Canin irc6870 upper fusing roller & lower fusing roller coating peeling off????

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  • legaspiclg
    Technician

    50+ Posts
    • Oct 2011
    • 72
    #1

    [Misc] Canin irc6870 upper fusing roller & lower fusing roller coating peeling off????

    hI,
    Hello everybody, i have a Canon IRC6870 who has a frequent problem with its UPPER FUSING ROLLER & LOWER FUSING ROLLER, IT IS the 4th time now with the span of 9 months that i've replaced the said parts. i think it copied only less than every 5 thousand copies when the red rubber coating on the upper & lower roller peeled off from its aluminum housing. I dont know the causes for these one, maybe its because of the temperature, or the tension between the 2 roller.
    Please help.

    Cesar
    Tags: None
    • Herrmann
      Senior Tech

      Site Contributor
      500+ Posts
      • Jan 2006
      • 792
      #2
      Re: Canin irc6870 upper fusing roller & lower fusing roller coating peeling off????

      The pressure between the rollers is much too high, causing this symptom. Have a look at the screws which holds the pressure springs, nearby there is a hole with an M4 thread, where the shipping secure screws were installed. Take two screws and insert them into the holes, then tighten them slowly while looking from the side at the fuser rollers. The correct pressure is arrived when the pressure spot of the silicone layer has approx 6-5 mm (hope, you understand what i mean, english is not my home language). The Fuser rollers are now good for 120K Copies and more, with no fusing problems while using normal grammatures like 80g/sqm

      Did the trick for me
      If sometimes you feel a little useless, offended and depressed always remember that you were once the fastest and most victorious sperm of hundreds of millions!

        Comment

        • legaspiclg
          Technician

          50+ Posts
          • Oct 2011
          • 72
          #3
          Re: Canin irc6870 upper fusing roller & lower fusing roller coating peeling off????

          Originally posted by Herrmann
          The pressure between the rollers is much too high, causing this symptom. Have a look at the screws which holds the pressure springs, nearby there is a hole with an M4 thread, where the shipping secure screws were installed. Take two screws and insert them into the holes, then tighten them slowly while looking from the side at the fuser rollers. The correct pressure is arrived when the pressure spot of the silicone layer has approx 6-5 mm (hope, you understand what i mean, english is not my home language). The Fuser rollers are now good for 120K Copies and more, with no fusing problems while using normal grammatures like 80g/sqm

          Did the trick for me

          Hi Hermann,
          Thank you very much for your wonderful advice on my problem, sorry for being pain in the neck, but could you please give me the pictures or photos of the said area to be adjusted as i dont want to touched the said 2 screws that holds the spring for the tension between the 2 rollers. PLease help me.
          Many thanks.

            Comment

            • Herrmann
              Senior Tech

              Site Contributor
              500+ Posts
              • Jan 2006
              • 792
              #4
              Re: Canin irc6870 upper fusing roller & lower fusing roller coating peeling off????

              This is an excerpt of the installation manual, hope this helps:

              screws.jpg
              If sometimes you feel a little useless, offended and depressed always remember that you were once the fastest and most victorious sperm of hundreds of millions!

                Comment

                • legaspiclg
                  Technician

                  50+ Posts
                  • Oct 2011
                  • 72
                  #5
                  Re: Canin irc6870 upper fusing roller & lower fusing roller coating peeling off????

                  Hi Hermann,
                  Thank you very much.

                  Cesar Legaspi

                    Comment

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