Toshiba e-studio 2555c, Service Manual

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© 2012-2013 TOSHIBA TEC CORPORATION All rights reserved e-STUDIO2555C/3055C/3555C/4555C/5055C
ERROR CODE AND TROUBLESHOOTING
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[CB51] Staple unit sliding motor (M7) abnormality
MJ-1036
[CB51] Stapler shift home position error
MJ-1107
Error Timing of detection
Staple unit sliding motor (M7)
Staple unit sliding home position
sensor (S3) 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.
Probable cause Checking and measures
Staple unit sliding motor (M7)
abnormality Check if the electrical continuity of the coil is normal. If electricity is not
conducted, replace the staple unit.
Staple unit sliding home position
sensor (S3) abnormality 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
±
5% when shielded. If the voltage
does not fall within the range mentioned, replace the sensor.
Faulty cables and connectors 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)
Finisher control PC board (FIN)
abnormality If the error still occurs after replacing the staple unit, sensors and
connectors, exchange the finisher control PC board (FIN).
Classification Contents
Finisher related service call Stapler shift home position error: The stapler is not at the home
position.
Check Item Measure
Stapler If there is mechanical problem when the stapler is moved, fix
the mechanism.
Stapler unit home position sensor
(S10) • Sensor check
• Check the connectors and harnesses between the stapler
unit home position sensor (S10) and the finisher control PC
board (CN1).
Stapler unit shift motor (M4) Check the connectors and harnesses between the stapler unit
shift motor (M4) and the finisher control PC board (CN5).
Replacement part Measure
Stapler unit home position sensor
(S10)
Finisher controller PC board