HP INCFollow


This invention presents a new calibration to avoid reading incorrect values from the

line sensor. This sensor is usually calibrated relatively to a dark and light reference

values so, if not executed in valid positions it will operate in a wrong luminosity range.

The darkest position is placed over the hole of the optical detector. However, this

position can be compromised either because of mechanical tolerances or because of

other external circumstances like ink leakages. This problem is avoided if the position

is first calibrated searching for the darkest position ensuring a valid reference value.

Creative Commons License

Creative Commons License
This work is licensed under a Creative Commons Attribution-Share Alike 4.0 License.