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  1. #1
    Service Manager 1,000+ Posts
    Sharp 402SC Print issue-HELP!

    guitar9199's Avatar
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    Sharp 402SC Print issue-HELP!

    Good morning...

    I've got a strange one here gang. A Sharp 402 that I fixed an L4-06 error on (Replaced rear ITB Sensor), but now it looks like my images have all shifted to the rear by about 3/4" of an inch... leaving a very wide black band, almost like a sky shot along the front edge of the page. The attached photo is of 2 internal prints. I even attempted to do a Sim 50-28 to try and get the image to recenter itself, but it just errored out.

    Willing to take any and all suggestions, including destruction of the machine.... Thanks!!
    Attached Images Attached Images

  2. #2
    Senior Tech 250+ Posts
    Sharp 402SC Print issue-HELP!

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    Re: Sharp 402SC Print issue-HELP!

    Have you rechecked all your connections? It almost looks like a short

  3. #3
    Service Manager 1,000+ Posts
    Sharp 402SC Print issue-HELP!

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    Re: Sharp 402SC Print issue-HELP!

    Quote Originally Posted by copiertec View Post
    Have you rechecked all your connections? It almost looks like a short
    I thought so too, but it's a new drum... and rebuilt transfer belt unit. It's in a very dusty warehouse environment, which is why I had to replace the transfer belt sensor. It was throwing an L4-06 error at first. Now that the error is cleared, this is my issue.

    I also tried making a copy off the platen, and that image was shifted to the rear of the machine as well... so it's not just prints.

  4. #4
    Senior Tech 250+ Posts
    Sharp 402SC Print issue-HELP!

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    Re: Sharp 402SC Print issue-HELP!

    Wow, interesting issue. I am assuming being it is dusty you cleaned all boards, etc. I want to say laser unit issue because of the reversing but maybe try another drum/developing unit and transfer belt. I also am assuming it is a B series as I do not see any color.

  5. #5
    Senior Tech 100+ Posts driving lots of miles's Avatar
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    Re: Sharp 402SC Print issue-HELP!

    I would try another transfer belt it doesn't look like the cleaning blade is doing its job.

  6. #6
    Service Manager 1,000+ Posts
    Sharp 402SC Print issue-HELP!

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    Re: Sharp 402SC Print issue-HELP!

    Quote Originally Posted by copiertec View Post
    Wow, interesting issue. I am assuming being it is dusty you cleaned all boards, etc. I want to say laser unit issue because of the reversing but maybe try another drum/developing unit and transfer belt. I also am assuming it is a B series as I do not see any color.

    Correct. Model MX-B402SC.

  7. #7
    Junior Member
    Sharp 402SC Print issue-HELP!


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    Re: Sharp 402SC Print issue-HELP!

    can you wipe off the toner on the page? if so check fuser, is the toner is fused then thats a weird ass issue.

  8. #8
    Senior Tech 250+ Posts spanky's Avatar
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    Re: Sharp 402SC Print issue-HELP!

    Are the lighter streaks just before the black streak developer?

    It looks like there may be a short between the drum and main charger.

    It is pulling developer from the developer unit and the black streak is toner on the drum in the area of the short.

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