Lexmark Optra C710 Service Manual - Page 145

5016-001 Print Quality Service Checks Check the following before performing any of the print quality service checks. Print Quality Initial Service Check • Use tray 1 (integrated tray) to test the print quality of the base printer. • Be sure the fuser assembly is installed correctly. • Be sure that paper installed in tray 1 meets paper specifications. • Set the following: - Color correction: Auto - Print resolution: 600 dpi (print quality should be checked for both 600 and 1200 dpi) - Image enhance: OFF An incorrect printer driver, for the installed software, can cause problems. Incorrect characters could print and the copy may not correctly fit the page. Note: This symptom may require replacement of one or more customer replaceable units designated as supplies or maintenance items, which are the responsibility of the customer. With the customer's permission, you may need to install an ITM unit or a print cartridge Diagnostic Information 2-79