Digital BW, The Print

>...heads that I cooked. When the heads get hot,
> I lose a couple of nozzles, that comes from 
> running them at 100% too often with a bad supply of ink. ...

Would this overheating problem argue against my strategy of purging the
lines by printing purge patterns as opposed to doing lots of cleaning
cycles?

One frustrating problem I have with infrequent use of the 7500 is that the
toned, blended B&W inks separate in the lines and/or dampers.  So, to get
the tones back to where they should be I have to purge the toner lines.
I've been printing just the toner inks on cheap butcher paper to do this.
The strategy avoids wasting the un-affected inks, but I wonder if I'm
wearing out the heads and running up my costs more than if I'd just use lots
of cleaning cycles or doing an "initial fill."  Those actions, of course,
probably wear out the pump.

I've also wondered if it would work to put a "Y adapter" (like the one shown
at http://www.inksupply.com/vacfill.cfm) just in front of the damper, and
then just pull the problem ink out of the line with a syringe if the printer
has been sitting for a while.

I'll probably try some sort of daily printing with the "autoprint" program
MIS recommends for CFS units first.  (See
http://www.inksupply.com/cobra.cfm) 

Paul
www.PaulRoark.com