Canon MF4660PL Always says there is a paper jam and I have to open and close cover approx 10 times to get it to reset. Canon say it is probably a sensor problem. Can this be fixed easily and at what cost? Can I take it to local shop or do I need an authorised centre. It is out of warranty.

SOURCE: paper jam light constantly on.

The suggestion with the heavy stock paper worked. I used a vanilla folder but this was not heavy enough so I simply folded it in half. I had the problem where it would feed 1 sheet of paper in the auto sheet feeder upon starting the printer up. This is unusual in itself. The single sheet of paper would go through normally. But with the vanilla folder, as it was going through, I heard a loud sound like a contraption somewhere was being reset or dislodged or relodged or relocated from some stuck position. After the sound, the green light came on no problem and it all worked. Try something not so heavy like a vanilla folder that has been trimmed down. Then fold it. You might have to hold it up against the black roller wheel to get it to engage the roller wheel when you turn the printer on. Hope this helps.

SOURCE: Paper Jam

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: Canon i9900 blinking three orange / jam

I had the same problem with my i9900 - 3 orange flashes on the the error light (Paper Jam) and yet I could slip a sheet of paper in and it would feed through OK. My problem is that the SPRING on the PAPER SENSOR had come off, leaving the sensor in the where it would be if there was a paper jam.

You have to REMOVE the main cover of the printer to find and fix this problem You have to find all of the release points (look for triangles on the plastic covers) where you insert a small tool/screwdriver to (1) press 1 release each side & remove the 2 silver end panels, (2) press 1 release to remove the control switch & carefully disconnect the two connectors inside. Start with the triangle rlease on the lower front left of the main cover, then 1 on the left side, 3 on the back, 1 on the right side, and finally 1 on the lower front right side and gently lift the whole cover off.

You can then look inside with a flashlight from the top rear just behind the left side paper feed roller and see a small switch which pivots when paper is fed through the printer. Feed a sheet of paper and see if the spring is returning it to the normal (no jam) position. I used a long pair of tweezers to reach inside and slip the spring back into its normal position which is behind the small slot on the far right side of the switch. No pictures, but it should be intuitive where the spring should go. Once reinstalled, the switch will move back to the normal position and your paper jam should be fixed.

This SAME MECHANISM is also used in a number of other Canon i & ip series printers so this general approach to fixing this in other models could be the same - (1) remove the cover, (2) locate the switch, and (3) put the spring back into the correct positiion.

SOURCE: my canon mx310 keeps showing a paper jam alarm and there is no paper jam. how do I fix it?

give this a try

1. Turn off the printer.
2. Remove any paper trays. Inspect them for wrinkled or damaged paper.
3. Also open the back cover of the printer if this model has one.
4. Open any other doors that give access to the printer's paper path and to the toner or ink cartridge.
5. If necessary, remove the toner or ink cartridge. Place it away from light/ sun light to avoid damaging it.
6. If you find a piece of jammed paper, remove it by holding it with both hands and pulling firmly. The goal is to keep the paper from tearing. If several pieces are jammed together, try pulling out the middle piece first to loosen the jam.
7. If the paper does tear, try rotating the roller gears manually to free the paper. Don't force anything, though. Do this step especially if the jam message comes up repeatedly without any obvious paper jam, there may be a small tear of paper inside.
8. Ones the printer is free of paper Replace the toner or ink cartridge and paper trays, close any doors you opened and turn the printer back on.
9. If the printer paper jam message still appears, then there is still some paper in the printer. Reinspect the paper path.
10. see alternative if the problem is still not solved.
    

SOURCE: I had a major paper jam at my printer (Canon,

1. Protect yourself from shock. Disconnect the power cord from the back of the Canon Inkjet Printer. This is an important step when working inside ANY electronic device.
2. Step 2 Unhinge the back access panel of the printer. It seems repetitive to say this, but this door will be in the BACK of the printer.
   
3. Step 3 Look through the opened back panel and look for paper. Remove any and all paper you find jammed there.
   
4. Step 4 Close the back access panel. Make sure that it latches into place and looks the same way that it did before you opened it.
   
5. Step 5 Find the front or top access panel. This is the panel you would lift to change ink cartridges. Open this access panel. If the carriage that holds the ink cartridges moves, then you forgot to unplug the printer, go back and do that now. Look for paper that may be jammed in this area of the printer.
   
6. Step 6 Remove any paper you find jammed here. When pulling from the front there will be resistance from the paper feeder. Pull slowly or the paper will rip and create a more stressful problem.
   
7. Step 7 Close the front access panel. Make sure that it falls or latches back in place. It should look the same way that it did before you opened it.
   
8. Step 8 Plug the printer's power cord into the wall outlet, and attempt to print again. If the printer prints the job, then you have successfully removed the paper jam.