Gestetner G060 Service Manual page 493

4.4 SC TABLE
NOTE: "CF" in the SC number column indicates a code related to the CF expander.
SC No. Item
SC 101 Exposure lamp
error
(CF)
SC 120 Scanner home
position error 1
(CF)
SM
Definition
• The standard white level • Exposure lamp
is not properly detected
• Lamp stabilizer
when scanning the
shading plate. (The
• Exposure lamp
shading data peak does
not reach the specified
• Standard white plate
threshold.)
• Scanner mirror or
• SBU defective
• The scanner home • Scanner PSU or SBU
position sensor does not
• Scanner motor
detect the on condition
during scanning.
• Harness between
• Scanner HP sensor
• Harness between
• Scanner wire, timing
Related
Possible Cause
SCs
defective
defective
connector defective
dirty
scanner lens out of
position or dirty
SC 121
and 122
defective
defective
scanner PSU and
scanner motor
disconnected
defective
SBU and HP sensor
disconnected
belt, pulley, or
carriage defective
4-11
Troubleshooting Procedure
1. Turn the main switch off and on.
2. Turn the power key off and on.
3. Check and clean the scanner
mirror(s) and scanner lens.
4. Check and clean the shading plate.
5. Replace the exposure lamp.
6. Replace the lamp stabilizer.
7. Replace the scanner mirror(s) or
scanner lens.
8. Replace the SBU.
1. Turn the main switch off and on.
2. Check the cable connection between
the scanner PSU and scanner motor.
3. Check the cable connection between
the SBU and HP sensor.
4. Replace the SBU or scanner PSU.
5. Replace the scanner motor.
6. Replace the HP sensor.
7. Replace the scanner wire, timing belt,
pulley, or carriage.
SC TABLE
Type
B
B
G570