HP 4500 DN manual Cleaning the Toner Density Sensor, To clean the toner density sensor

Cleaning the Toner Density Sensor

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The toner density sensor should be cleaned whenever the imaging drum is replaced or whenever the control panel message DENSITY SENSOR OUT OF RANGE displays.

CAUTION

To avoid scratching the sensor, do not clean it with any paper products.

To clean the toner density sensor

1Open the lower front drawer and remove the cleaning brush mounted inside.

2Pull open the top front drawer.

3Remove the imaging drum by the blue handle.

4Use the cleaning brush to remove all dust and toner particles from the sensor as illustrated.

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