Toshiba e-STUDIO2820C Service Handbook page 364

(9) Perform "Automatic initialization of image quality control (05-396)" and make sure it is completed
normally. (Error [CE40] does not appear.) Then perform "Automatic gamma adjustment" ( Chap-
ter 3.7.1 and 3.8.1).
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(10) Clear all "Image quality control abnormal detection counter Y to K display/0 clearing (08-573 to
576)".
(11) Check if any of the springs for supplying power to the transfer belt unit is deformed. Replace the
spring if it is deformed.
[CE50] Temperature/humidity sensor abnormality
Is the connector CN342 on the LGC board or the connector of the temperature/humidity sen-
sor disconnected?
Is the harness between the LGC board and the temperature/humidity sensor disconnected?
YES
NO
1. Replace the temperature/humidity sensor.
2. Replace the LGC board.
[CE60] Drum thermistor Y abnormal
[CE90] Drum thermistor K abnormal
Is the harness between the LGC board and the drawer connector for developer unit discon-
nected?
Is the harness inside of the developer unit and the harness of the drum thermistor Y or K dis-
connected?
Is the connector CN340 on the LGC board, or the connector of the drum thermistor Y or K dis-
connected?
YES
NO
1. Replace the drum thermistor Y or K.
2. Replace the LGC board.
e-STUDIO2820C/2830C/3520C/3530C/4520C
ERROR CODE AND TROUBLESHOOTING
| When an error occurs:
Check and correct it accordingly.
Connect the connector securely. Replace the harness.
Reconnect the connector. Replace the harness.
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