Digital BW, The Print

Hi Steve,

--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "Steve Taylor"
<ts01@b...> wrote:
> I have a bit of a tale here about clogs, and the conclusions I have 
> come to. I would be interested to hear peoples' comments on whether 
> these conclusions make sense, or if they are total garbage!

Thanks for sharing your tale with us. I've been there ... many times
... so I know the feeling.

> From this I conclude that I will not leave the CIS in the printer, 
> but put it in when I need it.

While you might have done the right thing in performing the foam purge
per MIS's instruction, I think they left out an important point. You
probably did such a thorough job of drawing foam out that the critical
vacuum break inside the cartridge is now filled with ink. If this was
indeed the case it would be impossible for the printhead to draw a
solid column of ink through. Of course this is not always true because
not all printheads and CIS plumbing are created the same. The solid
block of ink either prevents ink from being drawn into an air-filled
printhead, or causes drips if the head is well primed.

You might want to disconnect the tubing from the top of the cartridges
and let ink run back to the bottles. All the way back because you need 
a nice big vacuum break. It prevents ink from siphoning back to the
bottles so you can let your printers sit idle for a long time. I have
5 CIS and they easily sit idle for months without any problems.

--nick