Digital BW, The Print

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "jim hayes"
<jimhayes@f...> wrote:
> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Martin Wesley"
> <mwesley250@e...> wrote:
> > ----- Original Message ----- 
> > From: "Chris Mende" <chrismendefoto@n...>
> > To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
> > Sent: Thursday, May 22, 2003 10:39 AM
> > Subject: Re: [Digital BW] Addendum to Banding with new CIS
> > 
> > 
> > > No, Martin - this is very visible without a loupe - it's
particularly
> > > visible in midtones and highlights, but runs  throughout the
image.  I
> > > printed the purge pattern with both Epson and Piezo drivers, at
> > > highest resolution, then printed a portrait with Peizo at best
> > > quality.  Nozzle checks and alignments are now looking good.
> > 
> > Chris,
> > 
> > At this point I'm not sure what to tell you. It's tough not having an
> > example to look at. Perhaps your original thoughs on the rollers is
> correct
> > and they need to be cleaned. How old is the printer by they way?  You
> > probably said earlier in the thread but I don't recall.
> > 
> > Martin
> > 
> > (snip earlier)
> 
> Well of course there is the old Jon Cone Epson 3000 trick to check for
> transport problems as the culprit in dark banding (or light banding
> for that matter):
> 
> Take a file of a known size, like 9.75 inches long (or metric if you
> prefer). Make sure you print it as you would your other prints at
> 100%. Take a very accurate ruler, I use an engineers scale but
> anything really will do, and measure the actual printed output length.
> 
> If the printout is shorter by a minimum of 1.6mm (1/16 inch) your
> print is slipping causing horizontal dark banding. If longer by at
> least the same amount the transport is advancing paper too quickly and
> you then see white lines.
> 
> If printout is within +/- 1/16 inch of file size, the problem is
> likely not the transport.
> 
> The 1/16 inch assumes about a ten inch length. If you decide to do a
> 18 inch length you might want to allow larger tolerances.
> Jim Hayes
Well, guys, I am beginning to think after all this deliberation and
the help of Dana at Inkjetmall's techsupport that I have misfiring
nozzles that over spray or spray the wrong directions.  Again - where
should I take this printer to get it's printhead worked on?  Will
anyone replace the printhead or fix it?  The printer is about three
years old and has printed hundreds of prints but went fairly lengthy
periods out of service because of my dissatisfaction with the orig.
piezo inks.  Now that I've invested in a new CIS and inks I certainly
want another even if this one can't be made to work.
Ideas?
Chris Mende