MF731Cdw getting vertical black bar when scanning from top feeder.

[diceclip]

Hello, would appreciate any help.

I have a  MF731Cdw getting vertical black bar when scanning from top feeder, but only on every other copy job. If I copy a 10 page job, no vertical line, but every other copy job, I get a vertical bar like line from top to bottom of page. 

This only happens when scanning from the top feeder and only happens every other print job.

I get no lines when scanning from bed or on normal print jobs.

Thanks!

[Patrice]

Hi diceclip.

Since this issue is only happening with every other copy, there may be another internal issue with printer. Please call us at 1-800-OK-CANON (652-2666), Monday - Friday 10:00 a.m. to 6:30 p.m. ET (excluding holidays). The next steps will need to be provided by phone with a technician assisting you through them.