Minolta magicolor 2210 - Manual (Page 60)

56 D ESKTOP C OLOR L ASER FOR B USINESS : MAGICOLOR 2110 P RINT S YSTEM
Alternate halftone settings are provided on some models.
When selected from the printer’s front panel or driver,
these halftones provide additional choices of line screen
frequency, color levels, and screen angles.
C OLOR M ATCHING
In addition to ColorDepth screening, Q
COLOR
offers a mul-
titude of ways for performing color matching. The process
of color matching makes sure that color is produced in the
same shade on all devices. Scanners and monitors use
RGB (red-green-blue) values to define colors. Printers use
CMYK (cyan-magenta-yellow-black) inks to print color.
When an image is scanned into a computer, it is sent by the
scanner in one RGB format and converted into another RGB
format by the computer. When it is sent to the printer, it is
then converted into CMYK colors by the printer driver or
application. Color output on the printer may be dramatically
different from the colors on the monitor screen.
To alleviate this inconsistency, color management software
is available that describes colors for the scanner, and
printer in a common language. This is done by mapping
each device’s color definitions, or color space, to the CIE
international standard for color.
The CIE color standard, first developed in the 1930’s, stan-
dardizes the system for measuring color perception by the
human eye. This is a device-independent way to specify
color. In addition, the magicolor 2210 supports the ICC
International Color Consortium standard that incorporates
the CIE standard for color and the use of device profiles.
To define a device’s color space, the color matching sys-
tem uses a device profile to determine an independent
value for each color. A device profile contains a descrip-
tion of the range, or gamut, of colors that a device can pro-
duce. When a color from one device (i.e. a scanner) needs
to be translated for another device (i.e. a printer), the color
management system’s color matching method (CMM)