Description: Could not calibrate for the drop detect sensor location.
Remedy: Check that the sensor and the sensor drop detect sensor location. housing are properly aligned. Check that the service station cover is correctly seated over the sensor housing. Check that the sensor housing opening is clear of obstructions. Use the Pen nozzle and Drop detect tests, found in the service menu, to help troubleshoot. Use the Drop detect calibration, found in the service menu to recalibrate the position of the sensor. Check the drop sense cable connections. Replace the drop sensor.
Code: 0f0000
Description: Firmware error.
Remedy: Notify the HP Response Center or the nearest HP Sales and Support Office.