Ricoh G188 Service Manual page 307

3.1.4 SERVICE CALL TABLES - 3
SC3xx: Image Processing – 1
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
300 D AC charge output error [K]
301 D AC charge output error [M]
302 D AC charge output error [C]
303 D AC charge output error [Y]
The measured voltage is not proper when IOB measures the charge
output for each color.
Disconnected or broken high voltage cable
Defective or not installed PCU
- -
Defective high voltage power supply
1. Check or replace the connectors.
2. Replace the PCU for the affected colour.
3. Replace the high voltage power supply.
No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures)
360 D TD sensor (Vt high) error 1: K
361 D TD sensor (Vt high) error 1: M
362 D TD sensor (Vt high) error 1: C
363 D TD sensor (Vt high) error 1: Y
The Vt value of the black, magenta, cyan, or yellow TD sensor
exceeds the specified value (default: 4.7V) with SP3020-002 for
twenty counts.
- -
The [Vt - Vtref] value of the black, magenta, cyan, or yellow TD
sensor exceeds the specified value (default: 5.0V) with
SP3020-001.
SM Appendix
Service Call Conditions
3-11 G188/G189