I have a 7900 I bought to see if I could get it back running, but it has 2 bad channels. Flushed with PiezoFlush many, many times, to no avail. Talked to Walker, and he said it would be a good choice for Piezography Pro, but I don’t have the time for the undertaking. Willing to part with it for free if you come and get it! I think the print count was really low, otherwise–previous owner was reproducing her artwork on Etsy, left it in storage for a year after they moved, and that did those channels in. Looks brand new. Contact me!