Description: Detected a mismatch in master roll information.
Code: D18-522
Description: Print drum ready for release (solenoid is ON).
Code: D19-223
Description: Master making unit ready for release (solenoid is ON).
Code: D22-540
Description: Error in access to the Drum PCB (unable to read from or write on the Drum PCB).
Code: D22-542
Description: Abnormal data on Drum PCB.
Code: E01-10
Description: Battery voltage was less than 2.5 V when the power was switched ON (weak battery: time to replace battery).
Code: E02-11
Description: Master counter reached the value set for the maintenance call (value set by test mode). [The message appears when either the power isturned ON, the unit is reset, or when the machine operation ended.]