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  1. #1
    merrick
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    Unhappy taskalfa 250ci colour issues

    Hi all,
    First post and im thinking its a hard one.
    I have a 250ci thats done 14k with colour problems.
    the final copy wether its printed or off the glass has an appearance of orange peel. its difficult to explain. the colour appears grainy and slightly faded. rough looking.
    any ideas?
    firmware?
    blow it up?
    thanks in advance im kinda stumped with this.

  2. #2
    Gimp 500+ Posts JSC's Avatar
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    Can you upload a JPG for us to have a look at?

  3. #3
    Master Of The Obvious 10,000+ Posts
    taskalfa 250ci colour issues

    blackcat4866's Avatar
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    Yeah, scan an image of your issue. The first thing that I would check, regardless of number of prints, is to check sim U131. If the value for any color differs from the target by 25 points of more, you'll probably need to replace that developing unit. You can try a developer refresh, but if it's that far out it probably won't help. Run some U089 Gray test patterns in each of C, M, Y, & K. That will help to narrow it down.

    If your customer is running long continuous runs of 15% or more fill, there are a series of adjustments to help maintain developer density. Come back with more details. =^..^=
    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 =^..^=

  4. #4
    merrick
    Guest
    Ok heres what i have so far...
    131
    Defaults
    C - 168
    M - 152
    Y - 168
    K - 156

    Control
    C - 162
    M - 161
    Y - 155
    K - 151

    Dev Refresh - no change

    ill get some jpg's up asap

    thanks

  5. #5
    Service Manager 1,000+ Posts
    taskalfa 250ci colour issues

    10871087's Avatar
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    Quote Originally Posted by merrick View Post
    the final copy wether its printed or off the glass has...
    Are you saying that it only happens on the last copy of a set? or is every page like that?

  6. #6
    Master Of The Obvious 10,000+ Posts
    taskalfa 250ci colour issues

    blackcat4866's Avatar
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    Your U131 values are fine. Developer density is not an issue.
    Are you printing onto special media? And using the appropriate media type settings?

    I'll be watching for your scans. =^..^=
    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 =^..^=

  7. #7
    Trusted Tech 50+ Posts
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    Use Konika Minolta Bizhub Color Table, it's rules perfeeeeeect !!!

    Bye !

  8. #8
    merrick
    Guest
    scans as requested.
    My apologies for the delay?
    Attached Files Attached Files

  9. #9
    Master Of The Obvious 10,000+ Posts
    taskalfa 250ci colour issues

    blackcat4866's Avatar
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    I'm thinking primary charge BK (302H793400). Sometimes cleaning with glass cleaner helps, sometimes not. Never use any alcohol or any oil based cleaner. Plain water or glass cleaner only. =^..^=
    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 =^..^=

  10. #10
    merrick
    Guest
    thankyou ill give it a try and let you know the results.

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