Sc Code Descriptions - Ricoh Aficio 1515 Service Manual

SERVICE CALL CONDITIONS

4.1.2 SC CODE DESCRIPTIONS

No.
Definition
101 B Exposure Lamp Error
The scanner has scanned the white
plate, but cannot detect the white level.
120 B Scanner home position error 1
The scanner home position sensor
does not detect the scanner leaving the
home position.
121 B Scanner home position error 2
The scanner home position sensor
does not detect the scanner coming
back to the home position.
143 D SBU white/black level correction error
The automatic SBU adjustment has
failed to correct the black level.
The automatic SBU adjustment has
failed to correct the white level twenty
times consecutively.
144 B Communication Error between BICU and SBU
The BICU cannot correctly establish
communication with the SBU.
Symptom
4-2
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
• Defective exposure lamp
• Unclean white plate
• Incorrect position or width of white
plate scanning (☛ SP4-015)
• Defective BICU board
• Defective SBU board
• Loose connection of the flat cable
between the BICU and the SBU
• Defective flat cable between the BICU
and the SBU
• Defective BICU
• Defective SBU
9 March 2004