B140 SERIES AND G126 SERVICE MODE
B064 Series/B140 Series/G126 4-38 SM
4.3.3 B140 SERIES AND G126 SC CODE DESCRIPTIONS
Important
• If a problem concerns electrical circuit boards, always disconnect then reconnect
the connectors before replacing the PCBs.
• If a motor lock error occurs, first check the mechanical load before replacing
motors or sensors.
• When a Level “A” or “B” SC occurs while in an SP mode, the display does not
display the SC number. If this occurs, check the SC number after leaving the SP
mode.
• The machine reboots automatically when the machine issues a Level “D” SC
code. This is done for Level “D” SC codes only. (4.3.2)
SC100: Scanning System
SC No. Symptom Possible Cause
Exposure Lamp Error 101 D
At trigger on, the lamp was not
detected on.
• Exposure lamp defective
• Lamp regulator defective
• Lamp regulator harness damaged,
disconnected
• Dirty standard white plate
• Scanner mirror dirty or out of position
• Lens dirty, out of position
• SBU board defective
Scanner home position error 1 120 D
The scanner HP sensor does not
detect the on condition during
initialization or copying.
• BCU, SDRB (Scanner Driver Board)
defective
• Scanner motor defective
• Harness between BCU, SDRB, scanner
motor disconnected.
• Scanner HP sensor defective.
• Harness between scanner HP sensor
and BCU disconnected.
• Scanner wire, timing belt, pulley, carriage
installed incorrectly.
Scanner home position error 2 121 D
The scanner HP sensor does not
detect the off condition during
initialization or copying.
• BCU, SDRB (Scanner Driver Board)
defective
• Scanner motor defective
• Harness between BCU, SDRB, scanner
motor disconnected
• Scanner HP sensor defective
• Harness between scanner HP sensor
and BCU disconnected
• Scanner wire, timing belt, pulley, carriage
installed incorrectly.
Rev. 05/2005
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