Troubleshooting Performing a service test on a failed assembly If possible, always perform a Service Test on the component/assembly that you are about to replace, just to make sure that is the component/assembly that has failed. NOTE: If the test on that component/assembly passes, you should not replace it. For information on the Service Tests and how to use them see Diagnostics Menu on page 94 . Performing the necessary service calibrations Is the printer calibrated correctly after replacing a component? For information on the Service Calibrations and how to use them see Service Menu on page 128 . NOTE:
Remember that certain Calibrations are required even if an Assembly has been disassembled to gain access to another Assembly or Component. Solving print-quality problems Whenever a print-quality problem appears, it is advisable to print the Diagnostic Print to help diagnose the problem. The Diagnostic Print will help you differentiate between possible printhead errors and other problems such as incorrect front-panel selection, driver or RIP configuration or mechanical problems. The Front Panel is blank See What to do if the Front Panel is blank on page 55 . The printer does not power on See What to do if the Front Panel is blank on page 55 . The printer continuously rejects printheads 1.
Clean the flex contacts on the Printhead and in the Carriage Assembly using the Carriage Interconnect Wiper 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. See Electronics Module Test on page 106 . Cover sensors are not working 1. Perform the Sensors Test. See Sensors Test on page 113 . 2. Check that the cable for the faulty sensor is not damaged and is connected correctly. 3. Replace the faulty Sensor. 4 Chapter 1 Troubleshooting ENWW