Scratches dragged along transparency print. (Brother HL-3140CW)

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  • brosm
    Junior Member
    • Jul 2025
    • 4

    #1

    Scratches dragged along transparency print. (Brother HL-3140CW)

    Hi! Im not a tech but i luckily was directed to this forum. hoping someone here can help. Ive attached a photo below.

    Ive printed on laser transparencies with this printer for years- (i know it technically doesn't say you can but ive been fine for years using the thickest paper setting on the same paper.) Recently every few prints ill get a couple long scratches longways on the print. Its intermittent and doesnt happen with other media. Seems to line up with either the rollers or those metal teeth looking things on the fuser. each group of scratches is about 2 inches apart. I assume this might just mean theres some buildup somewhere and it needs to be cleaned, but i cant find anything obvious just from visual inspection. Ive opened the machine up before the paper gets to the fuser and there are no streaks while its on the belt, toner drums look clean and ive wiped them down, cleaned the corona wires

    the transparency film says its 4 mil. Here is the product link: https://www.amazon.com/dp/B078R4DGSB?ref=nb_sb_ss_w_as-reorder_k0_1_16&amp=&crid=ZCLBP70JZB7&sprefix=lase r%2Btransparen&th=1

    Thank you!​
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  • tsbservice
    Field tech

    Site Contributor
    5,000+ Posts
    • May 2007
    • 8006

    #2
    Looks like you need a new fuser.
    A tree is known by its fruit, a man by his deeds. A good deed is never lost, he who sows courtesy, reaps friendship, and he who plants kindness gathers love.
    Blessed are they who can laugh at themselves, for they shall never cease to be amused.

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    • brosm
      Junior Member
      • Jul 2025
      • 4

      #3
      Originally posted by tsbservice
      Looks like you need a new fuser.
      Thanks! If i were to open up the fuser cartridge, would i be able to see the damage to it?

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