Digital BW, The Print

okay, I need some help. I have run the 21 step wedge and it looks fine when
i print photorag 188 and cone inks. The image I am trying to print looks
fine on the screen with very smooth skin tones. When I print it, there is
considerable posterization.  what gives?

David Myers

do you have a clogged nozzle? 

--- In DigitalBlackandWhiteThePrint@y..., David Myers <dmyers@m...> 
wrote:
>  okay, I need some help. I have run the 21 step wedge and it looks 
fine when
> i print photorag 188 and cone inks. The image I am trying to print 
looks
> fine on the screen with very smooth skin tones. When I print it, 
there is

> considerable posterization.  what gives?
> 
> David Myers

--- In DigitalBlackandWhiteThePrint@y..., David Myers <dmyers@m...> 
wrote:
>  okay, I need some help. I have run the 21 step wedge and it looks 
fine when
> i print photorag 188 and cone inks. The image I am trying to print 
looks
> fine on the screen with very smooth skin tones. When I print it, 
there is
> considerable posterization.  what gives?
> 
> David Myers

Do a search for "DSS" "Density Shift syndrome" "Hayes Syndrome" 
"Greenies", mainly on the piezo list, although some mention of it is 
on record on this list as well.

You want to rule out DSS as the culprit, and then go onto other 
possibilities.
Jim H.

David,

You said you can print the 21 step wedge, but not the photo, then 
the problem may be with the photo. Although it may look good on 
your montitor that does not mean it is as smooth as the 21 
steps. 

Test. Paste the 21 step into the photo and print them both at the 
same time, and if the 21 step is not posterized, then the image 
is at question. So try that.

Did you change the gamma and ink densities of the ICQ profile 
by accident? They should be 1.0 and 100. Changing them will 
result in effects that can look like posterization. 

Maybe you did too heavy a twist with curves or levels?

BTW, is it just this photo or all photos?

Brian

--- In DigitalBlackandWhiteThePrint@y..., David Myers <
dmyers@m...> wrote:
>  okay, I need some help. I have run the 21 step wedge and it 
looks fine when
> i print photorag 188 and cone inks. The image I am trying to 
print looks
> fine on the screen with very smooth skin tones. When I print it, 
there is

> considerable posterization.  what gives?
> 
> David Myers