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  1. #1
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    Toshiba 4505AC colors mismatch

    Hi guys Im newbie and new to toshiba,
    my 4505AC has mismatch colors when printing or copy, i have done A-A but did not work, please help. As you guys can see magenta is always below the others. I also try to change Magenta drum to yellow but still no hope. Many thanks and wish you guys all the best.
    94A9EDDC-AC9A-4D16-8D50-E226B87D8586.jpg7514E87C-5383-48A4-8C9A-64B5F666861E.jpg
    Last edited by longyen.hcm@gmail.com; 01-22-2023 at 02:17 AM.

  2. #2
    Master Of The Obvious 10,000+ Posts
    Toshiba 4505AC colors mismatch

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    Re: Toshiba 4505AC colors mismatch

    Tell me about this "A-A". What is it?

    I was thinking that maybe a color calibration might be in order. Have you looked at your manual yet? =^..^=
    If you'd like a serious answer to your request:
    1) demonstrate that you've read the manual
    2) demonstrate that you made some attempt to fix it.
    3) if you're going to ask about jams include the jam code.
    4) if you're going to ask about an error code include the error code.
    5) You are the person onsite. Only you can make observations.

    blackcat: Master Of The Obvious =^..^=

  3. #3
    Service Manager 5,000+ Posts
    Toshiba 4505AC colors mismatch

    SalesServiceGuy's Avatar
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    Re: Toshiba 4505AC colors mismatch

    How many black and colour clicks are on the copier?

  4. #4
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    Re: Toshiba 4505AC colors mismatch

    Quote Originally Posted by blackcat4866 View Post
    Tell me about this "A-A". What is it?

    I was thinking that maybe a color calibration might be in order. Have you looked at your manual yet? =^..^=
    many thanks for your reply
    Yes, i mean “A-A” is color calibration, and i also tried to follow manual step by step but not work .

  5. #5
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    Re: Toshiba 4505AC colors mismatch

    Quote Originally Posted by SalesServiceGuy View Post
    How many black and colour clicks are on the copier?
    Thank you for your reply, black is 5k and total color is 232k.
    Last edited by longyen.hcm@gmail.com; 01-22-2023 at 05:41 AM.

  6. #6
    Service Manager 5,000+ Posts
    Toshiba 4505AC colors mismatch

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    Re: Toshiba 4505AC colors mismatch

    Quote Originally Posted by longyen.hcm@gmail.com View Post
    Thank you for your reply, black is 5k and total color is 232k.
    With 232,000 colour clicks on the copier, the CMYK developers could be worn out.

    No amount of button pushing on the LCD panel is going to bring this copier back without new parts

    If nothing has been done to the copier to-date, many parts need to be replaced costing well over $1,000.00 and a lot of hours are needed to bring this copier back into working considtion.

    I would start by entering Service Mode and printing off the PM list from Code 103.

    I hope this copier is not under any service contract because someone is facing a big invoice to bring this copier back.
    Last edited by SalesServiceGuy; 01-22-2023 at 01:54 PM.

  7. #7
    Service Manager 5,000+ Posts
    Toshiba 4505AC colors mismatch

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    Re: Toshiba 4505AC colors mismatch

    I recommend you watch these two videos

    Toshiba eStudio 5055 Develper Rebuild - YouTube

    Toshiba eStudio 5055 Drum Unit Rebuild - YouTube

    Assemble all of the new CMYK replacement Developers, Drums, Grids, Needle Electrodes and 2nd Transfer roller that you need.

    It is less expensive to buy some off these parts by ordering a PM kit.

    Remove the same from the copier and rebuild them offsite.

    Then perform a colour calibration and registration from the LCD panel.

    The e4505AC is now two models back discontinued and should be replaced with a new copier.
    Last edited by SalesServiceGuy; 01-22-2023 at 02:21 PM.

  8. #8
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    Re: Toshiba 4505AC colors mismatch

    Quote Originally Posted by SalesServiceGuy View Post
    I recommend you watch these two videos

    Toshiba eStudio 5055 Develper Rebuild - YouTube

    Toshiba eStudio 5055 Drum Unit Rebuild - YouTube

    Assemble all of the new CMYK replacement Developers, Drums, Grids, Needle Electrodes and 2nd Transfer roller that you need.

    It is less expensive to buy some off these parts by ordering a PM kit.

    Remove the same from the copier and rebuild them offsite.

    Then perform a colour calibration and registration from the LCD panel.

    The e4505AC is now two models back discontinued and should be replaced with a new copier.
    Many thanks for your replies, it means alot to me, ill look into it and try to do my best. Hope i can save this copier

  9. #9
    The Wolf 2,500+ Posts mojorolla's Avatar
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    Re: Toshiba 4505AC colors mismatch

    Have you tried the Color Deviation Adjustment?
    05-9062, be sure to load bypass tray with paper before running this adjustment.
    This will run 05-4719 first, which is color registration. If this fails before the pattern is printed, you most likely have a hardware issue.


    Failing to plan is planning to fail!!!

  10. #10
    Field Supervisor 500+ Posts
    Toshiba 4505AC colors mismatch

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    Re: Toshiba 4505AC colors mismatch

    What FW version your machine have?
    Defects are simple, our mind is complicated

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