Digital BW, The Print

Robert,

> Another problem that I had was banding caused by head starvation in my
7000.
> Nozzle checks were fine, but when the problem ink was called up I'd get
> banding.  I never knew when it would happen...because I didn't have
control.
> Ink manufacturers wouldn't help me because they couldn't reproduce it.
Epson
> wouldn't help me cause it didn't happen with the epson OEM inks.  I was
> stuck.  With IJC the solutions were easy...and several choices as to what
to
> do.  I could either not use that channel and thus avoid the problem...or I
> could use the channel in a redundant ink (magenta or cyan) and feather it
> with ink from the other channel firing that ink.  That's what I did...and
> the banding is gone...a problem that I tried for 6 months to get rid
> of...gone like that.

It must be nice dedicated software for B&W. And a free choice of channels is
good too.

If you still want to find what causes the ink starvation then I would first
check the damper of that channel and replace it with a new one.
If the inkflow is still too low then the cartneedle may be clogged with
particles of the cartseal. Happens when carts are often refilled and the
seals are wearing out. Last thing I would check is air getting in at the
damper connection or at the cart seal.

Ernst