SERVICE CALL CONDITIONS
B234/B235/B236/D101/D102/D103
4-14
SM
Encoder Signal Error
SC124
B
The scanner motor encoder
connector is not set correctly, or
the encoder signal was not
input.
•
Scanner motor encoder connector
disconnected
•
Scanner motor lead connector
disconnected
•
Scanner motor defective
•
MCU board defective (scanner motor
control unit)
•
Scanner wire, timing belt, pulleys, or
carriage installation incorrect
•
Power supply connector disconnected
(+38V
±
24V)
•
Power supply unit (PSU-E board)
defective
Scanner Motor Error 1
SC125
B
Scanner motor stopped before
feedback from scanner HP
sensor detected, or motor speed
too slow when detected at
scanner HP sensor.
•
Scanner motor defective (high torque)
•
Overload on scanner drive mechanism
•
MCU board defective (scanner motor unit
control)
Scanner Motor Error 2
SC126
B
The scanner motor does not
stop within 15 mm after the
scanner home position sensor
turns on when the scanner
returns.
•
Scanner motor defective (low torque)
•
Overload on scanner drive mechanism
•
MCU board defective (scanner motor
control unit)
Scanner Motor Error 3
SC127
B
The scanner motor rotates in the
opposite direction to the signal
from the MCU board.
•
Scanner motor defective (motor lead
connected incorrectly)
•
MCU board defective (scanner motor
control unit)
Scanner Motor Error 4
SC128
C
The scanner motor speed does
not reach the target speed by
the time the scanning start point
is reached.
•
Scanner motor defective
•
Overload on scanner mechanism
•
PSU-Eb board defective
•
MCU board defective (scanner motor
control unit)
