how printing using only dark cyan ?

Hello,

I'm using gimp-print/gutenprint for 20 years with an epson stylus
photo 870. After 9 years non using it, I try to make it works again,
and I have problems with the head for the dark (or normal or not light)
cyan.

I would like to print a cyan page using only dark cyan. Is it easy to
do ? (I have not understood the use of light cyna value, light cyan
transitin and light cyan density scale (by the way there are not in
the same order in 5.3.1 for magenta)).

Thanks a lot for the support for so much time,

alain prignet