Service manual

SC TABLE
SM 4-21 G130/G131
SC No. Item Definition Possible Cause
Related
SCs
Troubleshooting Procedure Type
SC
503-02
Tray 3 error
(Paper Feed
Unit or LCT)
This SC is generated if the
following condition occurs 3
consecutive times.
For the paper feed unit:
• When the main switch is
turned or when the tray is
set and if the upper limit is
already detected, the lift
motor turns on to lower the
bottom plate until the lift
sensor goes off.
• If the motor turns on for 7
seconds or more, the
machine asks the user to
reset the tray.
For the LCT:
• When the main switch is
turned on or when the LCT
is set, if the end fence is not
in the home position (home
position sensor ON), the tray
lift motor stops.
For the paper feed unit:
• Defective tray lift motor
or connector
disconnection
• Defective lift sensor or
connector
disconnection
•
For the LCT:
• Defective stack
transport clutch or
connector
disconnection
• Defective tray motor or
connector
disconnection
• Defective end fence
home position sensor
or connector
disconnection
1. Turn the main switch off and on.
2. Check the cable connections.
3. Check and/or replace the defective
component.
B
SC
504-01
Tray 4 error (3
Tray Paper
Feed Unit)
When the tray lift motor is
turned on, (if the upper limit is
not detected within 18
seconds), the machine asks
the user to reset the tray. If this
condition occurs three
consecutive times, the SC is
generated.
• Defective tray lift motor
or connector
disconnection
• Defective lift sensor or
connector
disconnection
1. Turn the main switch off and on.
2. Check the cable connections.
3. Check and/or replace the defective
component.
B