SC No. Level Error Name/Error Condition/Major Cause/Solution
SC121-00 D Scanner Home Position Error 2
The scanner home position sensor does not go ON.
Details:
Error detection timing
• During homing
• During an automatic adjustment
• During a scan from the ADF or exposure glass.
• Scanner motor driver defective
• Scanner motor defective
• Scanner HP sensor defective
• Harness defective
• Timing belt, pulley, wire, or carriage not installed correctly
Replace the following parts:
• Replace the home position sensor
• Replace the scanner motor
• Replace the harness.
SC No. Level Error Name/Error Condition/Major Cause/Solution
SC141-00 D Black level detection error
The black level cannot be adjusted within the target during auto gain
control.
• SBU defective
• IPU defective
• Power/signal harness defective
1. Turn the power off/on.
2. Reconnect the power/signal harness.
3. Replace the following parts:
• Replace the SBU board.
• Replace the IPU board.
• Replace the power/signal harness.
Service Call 101-195
453
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