Introduction to Color

Management

Color management is based on color spaces. The range of colors, or gamut, perceived by the human eye, captured on film, displayed on a computer monitor, and rendered by a printer vary significantly. Each has its own color space, a mathematical means of describing its colors.

RGB is an additive color space that combines red, green, and blue light to create all other colors. Monitors, digital cameras, and scanners typically use RGB colors. CMYK color, on the other hand, is a subtractive color space using cyan, magenta, yellow, and black inks on paper to absorb red, green, and blue light. The remaining reflected light is the color perceived by the viewer.

Both RGB and CMYK color are device dependent color spaces; the colors they render depend on the device that produces the colors. Additionally, converting an image from RGB to CMYK compresses the colors into a smaller gamut. To complicate matters more, the CMYK color space of one printer can vary significantly from the CMYK color space of another printer. As the graphic below shows, the colors reproducible by different mediums can vary significantly.

1.Color visible to the human eye

2.Color film

3.Color monitor

4.Printer offset press on coated paper

5.Offset press on newsprint

The publishing industry has settled on a system of color management developed by the International Color Consortium (ICC). ICC-based color management relies on two things: device profiles called ICC profiles, which characterize how individual devices produce color, and a color engine (also called a color matching module or CMM), which reads those profiles and translates and corrects colors between devices.

ICC-based color management relies on a device independent color space. One of the common color spaces specified for use is CIE L*a*b* (CIE Lab, LAB). This color space provides a link between device dependent color spaces specific to various devices. LAB color space is based on the way the human eye perceives color and is device-independent. A LAB color engine can translate RGB, and CMYK values to and from LAB values. This translation acts as an interpreter between the color spaces. ColorSync, a color-management software for the Macintosh operating system, currently supports CMM color engines from vendors, such as

PhaserMatch and PhaserCal 4.0 User Guide

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Xerox 7760 manual Introduction to Color Management
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7760 specifications

The Xerox 7760 is a high-performance color multifunction printer designed to meet the diverse needs of modern work environments. Ideal for organizations requiring impressive document output, the 7760 stands out for its advanced features, robust technologies, and user-friendly characteristics that enhance productivity and streamline workflows.

One of the main features of the Xerox 7760 is its exceptional printing capability. With a print speed of up to 36 pages per minute (ppm) for both color and black-and-white output, this machine caters to high-volume tasks with ease. The printer produces vibrant and professional-quality prints with a maximum resolution of 2400 x 2400 dpi, ensuring that graphics and text are sharp and visually appealing. The inclusion of a variety of media handling options allows users to print on different paper sizes and types, ranging from standard letter sizes to unique formats.

The Xerox 7760 also employs innovative technologies to improve efficiency and reduce operational costs. Its built-in automated duplex printing feature allows users to print on both sides of the paper, significantly saving on paper usage and promoting environmentally friendly practices. In addition, the printer offers customizable print settings, enabling users to adjust color balance, saturation, and other parameters to achieve their desired output.

Another notable characteristic of the Xerox 7760 is its multifunctionality. This all-in-one device combines printing, copying, scanning, and faxing capabilities, making it a central figure in a busy office space. The intuitive touchscreen interface simplifies navigation and operations, allowing users to access features quickly and efficiently. The printer is also compatible with mobile printing solutions, enabling users to print directly from their smartphones and tablets, enhancing flexibility and convenience.

Moreover, the Xerox 7760 incorporates advanced security features designed to protect sensitive information. With secure printing options and user authentication capabilities, organizations can ensure that only authorized personnel can access confidential documents. The integration of advanced networking capabilities makes it easy for multiple users to connect and share resources, promoting collaboration in the workplace.

In summary, the Xerox 7760 is a multifunction printer that excels in performance, versatility, and security. Its impressive printing capabilities, user-friendly interface, and multifunctional characteristics position it as a valuable asset for any business seeking to enhance productivity and maintain high-quality document output.
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