Question about Xerox 212 Laser Printer
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Posted on Jan 02, 2017
SOURCE: Xerox Copier 214
A U4 is a fuser overtemperature.
You can hold down the "0" while powering the machine on. That will enter the machine into diagnnostics.
Next enter code 401, and press start, See of that clears the problem.
If it does. Remove the fiser and clean the buildup off the thermistor.
If it doesnt you will most likely have to replace the fuser.
Posted on Jan 29, 2008
A U-4 code mean the machine did not reach to temperature.
On this machine check to see if the side door is completely closed.
This door also has some to close with a circuit board on the side.
Check to see on the side door if the small flat metal springs are aligned and not bent, with the power cord disconnected. If these metal springs are out of place a short can occur. Be very careful in this area. If you are not sure what you are doing do not try to service this area of the machine.
One other thing, if the machine has been stored in a very cold place, brining the machine to a room temperature will take about 2 hours for the machine's circuit boards just to warm up.
Usually on this problem, it may be a combination of problems. It means a new fuser assembly, or main circuit board. Not easy to get to, it is in the middle of the machine. Everything has to be taken apart without breaking other components.
Be very extra careful if you are doing this work yourself. This is why you should place a service call for a Xerox service rep to do the repair.
Posted on Oct 17, 2009
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