Digital BW, The Print

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "sonrisenc" <sonrisenc@y...> 
wrote:
>
> --- In DigitalBlackandWhiteThePrint@yahoogroups.com, "sinar001" 
> <jnolly@a...> wrote:
> >
> > You should all be aware that Piezzo print heads (Epson) and Thermal 
> print heads (HP) 
> > require different viscosity/surface tension requirements from the 
> inks they use for proper 
> > printing results. 
> > 
> > John Nollendorfs
> 
> 
> Thanks, John. I think this is what Bob Headrick was getting at as 
> well. I expect the HP heads to tolerate some pigments because HP 
> offers pigmented black inks with most of its printers. The issue for 
> me will be whether the color carts can handle these pigments, which 
> is the focus of my upcoming experiment.
> 
> I'll discuss some of these issues with MIS before placing my order. 
> I'll be sure to post whatever information I get from MIS.
> 
> I'm certainly getting a lot of useful info from this group! This is 
> what I have found missing when it comes to internet resources for HP 
> printers in general, while there is an overabundance of info for 
> Epson.
> 
> Thanks again.
> 
> Sonrise

Piezo printers tend to be much more tolerant of viscosity/surface tension issues than are 
the thermal printers. Maybe this is why there is much more information available? Also, 
until Epson put "chips" on their carts, it was very easy to refill and use third party carts, 
back in the "good old days". With inexpensive chip resetters, and good CIS systems, Epson 
system still seem to rule the "roost".

HP & Canon systems originally replaced the print head as you replaced the ink. The print 
head on these disposable carts tended to wear out quite quickly, allowing perhaps one, 
maybe two refills before becoming unusable. Third party empty HP carts were not available 
because of the very specialized equipment necessary to produce the integral print heads.

John Nollendorfs