Full color gum printing

I am trying to figure out what adjustments can be done to an almost finish
full color gum print but unfortunately with either slightily too much
yellow, green or blue on the image.
If you have experienced the process you may have run that the pigment may
had some problems or the expoure did not come out as planned and you ended
up with this almost complete print but with a slightly different color.
My thoughts are than instead of throwing it away and start all over again is
worth to try to fix it.
Any idea or experience you would like to share on this subject?
Thanks,
Giovanni
gdimaseu@yahoo.com
Received on Mon Jul 5 08:58:06 2004