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Troubleshooting
4-11 CL-S6621
Symptoms Checks Remedies
Label on liner or
notch of tag is not
detected.
(Transparent sensor
problem)
or
Paper end is not
detected.
1. Is the Media Sensor menu setting
correct?
2. Does the marker of Transparent Sensor
match with that of the bottom sensor
(Reflective Sensor)?
3. Is the sensor adjustment performed
against media to be used?
4. Is the “FFC, TRA Sensor” (flexible
cable) firmly connected between the
“SA TRA Sen PCB” and the “SA, Main
PCB” (J9)?
5. Is the “FFC, TRA Sensor” (flexible
cable) inserted correctly (not upside
down) on the “SA, Main PCB” (J9)?
6. Is the “SA, Ref Sensor Cable” firmly
connected between the “SA Ref Sen
PCB” and the “SA, Main PCB” (J8)?
7. Is dust on the LEDs of the Reflective
Sensor?
8. Failure in the Transparent Sensor or the
Reflective Sensor.
9. Failure in the control circuit.
1. Set it to “See Through”.
2. They match each other unless they
are reassembled incorrectly.
Correct them.
Note: Refer to Chap. 3
"Disassembly and Maintenance".
3. Perform the sensor adjustment.
See “2-3-2 (1-1) Sensor
Adjustment mode”.
4. Connect it firmly.
5. Insert it in the correct direction.
6. Connect it firmly.
7. Clean the LEDs to remove dust.
8. Replace the “SA TRA Sen PCB” or
the “SA Ref Sen PCB”.
9. Replace the “SA, Main PCB”.
Black mark on tag is
not detected.
(Reflective sensor
problem)
or
Paper end is not
detected.
1. Is the Media Sensor menu correct?
2. Does the Reflective Sensor match with
the black mark?
3. Is the sensor adjustment is performed
against media to be used?
4. Is the “SA, Ref Sensor Cable” firmly
connected between the “SA Ref Sen
PCB” and the “SA, Main PCB” (J8)?
5. Is dust on the LEDs or photo transistor
of the Reflective Sensor?
6. Failure in the Reflective Sensor.
7. Failure in the control circuit.
1. Set it to “Reflect”.
2. Match them.
3. Perform the sensor adjustment.
See “2-3-2 (1-1) Sensor
Adjustment mode”.
4. Connect it firmly.
5. Clean the LEDs to remove dust.
6. Replace the “SA Ref Sen PCB”.
7. Replace the “SA, Main PCB”.