Digital BW, The Print

A competitor's take on this is that WeInk had a disaster with a Canon CIS.
Perhaps this article is a way for deflecting criticism.  The real issue,
however, is that the viscosity requirements of Epsons and Canons is very
different.  The reason we use Epsons is that they can tolerate the higher
viscosity of relatively high-load pigmented inks.  Reducing the load and
viscosity to bring the ink within the Epson tolerances is why MIS has a
separate "GP" ink for the 1280 v. the 2200.  It's the viscosity.

At any rate, a whole lot of people are sure happy with their Epson dye
printers pumping out pigments.  I'm sure it's a stretch for some of them,
and that may, indeed, be one of the reasons some of the printers just don't
seem to be able to handle the inks.  But appropriate pigments seem to work
fine with the Epson printers I've had any experience with.

It sure would be nice if we had top Epson and other inkjet chemists and
designers on this list.  It's really tough to know what information is
correct and what is guessing or competitive sales talk from the re-sellers.
No doubt half of what we hear today will turn out to be wrong next year.

Paul
http://www.PaulRoark.com

_____________________________________________

-----Original Message-----
From: Alan Zinn [mailto:AZinn@...]
Sent: Sunday, November 02, 2003 5:01 PM
To: DigitalBlackandWhiteThePrint@yahoogroups.com
Subject: Re: [Digital BW] Ink Information


At 06:43 PM 11/2/03 +0000, you wrote:
>Some interesting 'unbiased' info ...
>http://www.weink.com/ecom/support/technotes/tsn16.htm
>
>additionally from the same site :
>
>Use the appropriate type of ink. Epson printers use a micro-Piezo
>droplet formation printhead and need ink of specific surface tension
>and viscosity to allow proper droplet formation. using the wrong type
>of ink can produce poor quality prints due to poor replenishment
>rates, commonly seen as banding or drop-outs in your prints or poor
>color match.
>
>
>Best,
>Alex

Alex,
Wow!  There must be some contrary, real-world  opinions about
this.  Pigment inks don't work - don't use them - they just ruin printers???

AZ

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