Digital BW, The Print

>... is ... there ... any problem (from a
>chemistry point of view) in replacing the cyan and light cyan in UT2

These are the cool gray inks.

>with magenta and light magenta (they are bluish as oposed to cool
>gray) from UT.

These are the UT1 toners.  The basic components are the same, but they have
a much lower density and higher gamut.  That is, less carbon and relatively
more color pigment.

Chemically, they are compatible.

One reason I moved to the more dense UT2 inks is that the UT inkset required
more volume of ink on the paper for a given level of image density.  This
caused spots on some glossy papers due to overloading the paper.  So, if you
plan on printing glossy papers, you're better off with the UT2 densities.

If the bottles are the same price, you also get more prints per dollar with
denser inks.  (Light ink = expensive water; more light ink also = more
bronzing; use the darkest set of inks the printer can handle and give the
smoothness you want.)

Paul
www.PaulRoark.com