Digital BW, The Print

----- Original Message -----
From: "Austin Franklin" <darkroom@...>
To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
Sent: Sunday, August 25, 2002 4:50 PM
Subject: RE: [Digital BW] Re: Epson 3000 opinions


> I don't believe the 3000 has direct access to the ink levels...though the
> hardware seems to support it...there is a lever that goes into the
> cartridges, and I believe it does have some "idea" as to the link
> level...much less when it believes it's out.  The 1160 etc. actually count
> the number of ink drops they print...so that's done in firmware, not by
> actually measuring the ink.

The plastic tab that protrudes from the 3000 cart when the ink pouche inside
gets empty has to my knowledge no relation to ink status in a driver menu.
It only is used as a definite signal 'no ink left' and will not allow any
printing from that cart then. On all the Epson inkjets ink use is counted by
fired droplets in the printers
software. That information is kept in the firmware and/or on the cart chip
when available.

In general very few inkjets measure the ink level in  carts or bottles, some
do by measuring the electrical conductivity through the ink.

Ernst