03-06-2019 03:05 PM - edited 03-06-2019 03:30 PM
I have the exact sasme issue with my MX 922 scanner. I just spent 1 hour and 6 minutes on the phone with a very frinedly Cannon Support tech.
In my case it only happens when I scan on the big glass, not when I use the ADF. Each time I scan anything that is 8.5 inches wide (full size letter or anything else with the same width) it introduces that black vertical line on far the right side.
The line shows everytime in the scan preview as well as in the final saved scan, no matter what format I use to save, i.e. JPG or PDF.
It also happens when I use the MAC OSX Image Capture Utility to scan instead of the Canon IJ Scan Utility..
Copying, and printing works fine. As does scanning with the ADF.
The tech was not able to fix the issue.
03-08-2019 09:07 AM
I am having the same issue with my Pixma TS6120. I am in the process of scanning photos to save to files on my pc. The only difference from the rest of the complaints is that I am not feeding my photos into the printer. I am placing them directily on the glass to scan. I tried cleaning the glass, updating the firmware and restarting the printer with no success. I don't know what else is left to try. Any suggestions or help would be greatly appreciated.
04-08-2019 01:11 PM
I just started getting this black line also on my Canon Maxify MB2320. I tried everything they said here but to no avail. I finally out of frustration rubbed my thumb across the small glass area for the ADF reader. I thought it would smear or something but low and behold, the black line is gone now. I tried the credit card trick, I tried the rag dry and wet, I tried blowing it out and nothing worked. I checked for firmware and software updates but there were no new ones. I rubbed my thumb acrossed it straight twice and it worked.
Give it a try. Make sure your hands are completely clean and completely dry... Do not assume your thumb or fingers are clean. If you have touched anything with your thumb or fingers then they are not clean anymore... Make sure they are COMPLETELY clean and dry.
04-08-2019 07:17 PM
That only works if the black vertical line appears due to using the ADF.
In my case ADF scanning works fine. I get the black line when I scan letter size pages on the glass platen.
No solution for fixing that yet.
07-31-2019 11:53 AM
Bingo! Abosolutly right. Glass LOOKED clean but it wasn't. As I slowly passed my finger on the glass I could feel something. I took a credit card edge and removed what ever it was. Wiped with a clean soft cloth and problem solved. No more lines. To be clear, this was on the small strip of glass in front of the big glass bed. Thank you.