HP 5000n manual Engine Test, No DC Power Cause Action

Table 7-4. No DC Power

Cause Action

No AC power is supplied.

The overcurrent/overvoltage detection circuit activated.

Check the AC power supply. See table 7-3, “No AC Power,” on page 7-8

If the problem is not rectified after the power switch is turned off and on again, find the cause of activation of the overcurrent/ overvoltage detection circuit in the power supply. Wait for more than two minutes before turning the printer back on.

Blown fuse.	1. Check the fuses (F2) on the Power Supply.
	2. Replace the fuses if necessary.
Defective power supply unit	Replace the power supply unit.

	Engine Test
	The engine test verifies that the print engine is functioning correctly.
	The Formatter PCA is completely bypassed during an engine test.
	This test is very useful for isolating printer problems. The engine test
	prints a full page of lines across the entire printable area, and is also
	useful for checking and adjusting registration. The engine test prints
	from the “Cold Reset Paper Tray” and can be activated with the
	Formatter PCA removed.
Note	The “Cold Reset Paper Tray” must be loaded with paper to perform an
	engine test. Also, ensure that the Toner Cartridge is installed in the
	printer.

EN Troubleshooting the Printing System 7-9