C3722 (bizhub C554/C454)
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Contents
| Trouble type | Fusing abnormally high temperature detection (Edge of the heating side) |
| Trouble code | C3722 |
| Rank | A |
| Detection timing | Detected temperature of the heating roller thermistor/1 (TH1) goes beyond a given temperature for a given period of time consecutively. |
| Trouble isolation | – |
| Relevant electrical parts | -Fusing unit -Heating roller thermistor/1 (TH1) -IH power supply (IHPU) (bizhub C554 only) -Printer control board (PRCB) |
(2)Procedure
| Step | Action | Control signal | Location of electrical components |
| 1 | Check the fusing unit for correct installation (whether it is secured in position). | – | – |
| 2 | Check the open/close operation of the right door. | – | – |
| 3 | Check the fusing unit, IHPU (bizhub C554 only) and PRCB for proper connection and correct or change as necessary. | – | – |
| 4 | Replace the fusing unit (bizhub C554 Part# A4FJR70344 / bizhub C454 Part# A2XKR71044) | – | – |
| 5 | Replace IHPU (bizhub C554 only) (Part# A61DM40A00) | – | – |
| 6 | Replace PRCB (C554 Part# A2XKH00104 / C454 A4FJH00104) | – | – |
- Link to the layout drawings for related parts by each trouble code (S.81. C3722)
- Link to the layout drawings for related parts by each trouble code (S.82. C3725, C3825)
- Link to the layout drawings for related parts by each trouble code (S.83. C3726)
K3.8.6 (Link to the Field Service Manual)