Canon's How-To Series- PRISMAsync Technologies: Moire Reduction With Canon's PRISMAsync Print Server

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(light acoustic guitar music)
- [Narrator] In this video you'll learn how to identify
moire patterns where they exist
and the technique to reduce or remove the unwanted artifacts
using PRISMAsync Moire Reduction Technology.
You'll need an imagePRESS with PRISMAsync,
PRIMSAsync Remote Manager,
and a viewing area for comparing printed color sheets.
Let's begin with a presentation of the sample file
called Suit Jacket.pdf.
This contains a moire pattern that we'll be using
to examine the tools and functionality in PRISMAsync.
If you'd like an excellent definition of moire patterns,
please visit Wikipedia.com.
Moire patterns appear in various situations.
In printing, the printed pattern of dots can interfere
with the patterns shown in a photograph of certain images,
such as herringbone fabrics.
A picture of a herringbone-pattern suit jacket
can also interact poorly with a monitor's display pixels.
Moire, then, can be thought of as an unattractive
interference between two regularly-occurring patterns.
Now let's look at the graphical
user interface of PRISMAsync.
Operators can interact with print jobs in PRISMAsync
while standing at the press-control panel
or from any network location
using PRIMSAsync Remote Manager.
Select the Suit Jacket.pdf job in the waiting jobs queue
to call up the job properties menu.
The properties menu includes a feature called adjust image,
which opens the precise pixel-viewing window.
The Pixel Precise Viewer allows you to zoom in
at various magnification levels
so you can preview onscreen the expected outcome
of the printed file on paper.
As you zoom in to the Suit Jacket file
you can see indications that a moire pattern
may be evident in the captured image.
Although similar, the pattern of screen pixels used
by the display is different enough from the screen-angled
half-tone dots of the printer.
That final judgment of unwanted moire artifacts is best made
on paper using the proof-print feature of PRISMAsync.
Having convinced yourself that moire is an issue
in the printed piece, let's return
to the print-job properties menu to take corrective action
using PRISMAsync's moire-reduction tooling.
The precise name for the Moire Reduction Technology
in PRISMAsync is image smoothing,
and its settings can be found in the print-quality menu
of the jobs properties.
The three image-smoothing selections that perform
moire reduction are called for all images
and come in three strengths: level one, level two,
and level three, with level three being the strongest.
In a more recent version of PRISMAsync system software,
the moire-reduction functionality has been separated
from the image-smoothing setting,
and is simply called moire reduction for images,
with the three strength levels
entitled normal, strong, and stronger.
Duplicating the Suit Jacket PDF file three times allows us,
through the use of the Pixel Precise Viewing Window,
to generate onscreen comparisons of the original image
at the three different PRIMSAsync moire reduction levels.
You can easily create the same comparison in print
with the systematic employment
of the three different moire-reduction settings
in combination with the proof feature previously shown.
Using the PRISMAsync Moire Reduction Technology,
moire artifacts can all but vanish
while still preserving the original image content.
For more information about Canon's full line
of production solutions, please go to www.usa.canon.com
or contact your local Canon authorized dealer.
(soft piano riff)
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Canon's How-To Series- PRISMAsync Technologies: Moire Reduction With Canon's PRISMAsync Print Server

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