Troubleshooting flowchart (continued)
Figure 7-2. Troubleshooting flowchart, continued
Troubleshooting power-on
When you turn on the printer, if it does not make any sound or if the control panel display is
blank, check the following items:
1. Verify that the printer is plugged into an active electrical outlet with the correct voltage.
2. Verify that the on/off switch is in the ON position.
3. Make sure the rear fan is running, indicating the system is operational.
4. Verify that the firmware DIMM and the formatter are seated and operating properly.
5. Remove any HP Jetdirect or other EIO cards, then try to turn the printer on again.
6. Make sure the control panel display is connected.
7. Check the fuses in the power supply.
264 Chapter 7 Troubleshooting ENWW
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