Description: Fewer than five pulses are generated by the drum motor encoder in 1 s after the drum motor on signal has been emitted.
Code: C240
Description: Paper deck motor problem--The paper deck level switch or the home position switch fails to turn on within 20 s after the paper deck motor on signal has been emitted.
Code: C250
Description: Upper drawer motor problem--The upper drawer level switch or the position switch fails to turn on within 8 s
Code: C251
Description: Middle drawer motor problem--The middle drawer level switch or the position switch fails to turn on within 8 s after the middle drawer motor on signal has been emitted.
Code: C252
Description: Lower drawer motor problem--The lower drawer level switch or the position switch fails to turn on within 8 s after the middle drawer motor on signal has been emitted.
Code: C310
Description: Scanner motor problem (main PCB problem)--The home position switch fails to turn on within 4 s after the scanner motor reverse signal has been emitted.
Code: C311
Description: Scanner motor problem (servo motor PCB problem)--No signal is generated by the encoder 20ms after the scanner motor reverse signal has been emitted.
Code: C312
Description: Scanner motor problem3523 or more SM forward pulses are received after the scanner motor has started to rotate forward. The scanner motor speed exceeds the specified level.