While mechanical fixes are more common, software "patches" are sometimes used for regional or chip-related issues: Firmware Reset:

: The flexible flat cable (FFC) connecting the scanner to the mainboard is a known weak point. If it is crimped or damaged, the scanner sensor data cannot reach the board. Replacing this cable often resolves persistent errors. Hardware Component Repair

Debris or dust on the scanner glass or sensors prevents the unit from calibrating during startup.

Over time, factory grease can harden—especially in cold environments—increasing resistance until the motor fails to move the carriage.