Ricoh G188 Service Manual page 308

Service Call Conditions
No. Type
1.
2.
3.
No. Type
364 D TD sensor (Vt low) error 2: K
365 D TD sensor (Vt low) error 2: M
366 D TD sensor (Vt low) error 2: C
367 D TD sensor (Vt low) error 2: Y
The Vt value of the black, magenta, cyan, or yellow TD sensor is below
the specified value with SP3020-004 (default: 0.5V) for 10 counts.
- -
1.
2.
3.
No. Type
372 D TD sensor adjustment error: K
G188/G189
Details (Symptom, Possible Cause, Troubleshooting Procedures)
Black, magenta, cyan, or yellow TD sensor disconnected
Harness between TD sensor and PCU defective
Defective TD sensor.
Low toner density
Check the black, magenta, cyan, or yellow TD sensor connector
and harness between the TD sensor and PCU for damage.
Check the drawer connector.
Replace the defective PCU.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
TD sensor harness disconnected, loose, defective
A drawer connector disconnected, loose, defective
TD sensor defective
Too much toner density
Check the black, magenta, cyan, or yellow TD sensor connector
and harness between the TD sensor and PCU for damage.
Check the drawer connector.
Replace the defective PCU.
Details (Symptom, Possible Cause, Troubleshooting Procedures)
3-12 SM Appendix