SERVICE CALL CONDITIONS
SM 4-3 B264/B265
Trouble-
shooting
4.1.3 SC CODE DESCRIPTIONS
Exposure lamp error 101 D
The standard white level was not
detected properly when scanning the
white plate.
• Exposure lamp defective
• Lamp stabilizer defective
• Exposure lamp connector defective
• Standard white plate dirty
• Scanner mirror or scanner lens out of
position or dirty
• SBU defective
Scanner home position error 1 120 D
The scanner home position sensor
does not detect the on condition during
initialization or copying.
• SIB or scanner drive motor defective
• Scanner motor defective
• Harness between SIB and scanner
drive motor disconnected
• Harness between SIB and scanner
drive motor power source
disconnected
• Scanner HP sensor defective
• Harness between SIB and HP sensor
disconnected
• Scanner wire, timing belt, pulley, or
carriage defective
Scanner home position error 2 121 D
The scanner home position sensor
does not detect the off condition during
initialization or copying.
• SIB or scanner motor drive board
defective
• Scanner motor defective
• Harness between SIB and scanner
drive motor disconnected
• Harness between SIB and scanner
drive motor power source
disconnected
• Scanner HP sensor defective
• Harness between SIB and scanner
HP sensor disconnected
• Scanner wire, timing belt, pulley, or
carriage defective
SBU auto adjust error 143 C
One of the following occurred:
When the machine was powered on,
automatic adjustment of the SBU failed.
Automatic white density adjustment
failed when reading standard white
plate.
• Exposure lamp defective
• Lamp stabilizer defective
• Lamp stabilizer connection loose,
disconnected or damaged
• White plate mounting is incorrect or
defective
• Scanner mirror or scanner lens out of
position or dirty
• SBU defective
• BICU (Ri10) defective
• SIB defective
• Harness connections between SIB
and SBU loose, disconnected, or
damaged.
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