Basic troubleshooting Table 15. Basic troubleshooting # Verification steps Possible problems Solutions 1 Is Power On successful? When the product is connected to a grounded power source, Hewlett Packard is displayed with moving cursors indicating that the firmware code is loading, and the printer motor rotates for approximately five seconds. When the firmware is done loading (30-40 seconds after power-on), Scanner bulb management is displayed and the scan head moves back and forth for 10-15 seconds. If you lift the lid, you will see that the scanner bulb is lit. Near the end of this time, the ADF motor turns on for about two seconds.
No power due to failed power source, cable, switch, or fuse. 1. Verify that the product is plugged in. 2. Verify that the power cable is functional and that the power switch is on (220v only). 3. Verify that FU102 on the ECU is not open. 4. If all of these conditions are correct, replace the ECU. Printer motor does not rotate. 1. Verify that the toner cartridge is present. 2. Verify that the product doors are closed. 3. Verify that paper is loaded in the paper input tray. 4. Verify that the printer path paper sensors are functional. 5. Verify that the motor connector J1 is seated into the ECU. 6. Verify that the motor is correctly mounted to the product chassis. 7.
If all of these conditions are correct, replace the ECU. 8. If, after replacing the ECU, the printer motor still does not rotate, replace the motor. ADF motor does not rotate or scanner bulb does not light. 1. Verify that the scanner connector is seated in the formatter and scanner formatter. 2. Check all cabling on the scanner formatter. 3. If the ADF motor still does not rotate, replace the ADF. 4. If the scanner bulb still does not light, replace the scanner assembly. 5. If the problem persists, replace parts one at a time in the following order until the problem is resolved: scanner formatter, formatter, and finally the ECU. 174 Chapter 6 - Troubleshooting EN