Gestetner B147 Service Manual page 238

SC TABLE
SC No. Item
SC 726 Two-tray • The upper stack height 1
finisher shift
tray 1 lift motor
error
• The upper stack height
• When the upper tray moves
SC 727 Two-tray The stapler cannot return to its
finisher stapler home position within a
rotation motor specified time after the stapler
error rotation motor starts rotating.
SC 729 Two-tray The punch home position is
finisher punch not detected within 250 ms
motor error after the punch clutch turns on.
SC 730 Two-tray The stapler home position is
finisher stapler not detected within a specified
motor error time after the staple motor
turns on.
B147/B149/B190
Definition
• Loose connection
sensor is activated • Defective upper stack
consecutively (detecting
paper) for 15 seconds after
• Defective shift tray 1
the shift tray starts moving
up.
• Motor overload
sensor 1 is deactivated
consecutively (not detecting
paper) for 15 seconds after
the shift tray starts moving
down.
from lower paper exit to the
upper paper exit, the upper
stack height 1 sensor is
activated.
• Loose connection
• Defective stapler
• Motor overload
• Loose connection
• Defective punch H.P.
• Defective punch
• Defective punch hole
• Loose connection
• Defective stapler H.P.
• Defective stapler
Related
Possible Cause
SCs
height 1 sensor
lift motor
rotation motor
sensor
clutch
motor
sensor
motor
4-36
Troubleshooting Procedure
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.
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.
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.
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.
Type
B
B
B
B
SM