How do I reset error code u4 using the control panel?

SOURCE: Xerox Copier Machine - Error U4

The fuser is not warming up.
On that machine under the web there is a thermal fuse on a white plastic mount, it has one screw through it.
It is most likely blown. Possibly caused by a jammed paper in the fuser.
That fusable link needs to be replaced.

SOURCE: my machine shows a U4 code

U4 code refers to a fuser heat failure, you'll probable find the fuser roll is stone cold .Possible cause is open circuit heater or overheat thermostat popped.Either way you will need to pull out the fuser unit and check continuity of the components

CheckitRight

• 1363 Answers
• Posted on Oct 06, 2008

SOURCE: U4 error code - Xerox 5328 copier

U4-2 Low fuser temp problem U4-3 High fuser temp problem U4-4 High fuser temp problem U4-6 High fuser temp problem

replace thermistor in fuser unit

SOURCE: Xerox WC Pro 35 - Error 14-563

this code means your scanner has failed to setup correctly. this could be a problem that you would need a qualified tech to service the copier. there is nothing that you can do after you power off and power on (popo) the copier. it could be voltage, pwb board, or a binding scanner assembly.

SOURCE: WORKCENTRE PRO 420 U9 CODE

Hello sir; The U-9 code means the main control unit/switch board problem, replace it.