Oce ColorWave 600 User Manual

							Set the 'Alignment' mode
Introduction
You can optimize the print productivity by reducing the distance the print carriage needs
to travel to print the output. To do so you can align the image to the top-right hand
corner of
 the sheet.
You can

 choose 
the following alignment settings. #
'Alignment' mode
'Top right'
'Top'
'Top left'
'Right'
'Center'
'Left'
'Bottom right'
'Bottom'
'Bottom left'
Before 

you begin This 
setting is editable for the Key operator or Power user.
How 
to set the alignment mode 1. Click 
'Preferences' - 'Print job defaults'.
2. Click 
'Edit' in the 'Layout' bar or click the value of the 'Alignment' setting.
3. Select 'Top
 right' if the print productivity is the most important factor.
4. Click 
'Ok' to confirm your entries or 'Cancel' to reject your entries.
Chapter 8
 - Print quality and Print productivity 331Set the 'Alignment' mode
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							Color Management
What is Color management?
Definition
The color management settings help you to reproduce the colors of your input as precisely
as possible on the printed output.
With 
the color management settings you define how to convert the color-information of
the file you 
want to print (input color space; RGB or CMYK color space) to the output
color 
space of the Océ ColorWave 600 (CMYK color space). This conversion can require
approximations in

 order to preserve the image's most important color qualities.
To be

 able to reproduce colors it is important to define the following.
• Input profile

 / Standardization
• Color feel

 / Rendering intents
• Output profile
Chapter 8
 - Print quality and Print productivity332What is Color management?
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							What is an input profile / standardization?
Definition
An input profile / standardisation defines what colour space you must use to interpret
the colour information of the file you 
want to print in a correct manner.
The 
two main input profiles (colour spaces) are the following.
• RGB
The 
RGB colour space is based on the RGB colour model. RGB (Red, Green, Blue)
is a
 suitable colour model 
for computer graphics because the human visual system
operates in
 a similar manner.
The

 RGB colour space is an  additive colour space, where you can mix colours based
on light. You can create white light if you add equal parts of each of the three primary
colours: Red, green and blue All three colours are required to produce white and the
absence of

 all three produces black. In additive mixing, the RGB colours are the pri-
mary colours

 and cyan, magenta, and yellow (CMY) are the secondary colours. •
CMYK (Colours you print)
The 
CMYK colour space is based on the CMYK colour model. The CMYK (Cyan,
Magenta, 
Yellow and Black colour space is a  subtractive  colour space, where you can
mix colours based on subtracting light energy from the spectrum. The CMY toners
are 
used to create RGB colours. All three inks are required to produce black and the
absence of
 all three produces white. In subtractive colour mixing the CMY colours
are 
the primary colours and RGB are the secondary colours. Chapter 8
 - Print quality and Print productivity 333What is an input profile / standardization?
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							You can define the input profile if you use the 'Color feel' setting 'Océ enhanced colors'.
The table below gives an overview of the possible input profiles / standardisation settings.
#
Description
Input profile / standardis-
ation
Use this setting to indicate the colour space of a standard
computer monitor. sRGB is the most frequently used
RGB colour space, especially in consumer grade digital
cameras. 
sRGB is acceptable for most consumer applica-
tions. The sRGB design allows easy previewing on a
standard computer

 display.
RGB
 
- 'sRGB'
This 
setting indicates an RGB colour space developed
by Adobe in 1998. Adobe RGB has a larger gamut than
sRGB. Adobe

 RGB is included in more medium-range
digital cameras,

 and many professional graphic artists
prefer Adobe

 RGB for its larger gamut.
RGB
 
- 'AdobeRGB'
This 
setting uses an offset press standard often used in
Europe
 for printing separations and proofs on coated
media.
CMYK
 - 'Euroscale coat-
ed'
This 
setting uses an offset press standard often used in
Europe
 for printing separations and proofs on uncoated
media.
CMYK
 - 'Euroscale un-
coated'
This 
setting uses an offset press standard often used in
the
 US for printing separations and proofs on coated
media.
CMYK  - 'US Web coated
(SWOP)' Chapter 8
 - Print quality and Print productivity334What is an input profile / standardization?
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							Description
Input profile / standardis-
ation
This setting uses an offset press standard often used in
the
 US for printing separations and proofs on uncoated
media.
CMYK  - 'US Web uncoat-
ed' Chapter 8
 - Print quality and Print productivity 335What is an input profile / standardization?
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							What is Color feel?
Definition
With the 'Color feel' setting you can fine-tune the look and feel  of the printed colors.
The 
'Color feel' setting defines the color space conversion method. #
Description
'Color feel'
Use this setting to get a print with bright, saturated
colors.
Advised for vector drawings (like HP-GL).
All 

