Lexmark Optra S 1620 User's Guide (7.1 MB) - Page 168

Using Print Materials Using Your Printer 8 Slide the paper tray in until it snaps into place. Duplexing (Two-Sided Printing) When you install the duplex option, you can print on both sides of most high-quality xerographic copier papers, office papers, and selected bond papers. For best results, use only non-recycled xerographic paper. Note: Papers suitable for duplexing may be loaded into all standard or optional trays, and the multipurpose feeder. Duplexing can place heavy demands on printer memory. However, the standard memory installed in your printer is sufficient for most duplexed jobs printed at 600 dpi. Duplexing very complex jobs, particularly when the print resolution is set to 1200, may require optional memory. When duplexing, side two is always printed first to ensure your pages are properly collated in the standard output bin. When you're duplexing preprinted forms-such as letterhead paper-from one of the paper trays, place the paper in the tray face up. See page 150. (Since letterhead must be placed face down for single-sided printing, you may want to reserve one tray for letterhead that you want to duplex.) See "Installing the Duplex Option" on page 273 for more information. 152 Using Print Materials