Digital BW, The Print

Phil,
 
> I have had an 1160 CIS with UT inks idle for about one year.  I just
> started using it again and stepwedges show a noticeable midtone green
> cast.
> 
> ... I print a nozzle check weekly, shake the
> bottles monthly, and the printer sits on a cabinet with another
> heavily used 1160 which keeps it moving regularly.  The curved wedges
> were a set I used back when my output was very neutral.
> 

If it is a year old, you have the old magenta that was a problem.  Whether
it's settling or sticking to the tubes of the CIS, I can't say.  It might be
that when the toner tube (Y) is flushed out the color will return to normal,
assuming the bottle is well agitated.  That is what happened with my 7500
when I was using the old UT1 in it.  The first print after sitting a long
time was half green and then abruptly went back to neutral.  The new UT1 has
the new toner mix that uses a new blue pigment instead of the magenta.  It
does not seem to settle or fade nearly as much as the old magenta.

Paul
www.PaulRoark.com