Currently, multifunction printers have an integrated 2D scanner. This scanner is used to perform several functions such as scan, scan©, CLC calibration, etc. In some products, these scanners are composed by several modules. These modules may deteriorate or break during the life of the printer so they are not valid or optimal for the aforementioned functions. In the present disclosure, it is presented a method to diagnose a malfunction of one or more of the scanner modules and to perform a calibration to correct them if possible
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INC, HP, "SCANNER AUTO-DIAGNOSTIC PROCEDURE", Technical Disclosure Commons, (November 21, 2022)