Follow the steps below until the issue is resolved. All of the following steps might not be necessary to resolve the issue.
With the unit still powered on, open Cartridge Access Door and look for any foreign debris. Remove any foreign material that may be obstructing the seating of the access door.
Close access door.
If the issue is not resolved, continue to the next step.
Open the Cartridge Access Door again.
Slowly close the access door while listening for an audible click of the switch.
If the issue is resolved, you do not need to continue with the rest of the instructions on this page.
If the issue is not resolved, and/or there is no audible click, continue to the next step.
Open the Cartridge Access Door and look into the mid-chassis opening to see if the metal lever is present.
If the metal lever is missing, then it cannot properly trigger the switch and the sensor is faulty. Continue to the next step.
Figure 3: Metal lever present
Figure 4: Metal lever missing
If you have completed all of the steps listed above and are still experiencing a problem, service the HP All-in-One.
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