惠普4015显示57.4
Error Description:
A main cooling fan (FM1) error has occurred. Fan operation is verified during device powerup. Fan operation occurs only during powerup or during a print job.
Solution:
1. Turn the device off and then on.
2. Verify that nothing is hindering or blocking the fan.
3. Verify that the fan is connected to connector J509 on the ECU PCA.
4. If the message persists, replace the fan (see Right-side fan on page 128).
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