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Lexmark CX725

Lexmark CX725

Fuser temperature error service check

  1. Make sure that the printer is placed in a location with the following temperature and humidity:

    • 60°F to 90°F temperature range
    • 8% to 80% relative humidity
  2. If the printer must be placed in a below freezing environment, then do the following:

    1. Remove the fuser, and then allow it to slowly warm above freezing temperature.

    2. Reinstall the fuser, and then turn on the printer.

    3. Increase the timeout value for sleep mode to 114. From the home screen, touch Settings > Device > Power Management > Timeouts > Sleep Mode.

      Note:  114 minutes is the maximum acceptable timeout value.

  3. Make sure the wall outlet where the printer is connected provides >95% of rated voltage when printer is in "Ready State" ( >109 VAC U.S., >218 VAC for HV Geos, >95 VAC for Japan).

    Notes:

    • Do not use this product with extension cords, multioutlet power strips, multioutlet extenders, or UPS devices. The power capacity of these types of accessories can be easily overloaded by a laser printer. This can result in a risk of fire, property damage, or poor printer performance.
    • Power strips and uninterrupted power supplies can cause a low amperage condition to occur within the printer, which in turn may trigger a false fuser error. 
    • Make sure that the printer is plugged into an appropriate rate and properly grounded electrical out let or supported Inline Surge Protector.
  4. Perform a POR.

  5. Make sure that the correct voltage is supplied to the fuser from the power supply. For more information, see the Wiring diagram and LVPS removal.

  6. Make sure that the connections between the controller board and the fuser are properly connected.

  7. Check the fuser for damage, contamination, and improper installation. For more information, see Fuser removal.

Most likely parts to replace

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