Question about Office Equipment & Supplies
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Posted on Jan 02, 2017
SOURCE: Canon Pc720 Copier Paper Jam
The problem with the paper jam (but not feeding) is that a small
piece of plastic that holds one end of a spring the causes the feed
gears to push against the powered gear on the back side of the toner
cartridge breaks off. So the unit does not feed (no pickup rollers
etc) and it thinks there is a paper jam (no moving paper). Orienting
the front as the side you work at, the back being the back, the
feed being the side the paper goes into and the output being the
side the finished copy comes out, open the unit. Looking into it
from the output side almost to the input on the bottom notice the
small hairlike things sticking up. Move to the left (back of the
machine) and see a few white gears all hooked into this gray metal
housing that moves up and down about 1/2 inch (It pivots). At the
top input side of this metal you will see a part of the metal that
stick up and has a small slot in it. the spring used to hook onto
this and the other end hooked to a small piece of plastic down and
more to the input side a bit, onto the upper input side of the white
plastic part that houses a shaft to a roller (fat little spring
about 1 inch long). the plastic part breaks off and you usually
can't see that a part was even there. The spring will still be in
the area. If you are handy, you can figure out how to fix it. I got
a longer spring (same strength) bent the metal toward the back 1/4"
and ran the new spring from there to a 1/16 hole I drilled in the
plastic side next to the circuit board (down low and back). I shaped
the end of the spring (where I drilled)to keep it more inside and
not hit anything. Works fine.
Posted on Mar 30, 2008
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.
Posted on Sep 09, 2008
SOURCE: Copier canon mf4150 says it
1. First, clean your printer. Get some spray-n-wipe cleaner and a
clean cloth and clean the entire inside of the printer. Also ensure
your paper isn't dirty. Now print a test page. Does the symptom
2. Remove all jammed paper. Check the paper tray first. Look closely at the paper rollers nearest where the paper exits the printer; this is a common source of jams. If you’re trying to print labels, they will often jam just before exiting the printer.
3. Try to print a test page. Does the printer still jam? If you can find no source of the jamming, check the printer's message display window and refer to your user’s manual to look up the printer error code.
Posted on Sep 16, 2008
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