Digital BW, The Print

Hello all,

Well, of course I can look at the on-screen ink level chart that Epson
printers provide. But still, I'm not sure. I have an R1800 and am
using MIS spongeless refillables in the two black and the GLOP
positions (Paul's 3MK approach). In the color position I've kept the
OEM color carts... after they ran out I've been using MIS cleaning
fluid with the OEM refill kit. I reset the chip of course.. but now
naturally when I do a nozzle check I can't see any pattern from those
carts, and I can't see the level because these carts are
non-transparent. I have to rely on the on-screen charts. But since
I've reset the chip, the cart may show full, or partially full, but in
fact may be empty. And I don't want to harm the printer running on an
empty cart.

Perhaps I don't understand just how the chips work... do they actually
measure the fluid in the cart?  Or do they just indicate what's in the
cart by keeping track of the "mileage". Not sure I'm explaining all
this very well, perhaps someone will catch my drift.

TIA!

Paul