IRA6055 Line on prints

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  • livancicm
    replied
    Re: IRA6055 Line on prints

    on 6055 laser writes to white

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  • subaro
    replied
    Re: IRA6055 Line on prints

    I hear you. As far as I know, when you block the laser, or part of it, there not supposed to be any image on that part of the print, cause the drum has no charge and therefore toner would not be attracted to it. Unless, Canon has a different theory of the print cycle, then black not suppose to be there. I will have to look into that. It seems strange though. It just came to my mind, as to why you got black print, and therefore ask the question. Good to know anyways.
    I am going to block the laser on a machine I am working on right now and see the result again, though I am sure it suppose to be blank.

    I just confirmed my theory on a lexmark mfp. Unless Cannon machines has a different technology, then when you block part of laser the output should be blank, not black. I downloaded the service manual for this machine and I will look into it later.
    Thanks Brian for the feedback. I am just curious to why the black prints when you block the laser. In fact or future, you could block the entrance of the drum where the laser projects, it is easier this way and is the same as blocking the laser.

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  • Brian8506
    replied

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  • subaro
    replied
    Re: IRA6055 Line on prints

    Originally posted by Brian8506
    Nice call Canuck! I blew out the light path from the slit glass down to the drum. I also pulled the laser again and cleaned the mirror inside with a glass cleaner because I thought I could see spots that hadn't come off when I dry wiped it. Line gone. Going to monitor it so I don't get disappointed. Thanks Canuck for your help. Thanks also Subaro!

    just want to check if cleaning the lsu and slit glass would solve a black line issue. I thought it would solve a white line issue. This fix just blows me away, but if it did solve the problem, what is there to be said. If the line was random, I can see a failing lsu causing random lines, but not the line in the same position all the time.
    I can see with copy from the adf causing that as the slit glass or the white strip with dirt. Also, if the paper is being fed letter and not letter R, then the line that also goes through the void area would occur as pointed out.
    The best way to check those print is to do the internal print check from the service mode and use that as the reference as to see the problem solved.
    In this business, you see all kinda fix that just looks like magic and its make you wonder.

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  • subaro
    replied
    Re: IRA6055 Line on prints

    Originally posted by Brian8506
    Nice call Canuck! I blew out the light path from the slit glass down to the drum. I also pulled the laser again and cleaned the mirror inside with a glass cleaner because I thought I could see spots that hadn't come off when I dry wiped it. Line gone. Going to monitor it so I don't get disappointed. Thanks Canuck for your help. Thanks also Subaro!
    This is the way it should be. When a problem is solved, then the feedback to the community should be shared, so the folks would get some understanding of the cause and fix.
    Thank you for posting your results. High marks.

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  • Canuck
    replied
    Re: IRA6055 Line on prints

    Originally posted by Brian8506
    Nice call Canuck! I blew out the light path from the slit glass down to the drum. I also pulled the laser again and cleaned the mirror inside with a glass cleaner because I thought I could see spots that hadn't come off when I dry wiped it. Line gone. Going to monitor it so I don't get disappointed. Thanks Canuck for your help. Thanks also Subaro!
    Good stuff👍

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  • Brian8506
    replied
    Re: IRA6055 Line on prints

    Originally posted by Brian8506
    I checked that but I plan on checking it again because you never know
    Nice call Canuck! I blew out the light path from the slit glass down to the drum. I also pulled the laser again and cleaned the mirror inside with a glass cleaner because I thought I could see spots that hadn't come off when I dry wiped it. Line gone. Going to monitor it so I don't get disappointed. Thanks Canuck for your help. Thanks also Subaro!

    Leave a comment:


  • Brian8506
    replied
    Re: IRA6055 Line on prints

    Originally posted by Canuck
    Piece of fluff in laser slit glass area? Pull out glass, process(drum) unit, dev...blow out the area of light path gently. I've had a line from this a few times..
    I checked that but I plan on checking it again because you never know

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  • Canuck
    replied
    Re: IRA6055 Line on prints

    Piece of fluff in laser slit glass area? Pull out glass, process(drum) unit, dev...blow out the area of light path gently. I've had a line from this a few times..

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  • Brian8506
    replied
    Re: IRA6055 Line on prints

    I blocked off half the slit glass with black tape and got black. Plan on being there today hopefully. Will try blocking with paper. Didn't think to do that

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  • subaro
    replied
    Re: IRA6055 Line on prints

    If the half the laser is blocked, then the laser cannot write to the drum as there will be no charged on that part of the drum, so the line should not appear there. Am I correct in that assessment.

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  • subaro
    replied
    Re: IRA6055 Line on prints

    Originally posted by Brian8506
    Line is on the page when I stop it with copy on the belt. Entire ETB assembly and ETB cleaning assembly replaced including blade. Everything mechanical that I can think of has been swapped or replaced. I can adjust quality and line will fade away but then copies are too light.
    Wow. Mystery. Just thought of something. If you can, put a piece of paper of some kind of tape about halfway on hte laser glass . Then, in theory , you should only get print on half of the page, and the line should only be halfway if it is the lase writing that line, which I doubt it is. But anything is possible. Let us know when you solve it.
    Is that line solid and straight, like a normal print. Take a loupe and compare it with a normal print. Also, try a print from a usb stick, pdf file..

    When the going gets tough, the tough gets going......

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  • Brian8506
    replied
    Re: IRA6055 Line on prints

    Originally posted by subaro
    You said the line was on the etb belt. Did you replace the etb belt cleaning blade ?. The lsu unlikely would not repeat the line on the exact position all the time. Take the cleaning blade from the other machine and swap it and see. I think the problem maybe mechanical.
    The fuser and the rest would all have to be ruled out if the line is showing on the etb belt. Also check the contacts of the etb belt.
    Line is on the page when I stop it with copy on the belt. Entire ETB assembly and ETB cleaning assembly replaced including blade. Everything mechanical that I can think of has been swapped or replaced. I can adjust quality and line will fade away but then copies are too light.

    Leave a comment:


  • subaro
    replied
    Re: IRA6055 Line on prints

    Originally posted by Brian8506
    One line. Same place all the time. If I can get ledger paper. I will test it but I could probably get the same results from legal. Law office and they don't use ledger. Probably won't get to test until Tuesday.

    You said the line was on the etb belt. Did you replace the etb belt cleaning blade ?. The lsu unlikely would not repeat the line on the exact position all the time. Take the cleaning blade from the other machine and swap it and see. I think the problem maybe mechanical.
    The fuser and the rest would all have to be ruled out if the line is showing on the etb belt. Also check the contacts of the etb belt.

    Leave a comment:


  • Brian8506
    replied
    Re: IRA6055 Line on prints

    One line. Same place all the time. If I can get ledger paper. I will test it but I could probably get the same results from legal. Law office and they don't use ledger. Probably won't get to test until Tuesday.

    Leave a comment:

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