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  1. #1
    Service Manager 250+ Posts landspeeder's Avatar
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    Canon IR 7105 drum

    I need a good drum...my contract has 3 little dots > . < that small and they want the drum changed and anybody with a decent drum that wont leave marks
    Thanks

    You never realize how cheap a professional is until after you let an amateur do it.... and
    if this was an easy thing to do then everybody would be doing it! But it isn't and they are not!!

  2. #2
    Service Manager 10,000+ Posts
    Canon IR 7105 drum

    teckat's Avatar
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    Re: Canon IR 7105 drum

    Quote Originally Posted by landspeeder View Post
    I need a good drum...my contract has 3 little dots > . < that small and they want the drum changed and anybody with a decent drum that wont leave marks
    Thanks

    ******

    Make sure nothing is arching to cause those spots.
    ��

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


    Check transport duct for damage.


    It has been noted that the transport fan duct may become damaged or cracked. These leaks allow intermittent spots to occur when toner is blown back onto the sheets passing fan duct.


    Check transport fan duct seal. The seal is located inside of the iR105.




    The seal should not be torn or damaged.


    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.

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

  3. #3
    Service Manager 250+ Posts landspeeder's Avatar
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    Re: Canon IR 7105 drum

    Thanks for the info but I found three little chips in the drums surface...can they be somehow fixed.......so much $$$ for 3 little marks.....also we need a laser for the same model of machine, IR7105, do you have one?
    Thanks!!



    Quote Originally Posted by teckat View Post
    ******

    Make sure nothing is arching to cause those spots.
    ��

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


    Check transport duct for damage.


    It has been noted that the transport fan duct may become damaged or cracked. These leaks allow intermittent spots to occur when toner is blown back onto the sheets passing fan duct.


    Check transport fan duct seal. The seal is located inside of the iR105.




    The seal should not be torn or damaged.


    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.


    You never realize how cheap a professional is until after you let an amateur do it.... and
    if this was an easy thing to do then everybody would be doing it! But it isn't and they are not!!

  4. #4
    Trusted Tech 50+ Posts
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    Re: Canon IR 7105 drum

    You could try some clear nail polish on the 3 chips.


  5. #5
    Field Supervisor 500+ Posts
    Canon IR 7105 drum

    Herrmann's Avatar
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    Re: Canon IR 7105 drum

    Nail polish is a very good advice, you should also check the state of the coronas and be sure to reset the corona counters in service mode. This is very important on this model because the process control use among others the counter values to adjust the corona current. New Wires without resetting the counter can lead to arcing on the drum surface and might leave permanent damage. I have said this before, but this can not be overstated. Btw.: same to the IRADV 6xxx and 8xxx series. So take care.

    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!

  6. #6
    Service Manager 250+ Posts landspeeder's Avatar
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    Re: Canon IR 7105 drum

    Quote Originally Posted by Herrmann View Post
    Nail polish is a very good advice, you should also check the state of the coronas and be sure to reset the corona counters in service mode. This is very important on this model because the process control use among others the counter values to adjust the corona current. New Wires without resetting the counter can lead to arcing on the drum surface and might leave permanent damage. I have said this before, but this can not be overstated. Btw.: same to the IRADV 6xxx and 8xxx series. So take care.
    What is the abbreviation for the corona counters in service mode...where would I find it...we just happen to be changing the wires today and didnt know this and it makes sense!!!
    Thank you very much!!!

    You never realize how cheap a professional is until after you let an amateur do it.... and
    if this was an easy thing to do then everybody would be doing it! But it isn't and they are not!!

  7. #7
    Service Manager 10,000+ Posts
    Canon IR 7105 drum

    teckat's Avatar
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    Re: Canon IR 7105 drum

    Quote Originally Posted by landspeeder View Post
    What is the abbreviation for the corona counters in service mode...where would I find it...we just happen to be changing the wires today and didnt know this and it makes sense!!!
    Thank you very much!!!

    service mode level 1

    COPIER > COUNTER >PRDC-1

    PRM-WIRE primary charging wire counter
    PRM-GRID primary grid wire counter
    PO-WIRE pre-transfer charging counter
    TR-WIRE pre-transfer charging counter


    time for a manual

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

  8. #8
    Service Manager 250+ Posts landspeeder's Avatar
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    Re: Canon IR 7105 drum

    Quote Originally Posted by teckat View Post
    service mode level 1

    COPIER > COUNTER >PRDC-1

    PRM-WIRE primary charging wire counter
    PRM-GRID primary grid wire counter
    PO-WIRE pre-transfer charging counter
    TR-WIRE pre-transfer charging counter


    time for a manual
    Oh gotta manual...but its the service managers project and he isnt good at reading ...duhhh...he is the guy that left two screws near a dev assembly and wondered where they went and why there was a scrapping noise and two vertical lines on the copies...few years ago..I think I mentioned it

    Oh by the way thanks...and I will text him with the info

    You never realize how cheap a professional is until after you let an amateur do it.... and
    if this was an easy thing to do then everybody would be doing it! But it isn't and they are not!!

  9. #9
    Tech Specialist 1,000+ Posts Canuck's Avatar
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    Re: Canon IR 7105 drum

    Quote Originally Posted by canon33 View Post
    You could try some clear nail polish on the 3 chips.
    On 7105... VD is about 450v, VL is around 75v..nail polish spot= zero primary charge on the polish(VL=0). Laser writes black on this machine....so....nail polish=black dot.

    Last edited by Canuck; 11-27-2014 at 11:08 PM.

  10. #10
    Service Manager 10,000+ Posts
    Canon IR 7105 drum

    teckat's Avatar
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    Re: Canon IR 7105 drum

    Quote Originally Posted by Canuck View Post
    On 7105... VD is about 450v, VL is around 75v..nail polish spot= zero primary charge on the polish(VL=0). Laser writes black on this machine....so....nail polish=black dot.



    -:\

    White Out or White Nail Polish_?

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

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