Ricoh Aficio MP C2050 Service Manual

Troubleshooting Guide
SM Appendix 6-7 D037/D038/D040/D041
Appendix:
Trouble-
shooting
Guide
Test pattern check Possible cause/Countermeasure
2. Replace the laser unit.
3. Replace the BCU.
Others  Skew correction upper limit error
 Defective BCU
 Defective laser unit
1. Replace the BCU.
2. Replace the laser unit.
After Executing SP2-111-001
 Result: "0" in SP2-194-007
 Result: No color registration errors in SP2-194-010, -011, -012
Test pattern check Possible cause/Countermeasure
The main scan registration of K is
shifted.
 Abnormal SP setting value of main scan: K
Adjust the value with SP2-101-001.
The main scan length of K is
shifted.
 Abnormal SP setting value of main scan length
detection: K
Adjust the value with SP2-102-001 and -003.
Note:
The setting value of these SPs should be same.
After Executing SP2-111-001
 Result: "0" in SP2-194-007
 Result: Color registration errors in SP2-194-010, -011, -012
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 (SP3-015-xxx).
The main scan registration is  Defective ID sensor at center

Ricoh Aficio MP C2050 Specifications