Page 1 of 2 12 LastLast
Results 1 to 10 of 11
  1. #1
    Junior Member
    Join Date
    Apr 2021
    Location
    California
    Posts
    7
    Rep Power
    0

    Ta 6052ci scan color way off

    After suppling a customer with a loaner Ta 6052ci, they have found that when scanning both from the adp and platen, the resulting colors are way off from the original, though when printing a report (status page) from the machine or when printing from computer the colors are spot on. I haven't found a similar issue mentioned in any forums. Check this out: left is a calibration page from machine, right is a platen scan.
    Customers are a couple hours away, so wanted to get more info before heading out.

    this.jpg
    Last edited by Michael Bigbooty; 09-16-2021 at 06:32 PM.

  2. #2
    Master Of The Obvious 10,000+ Posts
    Ta 6052ci scan color way off

    blackcat4866's Avatar
    Join Date
    Jul 2007
    Location
    Lapeer, Michigan
    Posts
    22,434
    Rep Power
    462

    Re: Ta 6052ci scan color way off

    This might look familiar. Mine turned out to be a ISC PWB and calibration:

    Wanna see some cool copies?
    =^..^=
    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 10,000+ Posts
    Ta 6052ci scan color way off

    BillyCarpenter's Avatar
    Join Date
    Aug 2020
    Location
    Long Beach, Mississippi
    Posts
    13,348
    Rep Power
    447

    Re: Ta 6052ci scan color way off

    Quote Originally Posted by blackcat4866 View Post
    This might look familiar. Mine turned out to be a ISC PWB and calibration:

    Wanna see some cool copies?
    =^..^=


    I remember this but he said that his colors are off from the platen and doc feeder?
    Growth is found only in adversity.

  4. #4
    Junior Member
    Join Date
    Apr 2021
    Location
    California
    Posts
    7
    Rep Power
    0

    Re: Ta 6052ci scan color way off

    Thanks for that! A fellow tech is in the field and will visit the customer this afternoon. I sent him your link.
    Again, thank you!


    Michael

  5. #5
    Junior Member
    Join Date
    Apr 2021
    Location
    California
    Posts
    7
    Rep Power
    0

    Re: Ta 6052ci scan color way off

    Quote Originally Posted by BillyCarpenter View Post
    I remember this but he said that his colors are off from the platen and doc feeder?
    That is what the customer stated, but I will know more this afternoon when another tech has had the opportunity to try a few things.

  6. #6
    Service Manager 10,000+ Posts
    Ta 6052ci scan color way off

    BillyCarpenter's Avatar
    Join Date
    Aug 2020
    Location
    Long Beach, Mississippi
    Posts
    13,348
    Rep Power
    447

    Re: Ta 6052ci scan color way off

    The one time I had a color problem when scanning from the doc. feeder but colors were fine from the glass, here's what I have in my notes.



    example of scan quality issue.pdf




    Notes:


    Problem: Color background when scanning from DP but not from glass




    Solution: It was a bad ISC PWB (ISCPWB). I replaced and all is working.


    EDIT: Full disclosure - blackcat helped me solve this problem. Actually, he told me what the problem was. lol
    Last edited by BillyCarpenter; 09-16-2021 at 08:50 PM.
    Growth is found only in adversity.

  7. #7
    Junior Member
    Join Date
    Apr 2021
    Location
    California
    Posts
    7
    Rep Power
    0

    Re: Ta 6052ci scan color way off

    Interesting...thanks for that Billy. I should know what is going on in an hour or two. I'll post back with results from our tech in the field.

  8. #8
    Service Manager 10,000+ Posts
    Ta 6052ci scan color way off

    BillyCarpenter's Avatar
    Join Date
    Aug 2020
    Location
    Long Beach, Mississippi
    Posts
    13,348
    Rep Power
    447

    Re: Ta 6052ci scan color way off

    I also remember having an interesting conversation with blackcat about the internal color table of a copier. It's been a while and my memory is kinda foggy. I think somehow the table gets jumbled but I could be totally off base here.
    Growth is found only in adversity.

  9. #9
    Master Of The Obvious 10,000+ Posts
    Ta 6052ci scan color way off

    blackcat4866's Avatar
    Join Date
    Jul 2007
    Location
    Lapeer, Michigan
    Posts
    22,434
    Rep Power
    462

    Re: Ta 6052ci scan color way off

    Quote Originally Posted by BillyCarpenter View Post
    I also remember having an interesting conversation with blackcat about the internal color table of a copier. It's been a while and my memory is kinda foggy. I think somehow the table gets jumbled but I could be totally off base here.
    Your memory is good. =^..^=
    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
    Senior Tech 250+ Posts PrintWhisperer's Avatar
    Join Date
    Feb 2018
    Location
    Wild West
    Posts
    431
    Rep Power
    29

    Re: Ta 6052ci scan color way off

    Quote Originally Posted by BillyCarpenter View Post
    I also remember having an interesting conversation with blackcat about the internal color table of a copier. It's been a while and my memory is kinda foggy. I think somehow the table gets jumbled but I could be totally off base here.
    Not much but color theory is a bugger much less where and how it takes place in each manufacturers machines, but for Kyocera the color tables are to modify the print output and do not effect scanning. However they work in the same place which is the colorspace of the device and it's gamut.

    Think of it as a 3 dimensional representation of color where the size and shape represents how many colors the device can reproduce.

    In scanning, we have to convert RGB to CMYK using LAB value adjustments. These are set in the U425 Calibration using the 7505000005 chart which has LAB reference values for it's patches so the machine can build it's colorspace to accurately represent colors.

    This defect is interesting because the color conversion is regular, not random.

    If it had a dual scan feeder he should have ran the CIS to see if the error is limited to Scanner/CCD or for both involves downstream processing.

    Scanner sliders can wear/break causing CCD misalignment, I even saw one from the factory which was missing them

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Get the Android App
click or scan for the Copytechnet Mobile App

-= -= -= -= -=


IDrive Remote Backup

Lunarpages Internet Solutions

Advertise on Copytechnet

Your Link Here