HP LASERJET ENTERPRISE 500 MFP

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Recommended action

57.00.01: Fan motor 1 malfunction

1. Turn the product off and then on. Listen for fan noise at the front lower-left corner of the product. If

no noise is heard, replace the power supply fan (FM1).

2. If this part has been removed or replaced, check the connector (J119) on the DC controller PCA.

3. Measure the voltage between the connectors (J119-1 and J119-3) on the DC controller PCA

immediately after the product power is turned on. If the voltage changes from 0 VDC to

approximately 24 VDC, replace the fan (FM1).

57.00.02: Fan motor 2 malfunction

1. Turn the product off and then on. Listen for fan noise at the front lower-right corner of the product.

If no noise is heard, replace the toner cartridge fan (FM2).

2. If this part has been removed or replace, check the connector (J26) on the toner cartridge fan,

connector (J262) on the high-voltage power supply (lower), and the connector (J114) on the DC

controller.

3. Measure the voltage between the connectors (J262-1 and J262-3) on the high-voltage power

supply (lower) immediately after the product power is turned on. If the voltage changes from 0

VDC to approximately 24 VDC, replace the fan (FM2).

57.00.03: Fan motor 3 malfunction

1. Turn the product off and then on. Listen for fan noise at the lower back-center of the product. If no

noise is heard, replace the delivery fan (FM3).

2. If this part has been removed or replace, check the connector on the intermediate connect board.

3. Measure the voltage between the connectors (J262-1 and J262-3) on the high-voltage power

supply (lower) immediately after the product power is turned on. If the voltage changes from 0

VDC to approximately 24 VDC, replace the fan (FM3).

57.00.04: Fan motor 4 malfunction