Ricoh D117 - Page 447

Troubleshooting Guide
D117/D118 6-86 SM
Test pattern check Possible cause/Countermeasure
Others  Skew correction upper limit error
 Defective BICU
 Defective laser optics housing unit
1. Replace the BICU.
2. Perform the color skew adjustment (
p.4-3).
3. Replace the laser optics housing unit.
After Executing SP2-111-001
 Result: "0" in SP2-194-007
 Result: Color registration errors in SP2-194-010, -011, -012, -013
Test pattern check Possible cause/Countermeasure
Low image density on the output  Low pattern density
Do the forced process control (SP3-011-001) or
supply some toner (SP3-030-xxx).
The main scan registration is
shifted, 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 main scan registrations of M,
C, Y, K are shifted.
 Defective laser optics housing unit
 Defective ID sensor
 Defective BICU
 Incorrect SP value
1. Perform the color skew adjustment (
p.4-3).
2. Replace the laser optics housing unit.
3. Replace the ID sensor.
4. Replace the BICU.
5. Adjust the value with SP2-182-004 to -021.