User Guide

3. If this product was previously serviced, check the connectors J115 and J139) on the DC controller
PCA.
4. If the error persists, replace the fuser.
W = 2, Fuser warm-up failure
1. Reconnect the connector (J50) between the fuser and the DC controller PCA.
2. Turn the product off. Remove the fuser, and then reinstall it.
3. Replace the fuser wire harness.
4. If the error persists, replace the fuser.
W = 3, High fuser temperature 1
1. Remove and then reseat the fuser.
2. Check the paper type setting using the product menus and in the product driver. Make sure that
they match and are correct for the type of paper being used.
3. If this product was previously serviced, check the connector (J50) on the DC controller PCA.
4. If the error persists, replace the fuser.
W = 4, Fuser power supply driving circuit error
1. Remove and then reseat the fuser.
2. If this product was previously serviced, check the connectors J115 and J139) on the DC controller
PCA.
3. If the error persists, replace the fuser.
W = 6, Open fuser, breaking of a heater wire
1. Check the power source. Make sure the power source meets product requirements.
NOTE: If the power source does not meet the power frequency requirement of 43 to 67Hz, the
fuser temperature control does not work properly and causes this error.
2. If this product was previously serviced, check the connector (J60) on the DC controller PCA.
3. If the error persists, replace the low-voltage power supply.
W = 7, Fuser pressure-release mechanism failure
1. Remove and then reseat the fuser. Make sure there is no residual paper in the fuser.
2. Check the fuser pressure-release sensor flag. If it is damaged, replace the fuser.
3. Use the Manual Sensor Test to verify that the fuser pressure-release sensor (SR7) is properly
functioning. If it is not, replace the fuser.
4. Use the fuser pressure-release drive test in the component test to verify that the fuser motor (M2) is
properly functioning. If it is not, replace the fuser motor (M2).
ENWW
Tools for troubleshooting
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