Canon LBP7780CX User Manual page 287

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You can set a simulation target when printing CMYK data. The machine converts CMYK data
to a device-dependent CMYK color model in accordance with the simulation target selected by
the CMYK simulation profile.
[CMYK Simulation
Profile]
You can define suitable profiles for data that you are trying to print.
[Output Profile]
When device-dependent RGB data is converted to device-dependent CMYK using [RGB
Source Profile] in this machine, set what type of processing to use for black and gray data that
becomes R=G=B.
[Use RGB Pure
Black Process]
When device-dependent CMYK is processed using [CMYK Simulation Profile] in this machine,
set what type of printing to use for grey data (C=M=Y=0).
[Use CMYK Pure
Black Process]
Specify the printing method when [RGB Source Profile] is applied. You can select color
rendering style on the machine, as shown below.
[Matching Method]
HDTV
gamma 2.4
Monitor]:
[None]:
It performs color separation from RGB data to CMYK without applying an
RGB profile.
[JapanColor(Canon)]: Use JapanColor profile. Use it for printing in colors that are close to
Japanese printing standards.
[U.S. Web Coated
Use U.S. Web Coated profile. Use it for printing in colors that are
v1.00 (Canon)]:
close to U.S. printing standards.
[Euro Standard v1.00
Use the Euro Standard profile. Use it for printing in colors that are
(Canon)]:
close to European printing standards.
[None]:
It prints CMYK data using a device-dependent CMYK color model,
without applying a CMYK simulation profile.
[Normal]: It matches with colors close to the colors displayed on the monitor, and prints.
[Photo]:
It matches with colors similar to photographs, and prints.
[TR
It matches with colors close to the colors displayed on the monitor and prints,
Normal]:
while also controlling the bleeding of toner into text and fine lines.
[TR
It matches with colors similar to photographs, and prints, while also controlling
Photo]:
the bleeding of toner into text and fine lines.
If uneven gradation or staining is visible when printing black or gray data, do not set this
item. Set [Output Profile] to [Normal].
If this item is not set, a combination of settings enable gray data (C=M=Y=0 color) to be
printed using black (Bk) toner. An example is shown below.
If [Use Pure Black Text] is selected
When [RGB Source Profile] is set as [None]
When [Output Profile] is set as [TR Normal] or [TR Photo]
When the printer driver's [Use 100% GCR Profile] is enabled
If [RGB Source Profile] is set as [None], the setting for this item becomes invalid.
Even if this item is not selected, a combination of settings enable grey data (C=M=Y=0
color) to be printed using black (Bk) toner, as shown below. An example is shown below.
If [Use Pure Black Text] is selected
If [CMYK Simulation Profile] is set as [None]
When [Output Profile] is set as [TR Normal] or [TR Photo]
When the printer driver's [Use 100% GCR Profile] is enabled
If [CMYK Simulation Profile] is set as [None], the setting for this item becomes invalid.
[Perceptual]:
It provides colors suitable for printing photos and bitmap images.
[Saturation]:
It provides colors suitable for printing artwork and graphs for use in
presentations.
[Colorimetric]: It reproduces as accurately as possible the RGB color values that are

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