Digital BW, The Print

>... Are some power cleaning cycles enough to get rid of the old ink?

I have not been able to get clear answers from repair people as to what
method of getting the new ink into the lines is the least wearing on the
printer.  The fastest is to do a "prepare for transport" and/or "initial
fill" procedure.  I found with the initial fill procedure, where the color
was changed, more cleaning was needed the next morning as old ink polluted
the new ink somewhat.  Lately I've also been using purge patterns,
particularly if only a few inks are being replaced.  I modify the pattern to
print predominantly the color channels of interest. I use cheap butcher
paper to print on (with a 7500).

Paul
www.PaulRoark.com