Dark bands on MX-4100

[Guest]

Have a MX-4100 that gives dark bands throughout the page running from front to back. Doesn't matter if your printing, scanning off glass, or using doc. feeder. I have replaced dv unit, primary unit, sacondary unit, ptc, and drum unit. This happens darker on black copies. If you run single color you can see it if you lo real close. Also, the problem comes and goes. It may run 50 or 60 copies and not do it then it appears. Any help would be greatly appreciated. Thanks Ron

[mojorolla]

Re: Dark bands on MX-4100

Posting a few scans of the issue would be helpful.

[JustManuals]

Re: Dark bands on MX-4100

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[ron67601]

Re: Dark bands on MX-4100

Posting a few scans of the issue would be helpful.

I would if you could see them, but they are so faint. Hard to see them in real life.

[Akitu]

Re: Dark bands on MX-4100

More info? How many copies etc?

[Nachoman4life]

Re: Dark bands on MX-4100

Whats the repeat interval of the band?