Konica Minolta micropress release 6 Manual Do Utilizador

Zero degrees frequency 
adjustment

Once a screen set for Cyan, Magenta, and Black is calculated, Yellow is 
determined using the value specified here. Yellow angle identity is determined 
from the job or taken as the third entry in Optimize for angle set. Increasing or 
decreasing the frequency of the Yellow plate can reduce the residual moiré 
inevitable when using a four-color halftoning system. Values typically used are 
5% to 11% greater than the frequency of the other colors. Default value of –7% 
means that the frequency of Yellow is 93% (100% – 7%) of the deviated 
frequency used for Cyan, Magenta, and Black.

Maximum frequency deviation

Specifies the greatest allowable deviation from the requested frequency. 
Individual frequencies are selected so they are within the specified Frequency 
accuracy. Increasing the maximum frequency deviation gives more freedom to 
find an optimal screen set and can reduce patterning or moiré. Final output can 
be produced at a screen frequency different from that originally requested. A 
value of between 5% and 10% is normally acceptable.

Enable HPS 2.0

Select to use features added to HPS that improve the output quality when 
using Generate extra gray levels. Flat tints and vignettes are smoother 
because reduces mottling effects that generating the extra gray levels 
sometimes causes.

Abort job if accuracy not achieved

Cancels current job if it is not possible to determine a screening set within the 
angle accuracy or frequency accuracy requested.

Limit screen levels to

Allows pattern-reduction adjustments to be separate from extra gray 
generation. Set to a high value if patterning on individual films occurs. If a 
shortage of memory exits, reduce the value.

Generate clear centered rosettes

When color separations are combined, dots form one of two rosette patterns:

• clear-centered: less likely to show significant color shift if separations print 

slightly out of register; typically produces lighter, less saturated output with a 
more noticeable rosette structure. 

• dot-centered: Output at high screen frequencies should use clear centered 

rosettes. Output at low screen frequencies should use dot-centered rosettes.

If inconsistent rosettes appear across the full width of a page, try varying the 

requested frequency slightly, or increase Maximum frequency deviation, 
allowing the RIP to find a screen set with better angle and frequency accuracy.

Rotate screens according to page 
rotation

Maintains screen angles relative to the page axes. Rotate screens according 
to page rotation in the Edit Style dialog box to maintain screen angles relative 
to the page axes. This may help you diagnose the cause of problems with 
patterning in the output.

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