Digital BW, The Print

Hallo,

Have a look here - Paul is right - the black tubing is permeable - 
and the black ink contains more solvents!

http://groups.yahoo.com/group/DigitalBlackandWhiteThePrint/message/145
07

Regards

Bo


--- In DigitalBlackandWhiteThePrint@y..., "Paul Roark" 
<paul.roark@v...> wrote:
> >...
> >it looked like the black ink has dried out just before
> >entering the cartridge...
> 
> 
> I don't know where the inks dried in my CIS systems, but twice I 
used
> systems that had been sitting idle for a while, and they clogged my 
1160 --
> seriously.  The second one killed the head.  For me it was the 
color head.
> (I paid $180 to have the head replaced.)
> 
> It may be that the CIS/CFS system is really only a good idea for 
those who
> use the same inkset rather continuously.  Many heavy users have 
very good
> luck with them.  My pattern of changing between inksets was a 
disaster with
> the CIS, however.
> 
> So, I fill new carts now.  With the vacuum filling system, I 
usually get a
> perfect nozzle check the first effort -- just like a factory-filled 
cart.
> For infrequent printers or those who like to switch among inksets, I
> recommend this.
> 
> The black ink would probably be the most sensitive to leaks (or 
just air
> passing straight through the plastic tubing) due to its solvent 
base.  (The
> solvent base and it's faster dying is important for both a deep 
black and
> longevity.)  Since my small printer -- the 1160 -- is used for 
letters and
> all general printing, the black ink always gets lots of use.  So I 
virtually
> never have a clog with it or any color position with the carts.  If 
your
> printer is a dedicated photo printer and you don't use it much, the 
black
> would be the one to keep an eye on in terms of trouble.
> 
> If the ink solidified right by the connection to the cart, I'd be 
suspicious
> of a bad fitting there.
> 
> Paul
> http://www.PaulRoark.com