HP laserjet 2015 series Servicehandbuch

The engine test verifies that the print engine is functioning correctly. During the test, the printer prints
horizontal lines down the entire printable area of a page. The formatter is bypassed during the
engine test.

The formatter must be connected to the ECU to perform an engine test.

Remove the left side cover.

Press the engine-test switch. A single test page prints.

  Location of engine-test switch

The continuous self-test puts the device into a continuous printing mode without having to send jobs
to it.

Turn off the printer.

Press and hold the 

Go

 button.

Turn on the printer and continue to hold the 

Go

 button for approximately 20 seconds, but no

longer than 30 seconds, until the 

Attention

 and 

Ready

 lights illuminate.

Release the 

Go

 button.

If the 

Attention

,

Ready

, and 

Go

 lights illuminate before you release the 

Go

button, start again at step 1.

The

Ready

 light starts blinking, indicating that the device is performing a continuous self-test.

To terminate the continuous self-test, press the 

Cancel

 button.

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Chapter 7   Problem solving

ENWW