Patent ID: 8805252

Claim:
A computer-based method for preventive maintenance detection for a color printer including a photoreceptor belt (PB) arranged to displace in a process direction, comprising: storing, in a memory element of a computer: at least one threshold value; computer readable instructions; and, registration data for a plurality of markings, associated with a first color, on a surface of the PB, the registration data including for each marking in the plurality of markings, a respective registration difference, in a lateral direction orthogonal to the process direction, between a respective actual location and a respective original location; and, executing, using a processor for the computer, the computer readable instructions to: determine that at least one marking from the plurality of markings is out of compliance with the at least one threshold value; and, in response to determining that at least one marking from the plurality of markings is out of compliance with the at least one threshold value, transmit a signal, indicating that maintenance is required for the PB, for display.