This error points to the Fuser Fan see below for more details
Error 57.XX points to a fan problem in general
The printer detects that a fan motor
1 = cartridge fan (FM 3)
3 = low-voltage power supply fan (FM5)
5 = face-up delivery paper path fans (FM1 or FM6)
6 = paper-path fan (FM2)
7 = fuser fan (FM4)
9 = ozone/exhaust fan (FM7)
1 - Turn the printer off, and then turn the printer on again to clear the error.
2 - Check the indicated fan, and check for correct movement of the blades and motor.
3 - Check the connectors that apply to theX error:
1: J3078 and J820 on theT driver PCA.
3: J3 on the low-voltage power supply, and J102 on the DC controller PCA.
5: J3079 and J3087 at the fans, intermediate connector J086, and J811 on the T driver PCA.
6: J818 on the T driver PCA.
7: J819 on the T driver PCA.
9: J3089 at the fan, and J823 on the T driver PCA.
4 - Check connector J1 on the low-voltage power supply, J210 and J202 on the high-voltage power supply, J608 and J612 on the P driver PCA, and J806 on the T driver PCA.
5 - Replace the fan if voltage is supplied to it at power on and it fails. See chapter 6.
6 - Replace the T driver PCA. See" T-crg (print cartridge) drive assembly" on page 296.
7 - Replace the DC controller PCA if X = 3 (FM5). See "DC controller" on page 300.
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