NOTE
If the printer’s display is blank, but the power-on checks pass, try printing an engine test
page to determine whether the problem is with the engine/display or with the formatter. See
Engine test page for instructions.
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
and not plugged into a surge protector or power strip.
2. Verify that the on/off switch is in the ON position.
3. Make sure the fan is running, indicating the system is operational.
4. Verify that the firmware DIMM (HP 3700 only) and the formatter are seated and
operating properly.
5. Remove any HP Jetdirect or other devices, then try to turn the printer on again.
310 Chapter 7 Troubleshooting ENWW
