Lexmark X502n Service Manual - Page 109

Lexmark confidential until announce edited 1/4/2007 7100-XXX 3. Diagnostic aids This chapter explains the tests and procedures to identify MFP failures and to verify repairs have corrected the problem. Understanding the MFP operator panel . The use of the buttons and the layout of the operator panel is described in the following table. Number Button 1 LCD Display 2 Alpha / Numeric Keys 3 Black Start 4 Color Start 5 Stop / Clear 6 Menu Keys 7 Copy LED 8 Scan LED 9 Fax LED Function All modes - Displays messages and prompts during operation. Displays settings when new settings are specified. Enters numbers and letters in the setting menu. Copy mode - Enter copy quantity. Scan mode - Enter ASCII characters for a Push Scan profile search. Fax mode - Enter a Fax number. Enter ASCII characters for Fax speed dial searches. initiates a black and white scan job in Copy and Scan modes. initiates the Fax TX in Fax mode. initiates a color scan in Copy and Scan modes. Non functional in Fax mode. Cancels copy, scan, and fax jobs. Up / Down keys - These keys are used to scroll through selections. can be used to clear an item, and can be used to enter a space. Return - Exits to an upper level of a menu. Select - This key is used to select and confirm settings, or enter a submenu. Switches the MFP to Copy mode. Switches the MFP to Scan mode. Switches the MFP to Fax mode. Diagnostic aids 3-1