Ricoh D069 Field Service Manual page 216

3. Appendix: Service Call Conditions
Engine SC Code Descriptions
No.
Definition
3
101 B
120 B
121 B
24
Symptom
Exposure Lamp Error
The scanner has scanned the white plate,
but cannot detect the white level.
Scanner home position error 1
The scanner home position sensor does
not detect the scanner leaving the home
position.
Scanner home position error 2
The scanner home position sensor does
not detect the scanner coming back to the
home position.
Possible Cause
• Defective exposure lamp
• Defective exposure lamp stabilizer
• Defective exposure lamp connector
• Unclean scanner mirror
• Scanner mirror out of position
• Defective SBU board
• Defective SBU connector
• Lens block out of position
• Incorrect position or width of white
plate scanning ( SP4-015)
• Defective scanner home position
sensor
• Defective scanner drive motor
• Defective scanner home position
sensor connector
• Defective scanner drive motor
connector
• Defective BICU board
• Defective scanner home position
sensor
• Defective scanner drive motor
• Defective scanner home position
sensor connector
• Defective scanner drive motor
connector
• Defective BICU board