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C3926 (bizhub 554e/454e)
Contents
| Trouble type | Fusing sensor wire breaks detection (Middle of the heating roller) |
| Trouble code | C3926 |
| Rank | A |
| Detection timing | • After a predetermined period of time after the warm-up stage is started, the heating roller thermistor/2 (TH2) voltage does not decrease by predetermined steps (temperature rise) within a predetermined time. • When a temperature detected by the heating roller thermister/1 (TH1) is compared with the temperature detected by the heating roller thermister/2 (TH2) to find out that the difference exceeded the predetermined temperature. |
| Trouble isolation | – |
| Relevant electrical parts | • Fusing unit • Heating roller thermistor/1 (TH1) • 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 upper right door. | – | – |
| 3 | Check the fusing unit and PRCB for proper connection and correct or change as necessary. | – | – |
| 4 | Replace the fusing unit (bizhub 554e/bizhub 454e) Fusing Unit (Part# 545e A2XKR71022 454e A4FJR70322) | – | – |
| 5 | Replace PRCBPRCB (Part# 554e A61DH00101 454e A61EH00101) | – | – |
- Link to the layout drawings for related parts by each trouble code (S.75. C3922)
- Link to the layout drawings for related parts by each trouble code (S.76. C3925)
- Link to the layout drawings for related parts by each trouble code (S.77. C3926)
Document Information ID D0001134379 Revise ID R000003
Please search Knowledge Base articles and Bulletins as they may contain relevant information and updated Part information such as Part numbers.
K.3.8.9 (Link to the Field Service Manual)