Process Control Error Conditions - Ricoh D143 Field Service Manual

6. Troubleshooting

Process Control Error Conditions

Developer Initialization Result
SP-3-014-001 (Developer Initialization Result)
No. Result
Successfully
1
completed
Forced
2
termination
6 Vt error
7 Vcnt error 1
8 Vcnt error 2
9 Vcnt error 3
872
Description
Developer initialization is
successfully completed.
Developer initialization
was forcibly terminated.
Vt is more than 0.7V
when Vcnt is 4.3V.
Vcnt is less than 4.7V
when Vcnt is Vt target
±0.2V.
Vt is more than 0.7V
when Vcnt is 4.3V and
Vcnt is less than 4.7V
when Vcnt is Vt target
±0.2V.
Vcnt is less than 4.7V.
Possible Causes/Action
-
• A cover was opened or the main switch
was turned off during the initialization.
1. Do the developer initialization again when
done in SP mode. Reinstall the engine main
firmware if the result is the same.
2. Turn the main switch off and on when done
at unit replacement.
1. Make sure that the heat seal on the
development unit is not removed.
2. Defective TD sensor
1. Defective TD sensor
2. Vt target settings are not correct.
3. Toner density error
1. Make sure that the heat seal on the
development unit is not removed.
2. Defective TD sensor
1. Make sure that the heat seal on the
development unit is not removed
2. Defective TD sensor
3. Vt target settings are not correct.
4. Toner density error