Question about Canon PC-940 Black and White Copier

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My canon pc-940 copier wont turn on

I've checked the plugs and open and shut the doors, checked for paper jams.... any ideas?

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There is a actuator switch near in the by pass unit,try to push that actuator or check the switch if there is a contact?if still not try to check the fuse at the back of the machine

Posted on Dec 10, 2008

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My PC 745 comes up with an error code of a paper jam but I cannot find any jammed paper. Any suggestions.


completely remove the paper cassette and look for A SMALL PIECE OF PAPER stuck inside the machine in the paper path. Also use a flashlight to check for tiny bits of paper in the exit section of the machine where the fuser (hot) rollers are.

Dec 16, 2010 | Canon PC-940 Black and White Copier

1 Answer

I had a paper jam. Got the paper out, but now


Some printers won't reset the jam condition until you open a specific door or cover -- even if you've gotten the jam out, they think it's still there until you open that cover. Try opening and closing all of the machines doors and access points, and even pull out the paper tray and push it back in.

If the jam condition still isn't cleared, turn the machine off and back on with the main power switch.

Jul 05, 2010 | Canon PC-940 Black and White Copier

1 Answer

Copier keeps telling us there is paper jam, we have looked where screen shows jam and find nothing. We have taken out the paper tray, still don't find even a tiny scrap of paper anywhere.


There are several possibilities. After you inspect for the Jam and close the drawer, does the copier come to ready? Have you checked the behind the doors on the right side. If the copier comes to ready and you press the start button does the copier jam right away. If so check the dial on the paper drawer and be sure its set to the right size paper. If its not the copier will jam, right away. It is important with a Canon to check all areas and open both the paper drawer and the right side doors when checking for jam, if the right sequence is not followed in checking for jams the jam may not clear. If still Jammed you might take some canned air open the right side door and blow out the paper feed area, a sensor may be blocked or dusty. If all else fails turn the machine off and un-plug it from the wall, let it set a few minutes and plug it in and try it again.

May 20, 2010 | Canon imageRUNNER 2000 Copier

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Copier power outage while in operation caused paper jam and shut operation down. Service icon activated and will not go out.


Hello sir; Try to do a reset, open clamshell and remove top front cover, close clamshell and reconnect cable from cover to DC controller. turn on power and then short pins JP101 & JP102, the display will show out "F" release the short, then put everything back turn on the power.

Oct 20, 2009 | Canon PC-940 Black and White Copier

1 Answer

Paper jammed light stays on after removing jammed paper.


Make sure you have opened all doors and pulled out all paper trays. After turning the copier on and off if jam light stays lite then you will most likely have a sensor problem (fell out or broken)

Oct 18, 2009 | Canon PC-940 Black and White Copier

1 Answer

Says there is a paper jam but there isn't


if the machine goes straight into jam code once switched on, its usually a good sign a sensor has broken or it has fallen out.
canon tech

Mar 26, 2009 | Canon PC-940 Black and White Copier

1 Answer

Display says rec.paper jam,slide platen left


in service mode manually recheck all paper transport sensors...

Mar 17, 2009 | Canon Printers & Copiers

1 Answer

Canon pc940 won't turn on


power fuse blown on power supply board ,replace it.

Dec 10, 2008 | Canon PC-940 Black and White Copier

1 Answer

PAPER JAM LIGHT ON DO NOT COPY


make sure that there is no sensor out of place or there maybe a small piece of paper blocking one of them.
open the machine and check along the paper path

Jun 07, 2008 | Canon PC-940 Black and White Copier

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