C7350 User’s Guide > 77COLOUR PRINTINGThe PCL and PostScript printer drivers supplied with your C7350provide several controls for changing the colour output of yourprinter. For general use the Auto settings will suffice, providingreasonable default settings that will produce good results formost documents.Many applications have their own colour settings, and these mayoverride the settings in the printer driver. Please refer to thedocumentation for your software application for details on howthat particular program’s colour management functions.FACTORS THAT AFFECT THE APPEARANCE OF PRINTSIf you wish to manually adjust the colour settings in your printerdriver, please be aware that colour reproduction is a complextopic, and there are many factors to take into consideration.Some of the most important factors are listed below.Differences between the range of coloursa monitor or printer can reproduceNeither a printer nor a monitor is capable of reproducing the fullrange of colours visible to the human eye. Each device isrestricted to a certain range of colours. Furthermore, a printercannot reproduce all of the colours displayed on a monitor, andvice versa.Both devices use very different technologies to represent colour.A monitor uses Red, Green and Blue (RGB) phosphors (or LCDs),a printer uses Cyan, Yellow, Magenta and Black (CMYK) toner orink.A monitor can display very vivid colours such as intense reds andblues, which cannot be easily produced on any printer using toneror ink. Similarly, some printed colours (some yellows forexample) cannot be displayed accurately on a monitor. Thisdisparity between monitors and printers is often the main reasonthat printed colours do not match the colours displayed onscreen.Viewing conditionsA print can look very different under different lighting conditions.For example, the colours in a print may look different when
