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Digital BW, The Print

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Re: Holes on top of CFS carts open or closed ?

2003-01-25 by frankg_photo <fh.gross@sympatico.ca>

> > are the holes (vent ?) on the top of the MIS CFS carts meant to 
be 
> > open/exposed or taped shut ?


> Shut. The off-center holes in the bottle lids are the vents for the 
> CFS.
> 
> The vent holes on ANY system need to be placed: 
> printhead/cart--->ink--->vent in general. For a standard non CFS 
cart, 
>  having the vent in top of cart does not violate this rule as the 
ink 
> is ALL below the vent physically.
> 
> In a CFS the ink is in bottles: printhead--->cart--->tubing--->ink 
in 
> bottom of bottle---->air vent above ink in bottle.
> 
> If you indroduce a vent hole between the cart and tubing which 
opening 
> up these holes in a CFS effectively does you will get air in 
> tubing/carts/head as the siphoning action is broken, i.e. an air 
leak.
> Jim H.

Thanks Jim.

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