Canon DR-9080C Path-Through Scanner "error 4401" Questions

...4401 error code after scanning however many pages it does not matter, the computer does not give the scan complete screen for 30 seconds or so and it pops up a 4401 error. I have cleaned all the ...

...error "no paper present" 4401 when they tray lifts Clean the two 'black dots' in the paper tray, just under the roller. They are actually paper sensors. Try 'page counting'. If this works, ...

...error message 4401 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 ...

...error message: "No page was found in the feeder. (-4401). Pls try page counting in the local mode, If the tray lifts, then you know the sensor is ok. else, wipe clean the two black spots just ...