Lexmark C520 Service Manual - Page 94

5022-xxx To set the configuration ID: 1. Select Printer Setup from the Diagnostic mode. 2. Select Configuration ID from the Printer Setup menu. Submitting Selection displays, followed by the value for Configuration ID 1. 3. Enter the Configuration ID 1. • To select a digit or character to change, press or until the digit or character is underlined. • To change a digit or character, press to increase or to decrease the value. • When the last digit is changed, press to validate the Configuration ID 1. If Invalid ID appears, the entry is discarded, and the previous Configuration ID 1 is displayed on the screen. If the process is successful, Submitting Selection appears on the display, followed by the current value for Configuration ID 2. 4. Repeat the steps for entering the Configuration ID, and press . If the Configuration ID 2 is validated, Submitting Selection appears, and a check ( ) appears next to Printer Setup. 5. Restart the printer. EP Setup EP Defaults This setting is used to restore each printer setting listed in EP SETUP to its factory default value. Sometimes this is used to help correct print quality problems. To restore EP Defaults: 1. Select EP Defaults from EP SETUP. 2. Select Restore to reset the values to the factory settings, and select Do Not Restore to exit without changing the settings. Fuser Temperature (Fuser Temp) This adjustment can be used to help solve some customer problems with paper curl on low grade papers and problems with letterheads on some types of media. The fuser temperature can be adjusted to: Low, Normal, High. The default is Normal. DC Charge Adjust, Dev Bias Adj, Transfer Adjust Each of these three settings enables you to adjust the high voltage levels controlling the electrophotographic process. You will use these settings to compensate for unusual operating circumstances such as high humidity. The printer uses the value of these settings together with other settings to calculate printing speed and media selection. Diagnostic aids 3-17