SERVICE CALL CONDITIONS
B089/B093 7-2 SM
7.1.2 SC CODE DESCRIPTIONS
Code No. Symptom Possible Cause
Exposure lamp error 101 B
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.
• Scanner drive motor defective
• Scanner motor defective
• Harness between SBCU and
scanner drive motor disconnected
• Harness between SBCU and
scanner drive motor power source
disconnected
• Scanner HP sensor defective
• Harness between SBCU 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.
• SIB or scanner drive motor defective
• Scanner motor defective
• Harness between SBCU and
scanner drive motor disconnected
• Harness between SBCU and
scanner drive motor power source
disconnected
• Scanner HP sensor defective
• Harness between SBCU and HP
sensor disconnected
• Scanner wire, timing belt, pulley, or
carriage defective
Scanner HP Sensor – Error 1 122 B
The HP sensor remains on while the
carriage is returning to the home
position.
• SBCU, scanner motor drive board
defective
• Scanner motor defective
• Harness between the SBCU,
scanner motor drive board and
scanner motor disconnected
• HP sensor defective
• Harness between SBCU and HP
sensor disconnected.
• Scanner wire, timing belt, pulley, or
carriage installation incorrect
Scanner HP sensor – Error 2 123 B
The HP sensor does not switch on after
the carriage has returned to the home
position.
• SBCU, scanner motor drive board
defective
• Scanner motor defective
• Harness between the SBCU,
scanner motor drive board and
scanner motor disconnected
• HP sensor defective
• Harness between SBCU and HP
sensor disconnected.
• Scanner wire, timing belt, pulley, or
carriage installation incorrect
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