Question about Brother IntelliFAX 4100 Laser Fax

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HORIZONTAL Lines on faxed/scanned pages.

When we print the printer works fine, but if we copy or transmit a fax, at odd intervals there is a 2" wide black skid mark in the middle of the fax. I scanned a 30 page file and there were the marks going down 4-9 pages at a time adn there were also some perfect pages, but few. I have cleaned the white strip and the glass light bar to no effect. We are still getting the black mark. It looks like a rubber roller skipped or something...very odd.

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Re: HORIZONTAL Lines on faxed/scanned pages.

I've seen this before. Since the printer portion is working fine that points to the scanner mechanism as the culprit. There are two things I have seen cause this. 1) If the line is a perfect rectangle all the way to the edge of the page then the light bar itself is dying and there isn't much you can do to save the unit. Send it in for warranty repair if you have the option. 2) If the line is more like a skid mark like you mentioned, then the paper that is being scanned is not pressing up fully against the light bar. Not enough light is bouncing off the page and the scanner can't read it well. This can also be caused by a roller not feeding correctly and then bunching up the paper a little bit. I would check the rollers for wear or something being off center. This can sometimes be caused if the machine has ran a high volume or thick paper. I would really think the cause would be one of these two since you are getting the marks at odd intervals, if the intervals were regular it could *possibly* be the drum but as I stated before, with the print function working right, I doubt it.

Posted on Aug 22, 2007

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