primary and secondary colors are clean, because
they 
are printed with pure inks. This is clearly
visible if
 
you look at the color yellow that is
printed
 with yellow ink only.
An 

increase in coverage results in (almost) the same
increase in ink.
The

 
blue color is not purplish but nice blue.
This
 mode is preferred for CAD drawings created
with 
applications like AutoCAD or ArcView.
Photos printed
 in this mode will look 
dull and
grayish.
'Océ 
CAD colours'
Use this setting to get a print with photo-realistic
colors.
Advised for photos or graphic art presentations.
If

 you select 
'Océ enhanced colors' you can also
adjust the advanced Color Management settings.
• 'Enhanced colors:

 RGB input data'
• 'Enhanced 

colors: CMYK input data' (only for
TIFF and JPEG files or for PostScript and PDF
files)
• 'Enhanced colors: rendering intent'
'Océ 
enhanced colors'
Use 
this setting to get a print with colors similar
to 
the Océ TCS400 printer.
'Simulated Océ
 TCS400 CAD
colors'
Use 
this setting to get a print with colors similar
to 
a non-Océ printer that prints vivid colors.
'Simulated non-Océ printer:
vivid

 
colors'  *
Use 
this setting to get a print with colors similar
to 
a non-Océ printer that prints match screen
colors.
'Simulated non-Océ
 printer:
match

 screen colors'  *
Chapter 8
 - Print quality and Print productivity336What is Color feel?
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							Description
'Color feel'
Use this setting to get a print with colors similar
to 
a non-Océ printer that prints without color
correction.
'Simulated non-Océ printer: no
color correction'
Use this setting if your color management is com-
pletely done by the application that generated the
print file.
If the

 color management is not handled 
correctly
by the application, possible problems are: • - 

blue will be purplish (like in most other inkjet
printers)
• - raster-file information (like photos) will look
dull 
and dark.
'None, 
managed by application'
*
*  The output quality of a simulated non-Océ printer setting depends on the selected input
profile for simulated printers. Make sure you 
use the correct input profile for simulated
printers.
Océ 
ColorWave 600 path: Support - Input profiles .
Chapter 8
 - Print quality and Print productivity 337What is Color feel?
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							What are Rendering intents?
Definition of rendering intents
Normally the color space of a print file is larger than the Océ ColorWave 600 color space.
In 
other words, the input color space is larger than the output color space. Consequently
some 
of the defined input colors will be outside the Océ ColorWave 600 color space.
These 
"out-of-gamut colors" are called a gamut mismatch. When a gamut mismatch occurs, the rendering intent setting decides what qualities of
the image

 it should prioritize. The rendering intent setting preserves one property of
color at

 the expense of other color properties. Chapter 8
 - Print quality and Print productivity338Definition of rendering intents
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							'Perceptual (photo)'
#
This setting optimizes the output to produce best results for photos, artwork, GIS
or
 images.
Perceptual 
 rendering tries to preserve some relationship between out of gamut colors,
even 
if this results in inaccuracies for in-gamut colors. Chapter 8
 - Print quality and Print productivity 339'Perceptual (photo)'
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							'Saturation (business graphics)'
#
This setting optimizes the output of bright, saturated colors.
Saturation rendering
 intent preserves saturated colors, and is advised if you 
try to
keep color purity in 
computer graphics. Pure saturated colors in the original RGB
device
 will still 
be saturated colors in the output color space, even if this results in
relatively more
 extreme colors.
Saturation rendering

 intent is not advised for photos, because this setting does not
try 
to keep color realism. The color saturation can come at the expense of changes
in 
hue and lightness, which is normally an unacceptable trade-off for photo repro-
duction.
You
 can also use saturation rendering intent to prevent visible dithering if you must
print computer graphics on an inkjet printer. It is not possible to prevent all dithering,
because inkjet printers never have an ink to match every color. Saturation rendering
intent can minimize dithering if the color is very close to pure. Chapter 8
 - Print quality and Print productivity340'Saturation (business graphics)'
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