Digital BW, The Print

Apparently the volume of ink that can be held in the MIS refillable 
carts for the C84 and c86 is less than the Epson-brand cartridge.  I 
say this because two times today I have had puddling of ink on the 
media start in the middle of a print job.  Each time the color ink 
that was puddling was from a cartridge that was clearly empty 
(these are clear carts) but had an status monitor ink level 
between one half and one quarter full.  Since I was monitoring the 
printing while in progress, I caught the puddling just as it 
started.  Not enough ink was on the media to explain the discrepancy 
between actual and indicated ink levels.

I have also noticed on previous occasions that the filling chamber 
was almost empty when the status monitor indicated between one half 
and one third more ink remaining.  When filling, I have followed 
MIS's instructions concerning ink volume (12-13 ml for color).

Because of this, I would suggest to all users that they check the ink 
remaining in these carts when the status monitor indicates half 
empty.  Apparently, when the ink level goes below the level of 
the "gate" between the two sides of the cart, that breaks the vacuum 
between the two sides allowing excessive ink flow.

Also, this may explain some of the "leaking carts in C84/C86's" we've 
seen on this forum.