Service Key Combinations ● Diagnostic mode With the printer OFF, press and hold the UP and OK keys. While holding the Up and OK keys down, press and hold the Power key to turn on the printer. Hold all three keys until the Power key stops flashing, usually about 5 seconds. ● Service Menu (Service Engineers Only) From the main menu, press and hold the Up and Cancel keys. ● Service Menu (For users) From the main menu, press and hold the Down and Cancel keys. The Printer does not Power ON 1. Check that the power cord is connected correctly to the Printer and to the Power Socket. 2. Check that the Power Switch on the BACK of the Printer is in the ON position. 3.
Check to see the LED on the Front Panel Power Switch are On . 4. Check that the Front-Panel Cable is correctly connected to the Electronics Module. Also make sure that the Front-Panel cable is not damaged. 5. Replace the Power Supply Unit Refer Electronics Module (Main PCA and PSU) on page 298 . The Printer Continuously Rejects Printheads 1. Clean the flex contacts on the Printhead and in the Carriage Assembly using the Carriage Interconnect Wiper (Refer to Flex Contacts Cleaning Tool on page 22 ) and try again. 2. If ALL the Printheads are rejected (the status message on the Front Panel does NOT show " OK " for ALL the Printheads) then perform the Electronic Module Test Refer 3.
Electronics Module on page 90 . 4 Chapter 1 Ink Supplies Troubleshooting & Print Quality ENWW