Ricoh D104 Field Service Manual page 582

6. Troubleshooting
No. Type
- -
6
No. Type
380 C
381 C
- -
No. Type
396 D
580
Details (Symptom, Possible Cause, Troubleshooting Procedures)
SC is issued only if one of followings is satisfied.
• During TD sensor initialization, the output value of the black, magenta, cyan,
or yellow TD sensor is not within the range of the specified value with
SP3238-001 to -004 (default: 2.7V) ± 0.2V.
• The TD sensor output is 0.7 V or more when the Vcnt is 4.3 v.
• The adjusted Vcnt is 4.7 V or less.
• Heat seal not removed from a new developer pack
• TD harness sensor disconnected, loose or defective
• TD sensor defective
• Harness between TD sensor and drawer disconnected, defective
• Different developer density from initial developer density
1. Remove the heat seal from each PCDU.
2. Replace the development unit.
3. Replace the PCDU.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Drum gear position sensor error: K
Drum gear position sensor error: M, C, Y
The machine does not detect a change signal (H
the drum phase adjustment.
• Dirty or defective drum gear position sensor
1. Check the harnesses.
2. Clean or replace the drum gear position sensor.
3. Replace the PCDU.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Drum/Development motor error: K
L or L H) for 2.4 seconds at