Ricoh Bc-C1, Field Service Manual, Page: 200 / 268

SC No. Level Error Name/Error Condition/Major Cause/Solution
• Motor driver defective
• Motor defective
• Scanner HP sensor defective
• Harness defective
• Timing belt, pulley, wire, or carriage not installed correctly
1. Perform the following operations.
• Check the harness.
• Check the timing belt, pulley, wire, or carriage installation.
2. Replace the following parts.
• Replace the scanner motor.
• Replace the scanner HP sensor.
SC No. Level Error Name/Error Condition/Major Cause/Solution
121-00 B Scanner home position error 2
• The scanner home position sensor does not go ON even if the
scanner moves 480 mm (from the sensor off area) or 30 mm (from
the sensor on position) at homing.
• The scanner home position sensor goes OFF on starting the DF
scanning/Book scanning.
• The scanner home position sensor does not go ON when the
scanner reaches to the specified position (in the sensor ON area)
from the scanning position
• This SC is issued only when the error signal of the scanner HP sensor
is detected three times consecutively to prevent the sensor detection
error due to some noise.
6. Troubleshooting
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