The drum motor is not rotating due a xerographic module damage or fuser module. Check all is not tighted
How to solves the problems
This is a black drum motor drive failure.
whats the solutions
I replaced the drum unite but issue still coming
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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: I have an IR-3300 Model xerox machine. It was
The two problems may not be related. Adding toner should not under most circumstances cause copies to become light, unless the toner you are using is of a poor quality - I hope it is a Canon cartridge or quality generic. It sounds as though your fixing film or drum unit may need replacing, or perhaps you need to perform a install procedure. As the 'install - toner - start' option is free, try it first:
First press the head key and then the number '2' and '8' keys at the same time then press the head key again. This will take you into service mode - select 'copier' then 'install' then 'toner' then 'start'. This will run throught a cycle that takes a little while, I think about 599 seconds (sorry for been so accurate but unhelpful but that's what I remember from the display - never converted into minutes but you're welcome to).
But if you are having blurry or even dirty or light copies it may be the fixing film. When the copies are printed, immediately check if you can rub off the toner at all by rubbing the print with your fingers - if so this indicates that the fixing unit is not hot enough or there is not enough pressure - check that the fuser is in properly and that the jam release lever is not engaged.
Lastly, it could be your drum unit that is faulty or worn. Totest this you will need to try and stop the machine in the middle of printing before it reaches the fuser - open the front cover and latch down the transport bed with the green handle - remove the paper gently so as not to disturb the ink in any way and observe the image quality - if it is displaying the exact same symptoms then it is not your fuser and is probably the drum unit or dodgy toner - most likely the drum. However, if the image is fine, then it most definetely is your fuser film (and or perhaps the cleaning roller that cleans the film).
Good luck
SOURCE: How do I access the diagnostic menu for the Xerox
You can access the diagnostic menu by holding the back arrow key and the "i" information key. What you do is press them before the machine is turned on. you can let them go after saying entering diagnostic menu.
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