I converted an Epson 3880 for digital negatives (meth.3) with Piezography Warm Neutral Inks . (I made myself the 2.5 and 4.5 mix)
Flushing and switching inks ran without problem following the manual. After be sure there was no more color staining, I began my calibration process and was quickly able to make some very nice and smooth negatives for silver print. The results are really good.
After 2 days whiteout printing, I printed a negative and discover it had no more enough density to reach the paper white on silver print. I then printed the Inkseparation from QTR and compared with another one printed 2 days before. Every channel had the same density except for the #2 channel (Cyan). I heard it could happens and printed a few sheets with cyan only, the density increased and came back to the original one. I also ran a power clean just to be sure.
I started printing again (every day), everything ran good for a few days until the #2 channel density changed again. I purged the channel again. I also cleaned the wiper blade, capping station and bottom of the print-head every time I purged the #2 channel. After a few days, same problem, same solution, I hopped it was the last time but it happened again some days after and today again.
I now print for more than 3 weeks with the system on a daily basis and it seems that the #2 channel is still not stable. Do you have an idea on this problem?
Please let me know if you need further informations