SC TABLE
17 January, 2003
4-32
SC No.
Item
Definition
Possible Cause
Related
SCs
Troubleshooting Procedure
Type
SC 726 Finisher shift
tray 1 lift motor
error
•
The upper stack height 1
sensor is activated
consecutively (detecting
paper) for 15 seconds after
the shift tray starts moving
up.
•
The upper stack height
sensor 1 is deactivated
consecutively (not detecting
paper) for 15 seconds after
the shift tray starts moving
down.
•
When the upper tray moves
from lower paper exit to the
upper paper exit, the upper
stack height 1 sensor is
activated.
•
Loose connection
•
Defective upper stack
height 1 sensor
•
Defective shift tray 1
lift motor
•
Motor overload
1. Turn the main switch off and on.
2. Check if the connectors of the sensor
and motor are properly connected.
3. Replace the upper stack height 1
sensor.
4. Replace the shift tray 1 lift motor.
SC 727 Finisher stapler
rotation motor
error
The stapler cannot return to its
home position within a
specified time after the stapler
rotation motor starts rotating.
•
Loose connection
•
Defective stapler
rotation motor
•
Motor overload
1. Turn the main switch off and on.
2. Check if the stapler rotation motor
connector is properly connected.
3. Replace the stapler rotation motor.
SC 729 Finisher punch
motor error
The punch home position is
not detected within 250 ms
after the punch clutch turns on.
•
Loose connection
•
Defective punch H.P.
sensor
•
Defective punch
clutch
•
Defective punch hole
motor
1. Turn the main switch off and on.
2. Check if the connectors of sensor,
clutch and/or motor are properly
connected.
3. Replace the punch H.P. sensor.
4. Replace the punch clutch.
5. Replace the punch hole motor.
SC 730 Finisher stapler
motor error
The stapler home position is
not detected within a specified
time after the staple motor
turns on.
•
Loose connection
•
Defective stapler H.P.
sensor
•
Defective stapler
motor
1. Turn the main switch off and on.
2. Check if the connectors of the sensor
and motor are properly connected.
3. Replace the stapler H.P. sensor.
4. Replace the stapler motor.