Sc100: Scanning System - Ricoh MT-C1 Service Manual

B140/B246 SERIES SERVICE MODE

SC100: Scanning System

SC No.
101 D Exposure Lamp Error
At trigger on, the lamp was not
detected on.
120 D Scanner home position error 1
The scanner HP sensor does not
detect the on condition during
initialization or copying.
121 D Scanner home position error 2
The scanner HP sensor does not
detect the off condition during
initialization or copying.
122 D Scanner home position error 3
The scanner home position sensor
does not detect the on condition
during original scanning.
Symptom
4-40
Possible Cause
• 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
• 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.
• 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.
• 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
15 February 2006