Ricoh D146 Service Manual page 487

SC No. Level
SC121-00 D
SC No. Level
SC141-00 D
SM
Error Name/Error Condition/Major Cause/Solution
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.
Error Name/Error Condition/Major Cause/Solution
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.
5-13
Service Call 101-195
D146/D147/D148/D149/D150