My Canon 6080 does seem to be able to pick the fact that there is paper in the tray. the tray lifts but the on screen error tells me there is no paper in the tray. Any idea what this might be?

As per the manual it is "In the event of a pick-up error, the document
was fed to the front registration sensors." Clean all the Sensors and try. Use isoproyl alcohol only.

S. Mohan, India

Clean the two 'black dots' in the paper tray, just under the roller. They are actually paper sensors. Try 'page counting'. If this works, the scanner is okay. If the problem still persists, try reloading the scanning software.
S. Mohan, Chennai, India

Please explain the problem more clearly.
Switch on the scanner, load some papers and try 'page count'. If it works, then there is no problem with tray lifting or paper movement. If this is not working, try 'Qumatool' and give a command to lift the paper tray. If it lifts, then the problem is with a sensor under the paper lifting tray. (It may not be in HP - Home position). If the tray is not lifting, then you may have problem with motor. S. Mohan, Chennai, India

Disconnect the scanner from the Comp, Try 'page counting'. If the papers go through, then you know feed mechanism is okay. if the tray is not lifting, then you have a problem. Use Qumatool software and check if the tray is lifting. If the scanner tray if lifting then the motor is okay, if not, the lifting motor may need a check.If the motor is okay, but tray not lifting means the sensor in the paper tray is faulty. Check this out.

S. Mohan, Chennai, India

Use Qumatool and check if tray is lifting. If it is lifting, then Tray lifting motor is okay, then you need to adjust the sensor just under the Document lifting tray. If it not lifting, then you may have to change the motor. (Just now saw yr note and replying, hope it is not tooooo late!) S. Mohan

You may not have removed the piece of packing foam that lies in the track under the printer head. It is a long, narrow dark grey piece of foam that is wedged tightly in the track and is accessible when you lift the top cover. Unlike the pieces of orange tape it is hard to see and it is not shown in any of the setup instructions. If you don't remove it it prevents the paper in the A tray from moving and generates the "paper empty" message.

check tthe clips retaining teh feed rollers havent sliped off if it isnt picking up from tray take the tray at top out and then watch from above to see if the rollers are turning to feed paper.. if the lifts out check the side door guide isnt out of plavce check the end paper guides as well//check when you take the tray out look to see there is any paper stuck at the back where the tray sensors ares can cause a lift motor error aswell

because of u r printer roller has been damaged so it cant pick up paper & also change the gear box of your printer

is the copier seeing the paper in the cassette, if yes then your pick up assy. connectors could be loose or your pick up assy s. are bad. try switching the assy first before replacing also check your connectors

Lift up the black frame around the large soft grey pick rollers on the upper part of the paperfeed until it locks into place. Power off scanner and back on and the trya will lift and the paper will feed.