Ricoh MP C307 - Page 509

Troubleshooting Guide
503
Troubleshooting Guide
Line Position Adjustment
When there are color registration errors on the output, do the line position adjustment as follows.
Test
1. Do SP2-111-003 (Mode c: rough adjustment).
2. Use SP2-194-007 to check if the result of the line position adjustment is correct (0: Completed successfully,
1: Not completed). If the result is "1", refer to ‘Countermeasure list for color registration errors’.
3. Do SP2-111-001 (Mode a: fine adjustment twice).
4. Use SP2-194-007 to check if the result of the line position adjustment is correct (0: Completed successfully,
1: Not completed). If the result is "1", refer to ‘Countermeasure list for color registration errors’.
5. Put some A4/LT paper on the bypass tray.
• When you print a test pattern, use the bypass tray to feed the paper.
6. Print out test pattern "7" with SP2-109-003.
7. Check the printed output with a loupe.
8. If there are no color registration errors on the output, the line position adjustment is correctly done. If not,
refer to the countermeasure list for color registration errors.
Countermeasure List for Color Registration Errors
After Executing SP2-111-003
• Result: "1" in SP2-194-007
• Result: "2" or "3" (Line pattern detection failure) in SP2-194-010, -011, -012
Test pattern check Possible cause/Countermeasure
White image, Abnormal image, Low
density
• Defective image processing unit
• Low density of test pattern
• Defective BiCU
1. Replace the high voltage power supply unit.
2. Do the forced process control (SP3-011-001) or supply some toner
(SP3-030-xxx).
3. 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.