Digital BW, The Print

> Andrew:
> 
> I have a postal scale around here somewhere, I'll do a search today...
> good idea.

Miraculous... looked in our "stuff" draw and found it right away. I
was going to post a photo of it, but Googled on "letter scale" and my
first hit found one just like mine - here it is:

http://www.oldwillknottscales.com/my-weigh-metal-hand-scale.aspx

I found out that a full OEM Epson cart weighs 37 gm and and an empty
Epson is 27 gm. I think Paul said if I can inject 10 mil of ink, that
that should fill it. Since 1 mil of water is about 1 gram, my two
figures are about right.

A brand-new MIS spongeless came in at 19 gm. I'll fill it with Eboni
and see what I get.

This little scale reads up to 100 grams and has increments of 1 to 5
gram, depending on the range you're in, so it's just about right for
our purposes. And - no batteries!
> 
> Paul:
> 
> Yes, counting the use is what I was getting at by "mileage". I didn't
> see how they could measure the actual level since there's no physical
> contact with the interior of the cart.
> 
> Of course, since I'm using cleaning fluid, I won't be making much of a
> mess if I try and add too much, it'll simply spill over. Then I'll
> know it's full. And it's inexpensive.
> 
> As for a faint pattern in the nozzle check, actually I did see that at
> first. But now that I've filled those carts a few times the contents
> are pretty much pure cleaning fluid.
> 
> If I do happen to print when one or more of these carts is actually
> empty, will this harm the printer in any way?
> 
> Thanks,
> 
> Paul
> 
> > I think the re-set chips will estimate how much ink is in the cart 
> > based on counting the use of that ink.  They do not measure the 
> > actual ink level.  They will assume the carts were full when the 
> > chips were reset.  If you were able to get as much cleaning fluid 
> > into the carts as there was OEM ink when full, the chips should be 
> > reasonably accurate.  I'm not sure how much ink that is, but I'd 
> > guess if you were able to get a full 10 cc syringe full of cleaning 
> > fluid into the cart, you'll be able to run it until it's fairly empty.
> > 
> > Actually, I'm surprised you can't see a light nozzle check pattern 
> > due to the residual ink left in the cart when you refilled it.  If 
> > it's a bottom fill approach, the light ink color might show up later 
> > as the ink from inside the cart may have more color than that which 
> > is near the outlet just after the refill.
> > 
> > 
> > Paul
> > www.PaulRoark.com
> >
>