Toner Level Sensing for Replaceable Unit of an Image Forming Device

摘要

A method for estimating an amount of toner remaining in a reservoir of a replaceable unit for an image forming device according to one example embodiment includes receiving by processing circuitry pulses from a magnetic sensor. Each pulse is indicative that the magnetic sensor detected a magnet on a moving paddle positioned in the reservoir. The processing circuitry counts the number of the pulses received from the magnetic sensor. Upon receiving a request from a controller of the image forming device, the processing circuitry sends to the controller of the image forming device the count of the pulses received from the magnetic sensor and resets the count of the pulses received from the magnetic sensor.

主权项

1. A method for estimating an amount of toner remaining in a reservoir of a replaceable unit for an image forming device, the method comprising:
receiving by processing circuitry pulses from a magnetic sensor, each pulse indicative that the magnetic sensor detected a magnet on a moving paddle positioned in the reservoir; counting by the processing circuitry the number of the pulses received from the magnetic sensor; and upon receiving by the processing circuitry a request from a controller of the image forming device in communication with the processing circuitry for the count of the pulses received from the magnetic sensor, sending by the processing circuitry to the controller of the image forming device the count of the pulses received from the magnetic sensor and resetting by the processing circuitry the count of the pulses received from the magnetic sensor.