Gestetner G060 Service Manual page 499

SC No. Item
SC 240 LD over
240-1: Y
240-2: M
240-3: C
240-4: K
SC 260 LD HP sensor
not switched on
(for K only)
SC 261 LD HP sensor
not switched off
(for K only)
SM
Definition
• LD worn out
The power supply for the LD
unit exceeds 67 mA.
• LD broken (short
• Defective motor
During homing, it takes
• Defective sensor
more than five seconds to
• Mechanical problem
switch the HP sensor on
(the sensor actuator does
not cover the sensor).
• Brown fuse (FU81) on
• Defective motor
After the laser beam pitch
• Defective sensor
was changed, it takes more
• Mechanical problem
than five seconds for the HP
sensor to switch off.
• Brown fuse (FU81) on
Related
Possible Cause
SCs
(current/light output
characteristics have
changed.)
circuit)
when switching the
actuator
the Power supply unit
when switching the
actuator
the Power supply unit
4-17
Troubleshooting Procedure
1. Turn the main switch off and on.
2. Replace the LD unit.
1. Turn the main switch off and on.
2. Check the sensor actuator position of
the LD positioning motor.
3. Replace the LD positioning motor.
4. Replace the LD home position
sensor.
5. Check and/or replace the PSU.
1. Turn the main switch off and on.
2. Check the sensor actuator position of
the LD positioning motor.
3. Replace the LD positioning motor.
4. Replace the LD home position
sensor.
5. Check and/or replace the PSU.
SC TABLE
Type
B
B
B
G570