Digital BW, The Print

I've been using this setup (on my 2nd 1280 now) since shortly after
the UT2 inks became available. I use Paul's curves and generally the
printers have been trouble-free. The ink bottles are 20-30% full and
they have an expiration date of 2/06 except the eboni which I replaced
a few months ago. All the carts appear to be full. Everything seems to
be working fine except for one problem. I can't duplicate the nice
sepia tones that I was getting several months ago. I usually print
with the neutral or carbon  
prints and hadn't noticed any problems.

I've always done test prints on EEM. I don't often use the dark sepia
(EEM) curve and haven't used it in a few months. but I've used it
successfully in the past on EEM and PR. Now I've got a client with a
dark sepia photo that I need to reprint and Paul's EEM dark sepia
curve would have worked very nicely a few months ago. I expected it to
work today, but it doesn't.

Today's prints look just fine except that they're much more neutral
with a yellowish cast. Much different than the older samples with this
curve. The same is true when I print with the EEM light sepia or PR
sepia curves; they're obviously more neutral. I pulled out an older
dark sepia project and reprinted it with the same results.

I don't know if I managed to get a good sepia print after installing
the new bottle of eboni or not. I just don't remember. That's the only
change that I've made that might have created this problem.

I'd appreciate any thoughts or suggestions you have. I was supposed to
deliver this print today or tomorrow.

Thanks...

Tom Keesling
Indianapolis