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Cleaning the Toner Density Sensor

Clean the toner density sensor when the following message appears on the control panel.

“Sensor cleaning required.”


  • Be careful not to trap your fingers when opening or closing the top cover.

1Pull up top cover open lever to open the top cover.

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2Lift out the cyan print cartridge.

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3Slide the toner density sensor lever once to the left.

Toner density sensor lever illustration

Slide the lever only once.

4To reattach the cyan print cartridge removed in step 2. Push it all the way in carefully.

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5Close the top cover with both hands carefully. Be careful not to trap your fingers.

Printer illustration