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Xerox 420 pro - U4 error
Hi all. I have this xerox 420 pro machine wich came with an U4
error. I reset it and it worked well for a couple of days. After that,
the copier was moved and after aprox 5 copies, i showed U4 again. U4-1
to be exact. I'm not familiar with this type of machine so any advice
would be really usefull. I suspect the thermal fuse, according to the
manual. But i don't know where to find it. If that is the problem, can
the fuse be ordered by itself or do i need a new fuser?
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
SOURCE: Xerox WC Pro 423 fault code U4-6 & U4-4
Hello sir; The U-4 code all are fuser problem, there haave noway to fix it the only way is replace the fuser unit
SOURCE: WORKCENTRE PRO 420 U9 CODE
Hello sir; The U-9 code means the main control unit/switch board problem, replace it.
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