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Thread: canon ir 7105

  1. #1
    md aurif
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    Post canon ir 7105

    I have canon ir7105 , 4 copiers all drums are spread with small dots , wires are good, toner is also good, mirrors are clear, but I am not understand why the dots are coming on the copies, please
    tell me solution

  2. #2
    Service Manager 10,000+ Posts
    canon ir 7105

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    Re: canon ir 7105

    Quote Originally Posted by md aurif View Post
    I have canon ir7105 , 4 copiers all drums are spread with small dots , wires are good, toner is also good, mirrors are clear, but I am not understand why the dots are coming on the copies, please
    tell me solution
    --------------------------------------
    in Real Estate - IT'S CALLED Location>Location>Location-
    where is printer located (area)

    Clean or replace ALL OZONE filters periodically.
    Interest should be taken to clean fan duct of dirty filters.

    Check drum heater
    Check transport duct for damage.
    transport fan duct may become damaged or cracked. These leaks allow intermittent spots to occur when toner is blown back in
    Check transport fan duct seal.
    If damaged, replace immediately to maintain proper air flow and operation of machine.Not all foam seals are available in the parts catalog. Foam weather stripping from a hardware store may be used as a substitute.


    then
    polish drum
    **Knowledge is time consuming, exhausting and costly for a trained Tech.**

  3. #3
    Field Supervisor 500+ Posts
    canon ir 7105

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    Re: canon ir 7105

    After replacing the Wires (and yes, sometimes you need to replace the grid wires too) did you reset the counters in service mode? If you forget this, the controller thinks: "hey, these wires are really old, i will give them an extra boost" and fires with all his might, this results in extremly cases in arcing on the drum surface and so in spots on the printouts.
    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!

  4. #4
    Tech Specialist 1,000+ Posts Canuck's Avatar
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    Re: canon ir 7105

    Probably spilling from pre-transfer assembly or cleaner. Are they in a pattern or random?

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