Lexmark X464de Service Manual - Page 84

7014-xxx Option card service check Option card service check FRU Option cards Controller board Option card connection cable Warning: Do not replace the engine board and controller board at the same time. Each board contains the printer settings. When either of these boards is new, it obtains the settings from the other board. Settings are lost when both are new and replaced at the same time. Action Card Remove all the option cards from the device. Install each card individually. Restart the MFP after each card is installed. Remove the card and repeat the previous step with a different card till all cards are checked. When a faulty card is found, replace the card. See "Option board installs and removals" on page 4-105. If the error persists after replacing the option card, replace the controller board. See "Controller board removal" on page 4-8. If there are no errors found testing the cards individually, install the cards on at a time. Restart the MFP after each card is installed. Cables If the cards do not trigger an error, check the option card connection cables for continuity. USB port service check 1. Perform a print test to make sure the printer prints correctly. Verify that the indicator light is on, then print the menu settings by Menu Settings Page from the Reports Menu in the menus. 2. Be sure the printer usb cable is designed for bidirectional printing. 3. Be sure the user's application is set up correctly. 4. If the internal print test page prints correctly, the user's application/printer driver is set up correctly, and the USB cable is installed, but the printer still fails to print on command from the host computer, then replace the controller board. 5. Check the USB cable for continuity. 2-46 Service Manual