Control panel message Description Recommended action
57.03 ERROR The print-cartridge fan (FN102) is not
functioning. See
Figure 7-13 Rear-side fans.
1 Verify that the connector J78 on the dc
controller is firmly seated.
2 Listen for the fan to operate while the
MFP is initializing.
3 If the fan does not operate during the
initialization sequence, replace it. See
Print-cartridge fan (FN102).
57.04 ERROR The main fan (FN101) is not functioning.
See
Figure 7-12 Front-side fans.
1 Verify that connector J64 on the dc
controller is firmly seated.
2 Listen for the fan to operate while the
MFP is initializing.
3 If the fan does not operate during the
initialization sequence, replace it. See
Main fan (FN101) and reversing-unit
fan (FN103).
57.05 ERROR The duplexing-unit fan (FN107) is not
functioning.
1 Verify that the connector J44 on the dc
controller is firmly seated.
2 Listen for the fan to operate while the
MFP is initializing.
3 If the fan does not operate during the
initialization sequence, replace the
duplex-printing unit.
57.07 ERROR The reversing-unit fan (FN103) is not
functioning. See
Figure 7-12 Front-side fans.
1 Verify that the connector J65 on the dc
controller is firmly seated.
2 Listen for the fan to operate while the
MFP is initializing.
3 If the fan does not operate during the
initialization sequence, replace it. See
Main fan (FN101) and reversing-unit
fan (FN103)
58.XX ERROR To continue turn off then
on
A memory error has been detected.
■ 58.2 = Air temperature sensor (TH3)
■ 58.3 = DC controller PCA
■ 58.4 = Engine power supply
Turn the MFP off, and then turn the MFP on.
For 58.2 errors:
1 Reconnect the connector J63 on the
engine power supply. The air
temperature sensor is the thermistor
(TH3) that is mounted across the main
cooling fan (FN101). See
Figure 7-12
Front-side fans.
2 Replace the air-temperature sensor.
See
Main fan (FN101) and reversing-
unit fan (FN103).
3 Replace the engine power supply. See
Engine power supply.
Table 7-2 Control-panel messages (continued)
328 7 Troubleshooting
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