Troubleshooting Guide
D117/D118 6-84 SM
Test pattern check Possible cause/Countermeasure
Do SP2-111-001 or -002.
After Executing SP2-111-001
 Result: "1" in SP2-194-007
 Result: "2" or "3" (Line pattern detection failure) in SP2-194-010, -011, -012, -013
Test pattern check Possible cause/Countermeasure
White image, Abnormal image,
Low density
 Defective laser optics housing unit shutter
 Defective image processing unit
 Low density of test pattern
 Defective BICU
1. Replace the shutter motor.
2. Replace the high voltage power supply unit.
3. Do the forced process control (SP3-011-001) or
supply some toner (SP3-030-xxx).
4. Replace the BICU.
Normal image, but with color
registration errors
 Defective ID sensor shutter
 Defective ID sensor
 Defective BICU
1. Replace the ID sensor shutter solenoid.
2. Replace the ID sensor.
3. Replace the BICU.
After Executing SP2-111-001
 Result: "1" in SP2-194-007
 Result: "5" (Out of adjustable range) in SP2-194-010, -011, -012
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