QTR for b&w printing.  Has anyone tried the "compatible"
inks 
sold for that printer by 123inkjets.com?  They're about 1/2 the price 
of Epson but I find no details about them on the 123inkjet web 
site. . .Edward