HP 6L pro, 6L Gold manual Printing an engine test, Continuous self test

Continuous self test

Note

Note

The HP LaserJet 6L Pro does not support the continuous self test.

A continuous self test can be useful for troubleshooting paper path and other problems. To print a continuous self test:

1Disconnect the printer from the power source.

2Press and hold down the Control Panel Button while connecting power.

3Continue holding the button for about five seconds.

All lights will illuminate at once, then each will light in sequence.

4Release the button. The printer conducts its internal diagnostics routine, then prints the self-test page continuously until stopped.

5To stop the continuous self test (and reset the printer), press and hold the Control Panel Button for a few seconds until all lights begin lighting in sequence once again.

The self test does not print at the printer’s rated speed of 4 ppm (HP LaserJet 5L) or 6 ppm (HP LaserJet 6L). The engine test prints at the printer’s rated speed.

Printing an engine test

	The engine test print can be used to verify that the print engine is functioning correctly. The Formatter
	PCA is completely bypassed during an engine test. Consequently, this test is useful for isolating
	engine printer problems. For the HP LaserJet 5L and 6L printers, the engine test prints a full page of
	vertical lines down the entire printable area. For the HP LaserJet 6L Pro, the engine test prints a full
	page of horizontal lines across the entire printable area. These engine test pages are useful for
	checking and adjusting registration.
Note	Perform the engine test with the printer covers in place, as shown in Figure 3-6. Refer to “Engine Test”
	in Chapter 7 for the engine test procedure.

	Engine test printout	Engine test printout	Engine test button
	(5L/6L)	(6L Pro)
Figure 3-4	Engine test button

44 Operating overview EN