SOURCE: Canon MF4150 Duplex Printing Paper Jams
I have just had the same problem on one of these Canon MF4150 machines.
The manufactures warranty on our machine had expired just one week before this happened so I had to fix this myself.
The problem we had (which is very likely to be the same cause as yours) is when we removed some torn jammed paper, it had somehow pulled off a spring from inside the machine. The spring was linked to the paper jam sensor.
It does involve a LOT of work to fix it, and unless you are very 'techy' it may be quite a difficult task to do this for the 'average' person.
I had to completely disassemble the machine:
Take off the front first (lift up the cover and there is 2 screws at the front and 2 clips on the bottom of the machine)
Then remove the 2sides and finally the top (screws should be easy to see, to get the sides off, un-clip along the front edges and gently move them outwards and slide them backwards to release the clips on the back) being careful with the wires going to the scanner part).
Then look for the fuser unit which is near the top at the back, there is a black rounded cover over the fuser. To remove the cover, look for 2 small clips one at each side and unclip the cover and gently lift upwards.
Under the cover on the left side you will see a small plastic rod which goes from the left side to a small tab in the middle, if you look about half way along that rod you should see a tiny spring, make sure this is clipped on properly and that you are able to rotate the rod and it should spring back to the proper position when you let go.
Once this is done, put it all back together again and it should work fine.
I'm sure a lot of other people probably have this same problem too so I hope this helps someone.
SOURCE: printing to 4 x 6 paper
Hello oyam26,
For any paper mismatch issue, first thing you do is try to set the paper type to plain. This will fix the issue in most of the cases.
gud luck
SOURCE: Canon MP 560. Is there any way to set this printer
The above is the hard way for this printer.
The easy way is to go to the Quality & Media Tab. There you can click the Gray Scale box on .
This works for Mac, and comes out B& W.
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