A transparency was put in the copier & melted, now the copies is displaying a u4 error. what can I do?
I have a U4 error that is coming up when the unit is turned on, any suggestions or solutions to my problem???
- If you need clarification, ask it in the comment box above.
- Better answers use proper spelling and grammar.
- Provide details, support with references or personal experience.
Tell us some more! Your answer needs to include more details to help people.You can't post answers that contain an email address.Please enter a valid email address.The email address entered is already associated to an account.Login to postPlease use English characters only.
Tip: The max point reward for answering a question is 15.
1. Check for paper on the fuser. Y remove paper N proceed to step 2 2. Check the installation of the fuser assembly, make sure it is securely installed. Y reinstall fuser N proceed to step 3 3. Remove the fuser. Check the conductivity of the contact points of the thermostat, are the contact points connected N replace the fuser
turn on power while holding down "0", press "stop/clear" and wait 30 seconds for optics to finish initializing, then enter "401" then "print", shut off machine, wait 10 seconds and turn back on. code should now be cleared.
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.
Most likely replace the fuser.
And be sure you use transparencies marked for copiers only.
The U4 is an over heat because the tranaparency stuck between the heat roll and the thermistor. Causing the fuser to stay on and blow the overheat.