HP 4700n Service Manual - Page 458

Some swatch books are created from spot colors. Spot colors are specially created colorants. Many of these spot colors are outside of the gamut of the printer. Most spot color swatch books have companion process swatch books that provide CMYK approximations to the spot color. Most process swatch books have a note about what process standards were used to print the swatch book. In most cases they will be SWOP, EURO, or DIC. To get optimal color matching to the process swatch book, select the corresponding ink emulation from the printer menu. If you cannot identify the process standard, use SWOP ink emulation. Using color HP ImageREt 3600 HP ImageREt 3600 print technology is a system that HP developed to deliver superior print quality and technological innovation. The HP ImageREt system incorporates technology that optimizes each element of the print system. Several categories of HP ImageREt have been developed that meet a variety of user needs. The system is comprised of key laser technologies for color printing, including image enhancements, smart supplies, and high-resolution imaging. The ImageREt core technologies are refined in higher level systems for more advanced system users, and additional technologies are integrated. The HP ImageREt 3600 is a complete HP proprietary printing solution, developed and implemented for the first time in the HP Color LaserJet 4700 printer. HP now offers superior image enhancements for general office and marketing documents. HP ImageREt 3600 performs well in different environmental conditions and with a variety of media, and the image mode is optimized for printing on HP High Gloss Laser Paper. Paper selection For the best color and image quality, select the appropriate media type from the printer menu or from the front panel. sRGB Standard red-green-blue (sRGB) is a world-wide color standard originally developed by HP and Microsoft as a common color language for monitors, input devices (scanners, digital cameras), and output devices (printers, plotters). It is the default color space used for HP products, Microsoft operating systems, the World Wide Web, and most office software that is sold today. sRGB is representative of the typical Windows computer monitor today and the convergence standard for high-definition television. NOTE Factors such as the type of monitor you use and the room's lighting can affect the appearance of colors on your screen. For more information, see Matching colors on page 437. The latest versions of Adobe® PhotoShop®, CorelDRAW®, Microsoft Office, and many other programs use sRGB to communicate color. Most importantly, as the default color space in Microsoft operating systems, sRGB has gained broad adoption as a means to exchange color information between programs and devices using a common definition that assures typical users will experience greatly improved color matching. sRGB improves your ability to match colors among the printer, the computer monitor and other input devices (scanner, digital camera) automatically, without the need to become a color expert. 438 Chapter 7 Troubleshooting ENWW