Digital BW, The Print

----- Original Message -----
From: "jimenez12fr" <miguel.jimenez@...>
To: <DigitalBlackandWhiteThePrint@yahoogroups.com>
Sent: Friday, July 19, 2002 4:19 AM
Subject: [Digital BW] MIS-VM hextone and 1290 printers-Problems with
tonality


Miguel,

What is your paper and Photoshop version?

> I am using the above combination with Paul Roark's curves, but I am
> getting a non-linear greyscale. When I print the scale, between 40 to
> 80% grey there is no evolution, and there is a jump just before
> (around 30%) and after (around 90%). I think this is called macro
> banding. The prints of actual photos show the corresponding shart
> transition from a flat midgrey to white and dark values, making the
> print look very "digital". I think I have all the parameters well
> set, though my software is mostly in French so sometimes it is not
> easy to get the options correctly set in the print menu. The only
> option I can't find in the Color settings, where there is
> no "embedded 4 colours" or something like that and instead I
> have "embedded 5 colours".

Is this the color settings in Photoshop or in the Epson driver?

In PS under Source Space you should check "Document" which should be sRGB
and under Print Space choose "Same as Source". In the Epson driver it should
be as described on the MIS website:

http://www.inksupply.com/index.cfm?source=html/workflow_roark.html

> I have tried different colour settings,
> different paper options, speeds, etc. It is curious that I get
> relatively linear transitions without applying the curves and
> printing directly after having transformed the image from greyscale
> to RGB, but still it is not perfect. I have played as well with
> transfer functions in the print menu, but I am not sure of what I am
> doing and it is not recommended. The inks are charged in the right
> order, I am pretty sure (unless there is a mistake from MIS in naming
> the bottles) Any suggestions of what to try?

Try printing out the 6 color purge file to make sure the inks are correct
and in the right order. You would not be the first person to get mislabeled
inks.

>Should I twickle the
> sliders, transfer functions?

No there is something wrong since the normal workflow works very well. You
need to find the problem. Messing with the sliders and transfer functions
will just cause more problems.

Martin