1.SC Codes
40
SC121-00
Error Name
Scanner Home Position Error 2
Pattern
D
Error Condition
The scanner HP sensor does not go ON.
The carriage does not return to its home position, or the sensor fails to detect the carriage even though
it has returned to its home position.
Major Cause
1. Timing belt, pulley, wire, or carriage are not installed correctly
2. Connectors are not connected properly
3. Scanner HP sensor (SEN104) is defective.
4. BiCU is defective.
5. Scanner motor (STM107) is defective.
6. Harnesses are defective.
Solution
1. Timing belt, pulley, wire, or carriage not installed correctly
Check that the timing belt, pulley, or wire are installed correctly.
Reinstall if necessary.
2. Connectors not connected properly
Check all the connectors are properly connected.
Reconnect the connectors if necessary.
3. Replace the scanner HP sensor (SEN104).
4. Scanner motor driver/Scanner drive control board (BiCU) defective
Replace the BiCU board.
5. Replace the scanner motor (STM107).
6. Replace harnesses
NCheck the scanner HP sensor by turning on/off the sensor. (SP5-803-200)
If the single-digit value of SP5-803-200 does not change, check the scanner HP sensor.
SC141-00
Error Name
Black Level Detection Error (Front)
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