Hi guys. I have a weird problem with a mp c4000. It prints perfectly, from the exposure glass it copies great but from adf it makes this weird background on half the page. If I scan from the adf, the background does not appear on the scanned image. I attached the scanned prints and copies. First page is a test pattern, second is a copy from exposure glass and the third and fourth are copies from the adf. Any ideeas are welcome. Thank you.
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