Digital BW, The Print

--- In DigitalBlackandWhiteThePrint@y..., "Martin Wesley" 
<mwesley250@e...> wrote:
> Jim,
> 
> I have found this to be pretty common with 1280 prints. On mine it 
seems to
> come and go, and is very image dependent. Only shows up in very 
smooth
> tones. I find it much less noticeable than the light microscopic 
banding I
> got with my 1200.

Thank you for your reply, Martin.

Yes, it has only started doing it today. I have a print with LOTS of k 
in it, like 92-98%k. I printed it a few weeks ago, no problem, 
beautiful. I compare it to a print done today, same settings, 
everything else the same (btw I'm using curves I got from Paul for 
printing at 2880 dpi- so I'm at that resolution printing this both 
times)- cordury. It vanishes lighter than about 90%k.
> 
> I have let bottles get very low. In fact the yellow ran empty not 
too long
> ago and I had no banding problems.

The pressure head of a non CIS cart vs a CIS/CFS bottle would work 
different I bet, but my head hurts too much right now to think about 
it<g>.

> 
> I have about 90 exchange prints now and if you get out a magnifying 
loupe
> you will find linear artifacts on a great many of them. This spans 
all of
> the printer models from the 1160 to the 7000. It does seem to be 
driver,
> paper and image dependent to varying degrees.

I think you have a good point. In the past I've overlooked things I 
can't see without a loupe.

> 
> If you can only see it under magnification or at unusually close 
viewing
> distances I don't worry about it.

It's visable a good foot away under a good quality Ott-lite, no loupe. 
Very apparent when comparing to print I did some weeks ago.

But we may still be talking borderline maybe for most folks.

 I have stopped looking for this 
type of
> thing and I am much happier.

I'll show it to a person or two and see if they catch it.

 If it is visible at normal distances 
then all
> you can do is go through the normal alignment and cleaning 
procedures.

Nozzles checks great before and after. I even take loupes/lighttables 
to my nozzle checks when in doubt- these look fine.

But I think it would be wise to do an alignment, although the lines 
are parallell to shorter edge.

 You
> have more experience than anyone in cleaning heads and printer.

Yeah, unfortunately.<g>

Thanks for the advice, much appreciated.
Jim H.

> 
> Martin Wesley
> 
> 
> ----- Original Message -----
> From: "jimhayes361" <jimhayes@j...>
> To: <DigitalBlackandWhiteThePrint@y...>
> Sent: Wednesday, March 13, 2002 3:03 PM
> Subject: [Digital BW] k microbanding 1280 w/ VM
> 
> 
> > I just picked up a very fine microbanding, really a cordury, 
parallel
> > to shorter edge, but only in shadow areas on Eclipse Satine 190 
gm.
> > I'm printing using Paul's curves for 2880 dpi. I've never seen 
this
> > before. Only thing I can think of is k cart is a little low at 10%
> > left (no CIS or CFS in yet).
> > Thoughts?
> > Jm H.
> >
> >
> >
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