A 940 paper feed problem

Printers have rollers that grab and feed the paper. They can get dirty over a period of time, or lose some of their "stickiness". Sometimes they're easily accessible, sometimes not, depending on the printer. They can be cleaned with alcohol and q-tip or cloth. The weight of the paper is probably causing just enough resistance to make the printer think there's a jam, but there could also be a problem with the mechanics of the sensor assembly, or a fragment of paper jammed up somewhere. Sometimes you can get it working without taking the machine apart, and sometimes you can't. Make sure you don't void any warranties, of course, but with some investigation, you might get lucky. You've probably done most of what I suggested, but you might take one more look. Good luck!

call to professional

"paper won't feed properly- feeds at angle and jams. Printer indicates that it is out of paper."

I am having the same trouble, what was the solution?

Paper feed roller
cleaning
When paper does not feed
properly.
To clean the paper feed
Machine button

Normal 0 I suggest you get a sheet of Card Stock (Heavy paper) and place it in the feed way. Then press the print button applying a slight amount of pressure on the Card Stock so it will feed through the printer. The reason for this is in some cases I have been able to clear the paper track of debris that was deposited there over time.
Worth a try, as I have fixed a number of printers this way, saving costly repairs.
Hope this helps. Bud

Normal 0 I suggest you get a sheet of Card Stock (Heavy paper) and place it in the feed way. Then press the print button applying a slight amount of pressure on the Card Stock so it will feed through the printer. The reason for this is in some cases I have been able to clear the paper track of debris that was deposited there over time.
Worth a try, as I have fixed a number of printers this way, saving costly repairs.
Hope this helps. Bud

Normal 0 I suggest you get a sheet of Card Stock (Heavy paper) and place it in the feed way. Then press the print button applying a slight amount of pressure on the Card Stock so it will feed through the printer. The reason for this, is in some cases I have been able to clear the paper track of debris that was deposited there over time.
Worth a try, as I have fixed a number of printers this way, saving costly repairs.
Hope this helps. Bud

Normal 0 I suggest you get a sheet of Card Stock (Heavy paper) and place it in the feed way. Then press the print button applying a slight amount of pressure on the Card Stock so it will feed through the printer. The reason for this is in some cases I have been able to clear the paper track of debris that was deposited there over time.
Worth a try, as I have fixed a number of printers this way, saving costly repairs.
Hope this helps. Bud

I would check to see if the paper is even making it out of the tray. A lot of times, the feed rollers can get dirty, and the printer will display a jam if it doesn't feed in time. If the feed rollers look ok, then I would check and see if the feed rollers are even turning. Sometimes the motor that turns the feed rollers wears out.

This machine problem can be very involved.
A paper jam as described can be in any locations of the copier.
First of all when the toner-developer falls on the base of the paper feeder, it can contanimate all paper feed shafts and even sensors, and plug connections.
Worn feed rolls can cause the machine to jam. Clean the rollers and see if it corrects the problem.
A bent paper tray can cause the copy to skew, causing jams.
Sometimes the plasic paper path baffles are warped leaving narrow gaps in the paper feed path not allowing the paper to go through properly.
A bad paper feed sensor can cause inttermittant paper feed jams. This sensor is located just above the feed rolls. A involved process to take out without breaking the plastic components.
The machine has paper feed clutches located at the back of the feed rolls. To get to them it is also involved. Sometimes these clutches slip and will cause paper feed problems. There paper feed solinoids may operate intermittantly not allowing the paper feed clutch to operate correctly.
The main board can also cause these types of problems, not allowing the correct signal to operate the paper feed solinoids.
There is so much in this area to locate and isolate for paper feed problems.
If all else fails, call Xerox for a service repair.