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C392A (bizhub C368/C308/C258)
Contents
| Trouble type | C392A: Heating roller temperature sensor contamination (Main of the heating roller) |
| Rank | C |
| Trouble detection condition | When the machine is in standby mode after a predetermined period of time after the warm-up stage is started, detected temperature of the heating roller temperature sensor (TEMS) higher than a given temperature for a given period of time consecutively. |
| Trouble isolation | – |
| Relevant electrical parts | • Fusing unit • Heating roller temperature sensor (TEMS) • MFP board (MFPB) |
Procedure
- Wipe the TEMS clean of dirt if any.<Cleaning procedure>
- Clear away a dirt or a foreign object on the sensor with a cotton swab.
- When a dirt is left even if you cleaned the sensor by above procedure, clear away a dirt or a foreign object on the sensor using a cotton swab dampened with the alcohol. And, wipe off the sensor with a dry cotton swab afterwards.
- Check the TEMS for installed position and proper connector connection.
- Check the connection of the fusing unit.
- Check the fusing unit and MFPB for proper connection and correct or change as necessary.
- Replace the fusing unit. (Part# A161R71888)
- Replace MFPB. (Part# A7PUH02123)
Please search Knowledge Base articles and Bulletins as they may contain relevant information and updated Part information such as Part numbers.
K.3.13.9 (Link to the Field Service Manual)