Toshiba e-STUDIO 2555C Service Manual page 721

[CB51] Staple unit sliding motor (M7) abnormality
MJ-1036
Error
Staple unit sliding motor (M7)
Staple unit sliding home position
sensor (S3)
Probable cause
Staple unit sliding motor (M7)
abnormality
Staple unit sliding home position
sensor (S3) abnormality
Faulty cables and connectors
Finisher control PC board (FIN)
abnormality
[CB51] Stapler shift home position error
Classification
Finisher related service call
MJ-1107
Check Item
Stapler
Stapler unit home position sensor
(S10)
Stapler unit shift motor (M4)
Replacement part
Stapler unit home position sensor
(S10)
Finisher controller PC board
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Timing of detection
The turning OFF of the staple unit sliding home position sensor (S3) is
not detected when the staple unit is moved from a point where this
sensor is turned ON to one point where this sensor is turned OFF after
the staple unit sliding motor (M7) has been driven at the specified
number of pulse.
The turning ON of the staple unit sliding home position sensor (S3) is
not detected when the staple unit is moved from a point where this
sensor is turned OFF to one point where this sensor is turned ON after
the staple unit sliding motor (M7) has been driven at the specified
number of pulse.
Checking and measures
Check if the electrical continuity of the coil is normal. If electricity is not
conducted, replace the staple unit.
Measure the voltage on TP18 on the finisher control PC board (FIN).
Then check that the measured voltage is 1V or lower when not
shielded and within the range of 3.3V
does not fall within the range mentioned, replace the sensor.
Check if the electrical continuity between the connector terminals is
normal. If electricity is not conducted, replace the connectors. (Finisher
control PC board (FIN): CN3, CN18)
If the error still occurs after replacing the staple unit, sensors and
connectors, exchange the finisher control PC board (FIN).
Stapler shift home position error: The stapler is not at the home
position.
If there is mechanical problem when the stapler is moved, fix
the mechanism.
• Sensor check
• Check the connectors and harnesses between the stapler
unit home position sensor (S10) and the finisher control PC
board (CN1).
Check the connectors and harnesses between the stapler unit
shift motor (M4) and the finisher control PC board (CN5).
8 - 165
±
5% when shielded. If the voltage
Contents
Measure
Measure
e-STUDIO2555C/3055C/3555C/4555C/5055C
ERROR CODE AND TROUBLESHOOTING
8