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Digital BW, The Print

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Re: [Digital BW] More quadtone experiences -- Nozzle Check

2001-08-22 by Nicholas Hartmann

Paul -

>So, the order of your inks sounds right.  However, the magenta position
>should be close to the toner.  It may look just a little lighter, but not
>much.

Don't trust me on the relative density of the inks: I was working from
memory since I don't have the nozzle check sheet in front of me. At least
it seems the right inks are in the right places.

>I have heard of partial blocks that could affect the print tones and yet
>give a reasonable-looking nozzle check.  What can happen, apparently, is
>that a little screen in the head (the last chance to catch junk before it
>gets to the nozzles) can become partially clogged.  Although the lighter
>tones might be affected most, it could affect the image anywhere.

The nozzle checks are not just reasonable but perfect: every bar in each
panel is continuous and solid, with no thin spots or spatters. Every other
time I've had clogged nozzles, the first symptom was microbanding: when I
first filled and installed the MIS VM cartridges, for example, the black
panel had _one_ clogged nozzle, but that was enough to create a perceptible
thin white line in dark areas of the print. I'm pretty sure the nozzles are
_not_ one of my problems (yet).

I'll let you know tomorrow what happens in response to the readjustment in
color spaces. Thanks again.

-- Nick


NICHOLAS HARTMANN                                +1 (414) 271-4890
611 N. Broadway, Suite 509                  fax: +1 (414) 271-4892
Milwaukee, WI 53202, USA                       polyglot@...

Technical and scientific translator:  German and French -> English

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