Lexmark MX310
This option lets you print two or more pages of an original document on the same page. Paper Saver is also called N-up printing where N stands for the number of pages. For example, 2-up would print two pages of your document on a single page, and 4-up would print four pages of your document on a single page.
The Difference Between Power Saver (Sleep) Versus Hibernation on a Lexmark Printer/MFP
Here are steps to troubleshoot a 200.03 paper jam on a Lexmark MS/MXx1x series printer.