Feeder tray not lifting

Clean the 'black dot' in the centre of the paper tray. There is an optical sensor under that. The tray will lift even without paper, but will go back immediately.
If the scanner stops after 3 pages, check disk space in your computer. If you are scanning in TIFF uncompressed, it takes lot of space. For color and Grey try JPG format, for mono TIFF G4 is the ideal option.
S. Mohan, Chennai, India

Instructions

1 Lift the hatch on the feed tray and pull up the large green tab to the left of the roller. Remove any jammed or torn paper from under the roller and around the feed tray.
2 Pull the input feed tray out of the automatic document feeder. Grasp the feed tray with both hands and pull it straight out.
3 Check the interior of the automatic document feeder for jammed paper. Remove any jammed paper, then reinsert the feed tray into the automatic document feeder. Push down the feeder cover until you hear a click.

You will need to plug the printer andcomputer together with a USB cable in order to use the printer's scanningcapabilities. The scanning unit on theMX310 features an automatic document feeder on top of the printer, which willscan multiple pages itself. You can also choose to load documents on thescanning glass, which is covered by the scanner's lid. This is how to do it. 1. Turn on the printer by pressingthe "Power" button until it illuminates and turn on the attachedcomputer. Wait for the printer to finish its initialization process beforecontinuing. 2. Place the document face up inthe automatic document feeder if the document's papers are uniform in andfit in the feed tray. Adjust the paper-width guide to the of thedocument's papers. 3. Place the first page of thedocument face down on the scanning glass after you have lifted the scanningunit's cover, if you choose to not use the automatic document feeder. Close thecover again slowly so the document does not shift on the glass. 4. Press the "Scan"button on the printer's control panel, then press either "Black" or"Color," depending on the type of scan you would like to perform. 5. Retrieve the scanned documentfrom the automatic document feeder's output tray once the scan job is over.Otherwise, click on the "Yes" button on the computer's screen,indicating you would like to scan another page. 6. Lift the scanning unit's cover,remove the document from the scanning glass and place the next page of thedocument face down on the glass. Close the scanner's cover and click on the"OK" button on the screen to scan the next page. Repeat this processuntil all of the document's pages have been scanned.

Typically it is Automatic. When you insert documents into the feeder and press scan it should realize the paper is in the feeder tray.

There is a paper sensor just under the rolers in the lifting tray. Clean the area thoroughly with a damp cloth. Keep some sheets and try ]count only'. If it works then the sensor is okay, then you can try your scanning. If it is not sensing paper, check the sensor or connections to the sensor.
S. Mohan, India

If you are receiving an Error Code 103 or a Paper Jam error, but there are no pages in the ADF (Automatic Document Feeder), follow the steps below:

1. Close the scanning application (such as PaperPort)
2. Turn off the scanner and the computer
3. If you have a combination ADF with a Flatbed scanner, unplug the ADF cable from the base of the scanner
4. Plug the ADF cable back in
5. Turn on the scanner power
6. Turn on the computer
7. Try scanning again

For a Paper Jam or Error Code 103, make sure that the ADF cable in the rear is connected to the scanner base. Check the flatbed to make sure that it is clear. A page incorrectly placed on the flatbed may interfere with a page feeding through the ADF.

If your scanner stops scanning due to a paper jam in the Automatic Document Feeder (ADF), a warning dialog box appears after a few moments.

To clear a paper jam:

1. Open the Automatic Document Feeder cover.
2. Remove the jammed paper and close the cover.

If you are receiving a paper jam error, or if the scanner is running continuously, check to make sure the paper sensor arm is not stuck down.

1. Open the Automatic Document Feeder cover.
2. Look for the small black plastic arm
3. When you press on this arm, it should move freely up and down
4. If the arm is stuck down, please contact Technical Support for troubleshooting options
5. Close the ADF cover.

if using the feeder probably face up as it will likely pull the document in and invert it to lay face down on the scanning glass.

if you lift up the feeder (like lifting the top of a copy machine), then it would be face down on the glass.

there should be an image on the feeder illustrating how the document should be placed - if it looks like a page with lines on it with a bent corner then it is face up.

Try and clean the rubber rollers with Isopropyl alcohol. Do not use any solvents.
S. Mohan, Chennai, India

I'm sure this will solve your issue.
all the best.

Have you looked to see if there is any paper at all in the trays. That are getting hung up.?? I can help