Ricoh Aficio MP C305SP Field Service Manual page 709

Test pattern check
The main scan registration is shifted
by more than ±0.66 mm, but only at
the central area of the image on the
output.
The skew for M, C, Y, K is more than
±0.75 mm.
Others
After Executing SP2-111-003
• Result: "1" in SP2-194-007
• Result: "0" in SP2-194-010, -011, -012, -013
Test pattern check
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
Possible cause/Countermeasure
• 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.
• Defective PCDU
• Defective laser optics housing unit
• Defective BICU
1. Perform the color skew adjustment (
2. Reinstall or replace the PCDU.
3. Replace the laser optics housing unit.
4. Replace the BICU.
• Skew correction upper limit error
• Defective BICU
• Defective laser optics housing unit
1. Perform the color skew adjustment (
2. Replace the BICU.
3. Replace the laser optics housing unit.
Possible cause/Countermeasure
Do SP2-111-001 or -002.
Troubleshooting Guide
p.159).
p.159).
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