Canon ip4000 3eBK cart. When is it used?

I print a lot. I have to change carts everyday. It's all Matt hires paper. I've
set color to manual. My black is set to -10 and darkness -10.

With these setting prints come out very nice. The 3eBK cart appears to be not
used at all. I don't have change its very often - maybe twice a month.

The 3eBK printhead get's stuck often - i reckon it's the non use. A few cleaning
cycles fixes it though.

It's used only with non-photo paper selection.


"DC" <dci@glebnomail.com> wrote in message
news:rlpaj1ds6rij15ksr1uh80ojju0u1ja9og@4ax.com...
> I print a lot. I have to change carts everyday. It's all Matt hires paper.
I've
> set color to manual. My black is set to -10 and darkness -10.
>
> With these setting prints come out very nice. The 3eBK cart appears to be
not
> used at all. I don't have change its very often - maybe twice a month.
>
> The 3eBK printhead get's stuck often - i reckon it's the non use. A few
cleaning
> cycles fixes it though.
>