Lexmark C782 Service Manual - Page 150

5061 Quality troubleshooting (continued) Symptom Gray background ABCDE ABCDE ABCDE Cause Solution • The Toner Darkness setting is too dark. • The print cartridges are defective. • Select a different Toner Darkness setting from the printer driver before sending the job to print. • Replace the print cartridges. Uneven print density ABCDE ABCDE ABCDE • The print cartridges are defective. • The transfer roller is worn or defective. • The image transfer unit is worn or defective. • Replace the print cartridges. • Replace the transfer roller. • Replace the image transfer unit. Ghost Images Toner level is low in the print cartridges. Replace the print cartridges. Clipped images (Some of the print is cut off on the sides, top, or bottom of the paper.) Incorrect margins Skewed print (Print is inappropriately slanted.) Guides in the selected tray are set for a different size paper than what is loaded in the tray. Move the guides in the tray to the proper positions for the size loaded. • Guides in the selected tray are set for a different size paper than what is loaded in the tray. • Auto size sensing is set to off, but you loaded a different size paper in a tray. For example, you inserted A4 size paper into the selected tray but did not set the media size to A4. • Guides in the selected tray are not in the correct position for the media size loaded in the tray. • You are using paper that does not meet the printer specifications. • Move the guides in the tray to the proper positions for the size loaded. • Set the Paper Size to match the media in the tray. • Move the guides in the tray to the proper positions for the size loaded. • Refer to the Card Stock & Label Guide available on the Lexmark Web site at www.lexmark.com for detailed specifications. • For more information, see "Media guidelines" on page 1-17. 2-108 Service Manual