Canon IRC 2620 - ITB slipping

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  • ordinaryhandsome
    • May 2025

    #1

    Canon IRC 2620 - ITB slipping

    Hello everyone,

    just registered here and this is my first post thx to fact that I just got IRC 2620n before a week and I love it. Machine was quite used before, it was laying in some closed moist office few a years so now I got it and I want it to get it back to life. I am not a service tehnican, just doing this for fun and full couriosity refurbishment of my LBP5000 gave me a lot of inputs how this machines work so I am giving myself this second shot also lol.

    Canon IRC 2620n - ITB slipping due to a belt cleaning blade supression. How to make it roll nicely?

    After having a nightmare with selection of several (used) drums and toners that guy gave me with this baby (and 751 errors), I finally got 2620n printing nice & clear, but colors were (and still are seriously) displaced. After non-stop auto-gradation failures and stuff, I checked that ITB is slightly slipping but had no idea why. Thx to one of posters here (teckat) in some other thread who wrote that ITB cleaning blade might be a problem if ITB is slipping, I removed that blade and tried to print without it and... colors at the end were finally aligned as it should be. Yeah!

    I cleaned out (that end-plastic) cleaning blade with alcohol but now problem became bigger. Now, ITB is slipping even more than before, sometimes even stops for a moment.

    How to solve this problem? Should ITB assy inside cleaning do a trick or there is some other ways/adjustments to do in ITB cleaning block?

    Ps: Just asking this because I already took ITB assy out and inspected it, grip doesn't look that bad. Just thinking that higher tension inside assy could damage plastic gears and I really like that machine.

    Thx,
    Joseph
  • Tricky
    Field Supervisor

    Site Contributor
    2,500+ Posts
    • Apr 2009
    • 2621

    #2
    Re: Canon IRC 2620 - ITB slipping

    Take out the cleaning blade and spread some waste toner along it.

    Sent from my SM-G930F using Tapatalk

    Comment

    • ordinaryhandsome

      #3
      Re: Canon IRC 2620 - ITB slipping

      Thx skynet, I tried that, it helped somewhat but bad results are still there.

      OK I found service manual for this machine and I will clean ITB assy, guess there is no other way (like blade adjustment or something).

      Comment

      • Tricky
        Field Supervisor

        Site Contributor
        2,500+ Posts
        • Apr 2009
        • 2621

        #4
        Re: Canon IRC 2620 - ITB slipping

        The ITB is not that hard to take apart and clean the rollers, try cleaning inside the belt too avoid alcohol. Clean the belt with a cloth and maybe something like wd40 on the rollers

        Since you are not a tech the four foam rollers are transfer rollers use a dry cloth on these nothing else

        Sent from my SM-G930F using Tapatalk

        Comment

        • Rod...
          Technician
          • May 2016
          • 11

          #5
          Re: Canon IRC 2620 - ITB slipping

          Yes, definitely need to clean the inside of the ITB Assy.. I believe the heart of the issue is that large rubber drive roller for the ITB, but while it is apart use canned air and give her a nice dusting off (out doors of course). Pay close attention to the way you take off the belt, I believe Canon used to have a specific orientation of how that thing should be installed. I think there used to be some kind of markings on the inner lip of said belt and it should be on a specific side (front or back). Also a little wd40 on the big rubber drive roller ONLY.. Good luck.

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