HP Color LaserJet Enterprise CP4525 HP Color LaserJet Enterprise CP4020/CP4520 - Page 157

Match colors, Sample book color matching, Print color samples, complex. In general

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Match colors The process of matching product output color to your computer screen is quite complex because printers and computer monitors use different methods of producing color. Monitors display colors by light pixels using an RGB (red, green, blue) color process, but printers print colors using a CMYK (cyan, magenta, yellow, and black) process. Several factors can influence your ability to match printed colors to those on your monitor. These factors include: ● Paper ● Printer colorants (inks or toners for example) ● Printing process (inkjet, press, or laser technology for example) ● Overhead lighting ● Personal differences in perception of color ● Software programs ● Printer drivers ● Computer operating system ● Monitors and monitor settings ● Video cards and drivers ● Operating environment (humidity for example) Keep the above factors in mind when colors on your screen do not perfectly match your printed colors. For most users, the best method for matching colors on your screen to your product is to print sRGB colors. Sample book color matching The process for matching product output to preprinted sample books and standard color references is complex. In general, you can obtain a reasonably good match to a sample book if the inks used to create the sample book are cyan, magenta, yellow, and black. These are usually referred to as process color sample books. Some sample books are created from spot colors. Spot colors are specially created colorants. Many of these spot colors are outside of the range of the product. Most spot color sample books have companion process sample books that provide CMYK approximations to the spot color. Most process sample books will state which process standards were used to print the sample book. In most cases they will be SWOP, EURO, or DIC. To get optimal color matching to the process sample book, select the corresponding ink emulation from the product menu. If you cannot identify the process standard, use SWOP ink emulation. Print color samples To use the color samples, select the color sample that is the closest match to the desired color. Use the sample's color value in your software program to describe the object you wish to match. Colors may ENWW Match colors 143

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Match colors
The process of matching product output color to your computer screen is quite complex because printers
and computer monitors use different methods of producing color. Monitors
display
colors by light pixels
using an RGB (red, green, blue) color process, but printers
print
colors using a CMYK (cyan, magenta,
yellow, and black) process.
Several factors can influence your ability to match printed colors to those on your monitor. These factors
include:
Paper
Printer colorants (inks or toners for example)
Printing process (inkjet, press, or laser technology for example)
Overhead lighting
Personal differences in perception of color
Software programs
Printer drivers
Computer operating system
Monitors and monitor settings
Video cards and drivers
Operating environment (humidity for example)
Keep the above factors in mind when colors on your screen do not perfectly match your printed colors.
For most users, the best method for matching colors on your screen to your product is to print sRGB
colors.
Sample book color matching
The process for matching product output to preprinted sample books and standard color references is
complex. In general, you can obtain a reasonably good match to a sample book if the inks used to create
the sample book are cyan, magenta, yellow, and black. These are usually referred to as process color
sample books.
Some sample books are created from spot colors. Spot colors are specially created colorants. Many of
these spot colors are outside of the range of the product. Most spot color sample books have companion
process sample books that provide CMYK approximations to the spot color.
Most process sample books will state which process standards were used to print the sample book. In
most cases they will be SWOP, EURO, or DIC. To get optimal color matching to the process sample
book, select the corresponding ink emulation from the product menu. If you cannot identify the process
standard, use SWOP ink emulation.
Print color samples
To use the color samples, select the color sample that is the closest match to the desired color. Use the
sample’s color value in your software program to describe the object you wish to match. Colors may
ENWW
Match colors
143