Ricoh D117 - Page 444

Troubleshooting Guide
SM 6-83 D117/D118
Troubleshooti
ng
Test pattern check Possible cause/Countermeasure
The sub scan registrations of M,
C, Y, K are shifted by more than
±20.
 Defective image transfer belt
 Defective drive units
 Defective BICU
1. Replace the image transfer belt.
2. Replace the drum motor.
3. Replace the BICU.
The main scan registration is
shifted by more than ±0.66 mm,
but only at the central area of the
image on the output.
 Defective ID sensor at center
 Deformed center area on the image transfer belt
 Defective BICU
1. Replace the ID sensor.
2. Replace the image transfer belt.
3. Replace the BICU.
The skew for M, C, Y, K is more
than ±0.75 mm.
 Defective PCDU
 Defective laser optics housing unit
 Defective BICU
1. Perform the color skew adjustment (
p.4-3).
2. Reinstall or replace the PCDU.
3. Replace the laser optics housing unit.
4. Replace the BICU.
Others
 Skew correction upper limit error
 Defective BICU
 Defective laser optics housing unit
1. Perform the color skew adjustment (
p.4-3).
2. Replace the BICU.
3. Replace the laser optics housing unit.
After Executing SP2-111-003
 Result: "1" in SP2-194-007
 Result: "0" in SP2-194-010, -011, -012, -013