Oki ES2024 User's Guide, Windows, ES 2024/2024e - Page 175

FACTORS THAT AFFECT COLOR PRINTING The PCL and PostScript printer drivers supplied with your printer provide several controls for changing the color output. For general use the default driver settings 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. 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. Differences between the range of colors a monitor or printer can reproduce • 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. ES 2024/2024e Windows 2000 Operation • 175