Question about Office Equipment & Supplies
The display is saying 'call for service' and the current fault code is U4-1. I have check for paper jam, and cannot find any. What else could U4-1 mean?
Reset the fault code first as follow:
Enter in diagnostic mode
Enter 20-3 and press 0 then press start again .
Hope it will solve if not done check the heater lamp continuty if found fault replace same.
Posted on Sep 20, 2008
U4-1 is a resetable fault code.Switch off press and hold 0 and switch On,Touch Routines tab, Enter 20 and start print,3 and start print,0 start print.Test the copier. But the problem is why has the copier produced this code.It could be that the thermister (which monitors the heat) and should be in contact, and riding ontop of the Heat Roller, has become disloged sending the copier into overheat condition.So first Switch Off the power to the copier, then remove the Web Assy 2 bolts on top of the fuser.Look on the R/H side of the Heat Roller the Thermister should be resting on the heat roller clipped under the metal bracket.If OK the next thing to check is the Over Heat Fuse in the center of the metal bracket (Has 3 AC wires connected to it 2 on the left and 1 on the right,pull off the one to the right and test across the fuse for continuity.If ok,It could be the Fuser heat rod has blown. regards exxerox
Posted on Jan 18, 2011
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Posted on Jan 02, 2017
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