Dell 5110cn User Guide - Page 226

Printing Problems Problem Job did not print or incorrect characters printed. Print media misfeeds or multiple feeds occur. Action Make sure Ready to Print appears on the operator panel before you send a job to print. Press Menu to return to Ready to Print. Make sure print media is loaded in the printer. Press Menu to return to Ready to Print. Verify the printer is using the correct page-description language (PDL). Verify that you are using the correct printer driver. Make sure you are using the correct Ethernet, USB, or IEEE cable and it is securely connected at the back of the printer. Verify that the correct print media size is selected. If using a print spooler, verify that the spooler has not stalled. Check the printer interface from the Admin Menu menu. Determine the host interface you are using. Print a Panel Settings page to verify that the current interface settings are correct. Make sure the print media you are using meets the specifications for your printer. See "Print Media Supported" for more information. Flex print media before loading it in any of the sources. Make sure the print media is loaded correctly. Make sure the width and length guides on the print media sources are adjusted correctly. Do not overfill the print media sources. Do not force print media into the multipurpose feeder when you load it; otherwise, it may skew or buckle. Remove any curled print media from sources. Load the recommended print side correctly for the type of print media you are using. See "Loading Print Media in Standard and Optional Trays" for more information. Turn the print media over or around and try printing again to see if feeding improves. Do not mix print media types. Do not mix reams of print media.