'I originally used white ink and would
now like to change to
using Gold ink, but I am unsure of what the best solution is to clean the
master screen. I tried to check the operation manual but it gives no
detail of cleaning the screens to change ink colour.'
If you are going to change straight over and continue
printing then just scrape off all the white with some card and toilet paper
and reapply the gold straight over the design.
The first 10-15 prints that come through will
still have White parts in them but this will quickly disappear [unless you don't
remove all the white] and you can continue printing.
If you are going to stop, clean and then reprint
at a later stage then you should clean the whole Print master down between colours.