Digital BW, The Print

I found my 1800 rollers had become fouled with all the glop experiments.
It was resulting in vertical banding and could be what you're seeing.  I
clean rollers by spraying Ace Janitor Strength Smmonia across the
central portion of an EEM sheet and running it through the printer.  I
follow that with several sheets of plain paper.  Then I repeat the
process.  I found in the first cycle the papers came out with lots of
ink on them.  The second cycle was clean.  It seemed to work.

Paul

www.PaulRoark.com <http://www.PaulRoark.com>


--- In DigitalBlackandWhiteThePrint@yahoogroups.com, "jvircoe"
<jvircoe@...> wrote:
>
> I am using a linearized version of Paul Roark's QTR profile C-3MK-
> IlfordGoldFB-GL-1PK on A4 Ilfordgold Fibre Silk and MIS inks/glop. I
> am using MP-PK in the PK position. All other inks as described in
> Paul's published PDF workflow.
>
> When printing I specify 2880 and Uni-directonal.
>
> I am achieving a D-Max of 3.15 - fantastic result. Thanks Paul.
> (this was measured with my Colorvision/Printfix Pro spectro on a
> black and white test image available at www.northlight-
> images.co.uk/digital_black_white.html).
>
> My only problem in an otherwise perfect workflow is that I am
> experiencing very subtle vertical banding (about 3mm in width
> (alternating dark and light bands) on A4 paper) in the same direction
> as the longest side of the paper. The banding is only visible in
> constant mid-grey sky tones and while subtle is enough to put me off.
>
> I have tried adding grain to the sky (using Grain Surgery) but this
> has not made a difference.
> I have checked my nozzle print pattern - no problems there.
> Any other thoughts on what I can try?
>
> Thanks
> Jim
>




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