Why is there a thin vertical line on the copy when I use the feeder?

[Ccorning]

There is a thin vertical line on copies when I use the feeder but not when I copy from the glass. The copier is new. Any ideas?

[oldboot]

I have just bought a MF229dw Why do I have a vertical line on my copy when I use the feeder, but not when I print from my computer or use the glass to make copies? How can I eliminate this vertical line?

[Ndawula]

Hello

I have Canon iR1024iF it puts a vertical stripe while am printing or photocopy