Lexmark C720 User's Guide - Page 28

7 Controlling printed output Your printer driver provides you with the best quality output for various types of printing needs. However, you may want more control over how your printed document will look. You can control the screening methods, graphics effects, and fill resolution used during printing. These setting adjustments can easily be made through your printer driver, operator panel, or MarkVision remote operator panel. Adjusting any of these settings affects the output of your documents. You can return your printer driver to the factory default settings by selecting the Restore Defaults button on the printer driver screen or restoring the default settings at the operator panel. Driver Settings Print Quality Your printer is a four-color process printer that uses the CMYK color model. One of the most important issues for printing using the CMYK model is how the printer combines each of the four colors on the page. The process used to produce this high quality print is known as screening. When printing in color, you use four different color planes or screens. A separate dot pattern is created for each of these color planes. These separate dot patterns are then combined (effectively laid on top of each other) to produce your final full-color image. Your color printer uses different screening methods depending on the material to be printed. There are two print quality settings you can choose from; 600 dpi (dots per inch) and 2400 IQ (image quality). The 600 dpi setting provides true 600 x 600 dpi resolution. The default setting 2400 IQ, enhances images you send to the printer. The 2400 IQ setting also provides an optimum balance for most printing needs. 28