HP laserjet m712 Guide De Dépannage

Check the control-panel display for sensor response.

If there is no response, replace the sensor.

Open the HCI right door.

Lift the jam access flap (callout 1), and then use a small flat-blade screwdriver to lift the sensor

lever (callout 2).

  HCI exit sensor

1

2

Check the control-panel display for sensor response.

If there is no response, replace the sensor.

Use this diagnostic test to isolate the cause of problems such as image-formation defects and jams

within the engine. During this test you can stop the paper anywhere along the product paper path. The

test can be programmed to stop printing internal pages or an external print job when the paper

reaches a certain position. The test can also be programmed to stop from 0 to 60,000 ms. If the timer

is set to a value that is greater than the job-print time, you can recover the product in one of two ways.

At the product control panel, press the Home   button.

Open the following menus:

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Chapter 2   Solve problems

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