Oki C5400 Technical Reference, Macintosh - Page 6

Color Print Matching The install utility provides a color matching profile for your printer. In general, using these Color Matching settings will provide reasonable default settings that produce good results for most documents. Many applications have their own color settings and these may override the settings in the printer driver. Please refer to the documentation for your software application for details on how that particular program's color management functions. Factors That Affect the Appearance of Printed Documents If you wish to manually adjust the color settings in your printer driver, please be aware that color reproduction is a complex topic, and there are many factors to take into consideration. Some of the most important factors are listed below. Range of Colors: Monitors Versus Printers • Neither a printer nor a monitor is capable of reproducing the full range of colors visible to the human eye. Each device is restricted to a certain range of colors. In addition to this, a printer cannot reproduce all of the colors displayed on a monitor, and vice versa. • Both devices use very different technologies to represent color. A monitor uses Red, Green and Blue (RGB) phosphors (or LCDs), a printer uses Cyan, Magenta, Yellow and Black (CMYK) toner or ink. • A monitor can display very vivid colors such as intense reds and blues and these cannot be easily produced on any printer using toner or ink. Similarly, there are certain colors, (some yellows for example), that can be printed, but cannot be displayed accurately on a monitor. This disparity between monitors and printers is often the main reason that printed colors do not match the colors displayed on screen. Viewing conditions A printed document can look very different under different lighting conditions. For example, the colors may look different when viewed Color Print Matching: • 6