Konica Minolta bizhub PRESS 1250 - Manual (Page 129)

Parameter Option Description
Image
compression
quality Enables you to control the quality of JPEG images in your job.
Provides the following options:
● Normal
● High
Improve text/
line in Image Significantly improves the text and line quality in your job. In some
cases, images in the PDL file contain data that belong to the text and
graphics layer, such as screen captures and high resolution
rasterized text. The IC-309m print controller is able to identify such
images and convert them into text and graphics.
Select from the following options:
● Auto
● On
● Off
Smooth
gradient Blends artificial (or synthetic) vignettes and gradients in natural
images.
Transparency
flattening
quality Improves the quality of transparencies that are flattened in PDF files.
Overprint Black
overprint Ensures that black text prints cleanly within a tint or picture area. The
text appears in a richer, deeper black, with the underlying CMY
values equal to those of the printed background.
PostScript
overprint Uses the overprint information that exists in the PostScript file. This
option also determines whether the DTP application's PostScript
overprint settings are retained in the RIP.
Resolution Resolution Enables you to set the resolution for the job when printed. Select
either 600 dpi (fine) or 1200 dpi (very fine).
Screening Screening
Method Converts images, graphics and text into information that can be
printed (halftone dots). The human eye “smooths out” this
information, which seems visually consistent with the original picture.
Thus, the more lines per inch, the more natural the image appears.
Screening is achieved by printing dots in numerous shapes or lines
in an evenly spaced pattern. The distance between the screen dots
or lines determines the quality of the image. Printers can work with
constant amounts of toner and still produce a wide range of colors
when you use screening. The darker the color, the larger the dot.
To print an image on a digital printer or press, the Creo server needs
to digitally approximate the grayscale values with different
distributions of pixels. This process is commonly referred to as
halftoning. Digital halftoning begins by sampling the original image at
the same number of dots per inch as the printer and constructing
digital halftone cells.
Quality tab in the job parameters window 121