Digital BW, The Print

It was my impression that the long snaking channel is only to reduce
evaporation of the ink.
On the clear carts, there is no sponge on the plug side, so evaporation
would happen even quicker if there were a “vent” on that side, hence the
need to get a good seal there.  The sponge side has the long channel vent.

John

-----Original Message-----
From: DigitalBlackandWhiteThePrint@yahoogroups.com
[mailto:DigitalBlackandWhiteThePrint@yahoogroups.com]On Behalf Of Mike Dobbs
Sent: Friday, October 28, 2005 11:40 AM
To: DigitalBlackandWhiteThePrint@yahoogroups.com
Subject: [Digital BW] Re: refilling MISPRO cart for the Epson 2200 (still
more)

There is a vent system built into the top of the carts...it's the
very little hole that is initially sealed over when you get the new
cart...you remove the covering tape before using the cart. This vent
hole reaches the inner ink chamber via a long channel snaking it's
way across the top side of  the cart...then to a vertical tbe going
all the way to the bottom of the ink chamber. The vent air is
carefully controlled...too much and the static pressure of the ink
above the ink head will cause leakage by gravity. Too little vent air
and the ink can't get out at all.

So a leaking rubber plug at the fill hole will lead to leakage. I'm
not sure if the ink leaks from the print head itself or from around
the poppet valve seals. So far I have not seen a leak in my system
(refilled it once so far). Next time I will place some tape over the
fill holes as extra protection.

Mike.





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