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Problem in Color Setting

Hi All,

I'm a graphic designer by my hobby. I'm using corel draw from it's 4th version. Recently I decided to purchase Corel Draw X5. So I download the trial from internet.

But, its disappointed me. When I print text/line art from X5, its prints sharp dotted lines. And the solids are not perfect solid. I opened some files from X4, and same result. But when I create a file in X5 and save it to X4, then print it from X4, its perfect. I'm using a HP LajerJet 5000 & Samsung ML1610 Printer.

What is wrong with Corel X5? or the Color setting?

my setting is :

 

19 Replies - Latest Reply

  • RaviR
    What is wrong with Corel X5? or the Color setting?

    Nothing, however our default settings do not work well with your workflow. Based on your description the most probable cause of the problem is that you have your black colors in the document defined as CMYK black but you are printing to GDI ( non-PostScript ) printer that does not support CMYK colors. CMYK colors get converted to RGB by the color engine, profile-based colorimetric conversions do not convert CMYK 0 0 0 100 to RGB 0 0 0, hence printer will use halftoned ( dithered ) fills instead of using solid black ink. CMYK colors are best used in the workflows where they can be natively supported ( PostScript printing and PDF output ). The solution is to enable "Preserve pure black" option in Tools/Color Management/Default Settings dialog, it will ensure CMYK 0 0 0 100 is converted to RGB 0 0 0. X4 merely has this option always turned on in print engine, you would get different results converting colors in the app and printing, depending to whom you talk this might be a good or bad thing.

    The problem is that we assumed our users know a difference between GDI and PostScript printing and difference between RGB and CMYK, which is not a case on much grander scale then we ever anticipated. We are working on making these things more straightforward at the same time ensuring we are not breaking color managed workflows.

    Gennady



    [edited by: Gennady Petrov at 17:36 (GMT -5) on Thu, Jun 10 2010]
  • In reply to Gennady Petrov:

    Hi Gennady, Thanks for your kind attention. As per your way, after enable "Preserve pure black" option I'm able to get proper black lines.

    But now tell me one thing, when I work on a design which will be print on a CMYK offset machine, which color setting will you prefer? Can you please show me in details the color setting for CMYK working (we use a sheet-feed CMYK Hidelburg machine for multicolor printing).

    Thanks in advance.

    And sorry for my bad english. R Ravi

  • In reply to RaviR:

    Hi Ravi,

    As soon as you print to your offset press via PostScript - either through RIP or directly via PostScript driver - using X5 default settings will do a job. Make sure you have "Native" selected in "Output colors as:" control on Color tab of Print dialog ( this is our default, you would not need to touch it unless it has been changed before ). Our default CM settings ensure that document is in CMYK primary color mode therefore the default color palettes you will see is CMYK which will help you to stick to CMYK-only colors. Even if RGB colors are still present in the document this should not be a problem as soon as you keep output to "Native" mode - the RGB numbers will be written intact into the PostScript stream and then converted to CMYK by the RIP/driver using rules that ensure RGB 0 0 0 converts to CMYK 0 0 0 100.

    If your RIP/driver is set up differently ( for example it is using CM for RGB to CMYK conversion ) or you print through print shop that only accepts CMYK content  - you would need to ensure that you select "CMYK"  as output mode in Print dialog and ideally there is no RGB, especially RGB 0 0 0 black,  colors in the documents, if there are "Preserve pure black" option has to be activated, otherwise RGB 0 0 0 will not be converted by Draw to CMYK 0 0 0 100 at print time.

    Hope this helps.

    Gennady



    [edited by: Gennady Petrov at 11:57 (GMT -5) on Fri, Jun 11 2010]
  • In reply to Gennady Petrov:

    Hi Gennady,


    You are awesome, thanks for your quick reply.

    You wrote "you would not need to touch it unless it has been changed before". But I was experimented with Color Management a lot. And now I cant take control it. So I work on my old Corel X2. Cause the new CM is not clear to me. My friend recently purchased a X5 version, on her PC, I saw the tutorial and both of us not helped by it. Both of us from Printing industry.

    Can you please help us to setting the right CM for CMYK designing in X5?

    Ravi R.



    [edited by: RaviR at 12:34 (GMT -5) on Fri, Jun 11 2010]
  • In reply to RaviR:

    You can restart Draw while pressing F8 button, this will revert application settings, including CM settings, to factory defaults. Be warned that this will also wipe out any workspace customizations you did so far, if you did any, make sure you save your workspace beforehand. Starting with default CM settings will most likely be enough to ensure your CMYK workflow works properly. There is more information in different posts on CorelDraw.com ( http://community.coreldraw.com/forums/p/19923/87442.aspx#87442 ), if you have more specific problems please post questions, we will try to answer them as soon as possible.

    Gennady

  • In reply to David Milisock:

    Hi All,

    My problem is : after importing any CMYK tiff image (edited on Photoshop) in Corel X5 or X4, it printing darker in offset machine. But it's prints on Xerox DocuColor 12 Printer very nice.

    Can u explain why?

  • In reply to RaviR:

    RaviR
    But it's prints on Xerox DocuColor 12 Printer very nice.

    Ok the offset device is postscript color managed and also is subject to the either positive or negative aspects of the adherence of a color integrity process during the print process itself.  I.E. do they run the job using densitometers and readings based on a linearization designed for the media, or do they just eyeball it?  So actual offset can vary quite a bit, the same file coul dlook great or crap fromn the same press.

    Xerox DocuColor 12 is an ICC controled device and is either reacting to an embedded profile or is simply asssuining a specific source color space for the CMYK file.  Since you mention X4 and X5 I am asuing that there is no embedded profile and the device is asuming a CMYK profile that just happens to please you.

     

  • In reply to David Milisock:

    Thanks David Milisock, Thanks for your response. I got narely same dark (extra black) print results from two other presses. So, now I think, there is some problem in my Corel X5 color setting. What to do? Thanks RaviR

  • In reply to RaviR:

    RaviR
    What to do? Thanks RaviR

    If you got the same result on two presses then I ask this in X5 are you using the default color management settings?  Is it the same printing company using two different presses or two different print companies and two different presses?

    I use X5 all the time and color should and color is state of the art.  My books at www.graphictechnology.com have detailed answers.

    I may be that the presses are correct and the digital device is modifying the images.  Can you post screen captures of your X5 CM settings and describe your work flow in detail?

     

  • In reply to David Milisock:

    Hi David,

    I was talking about two different print companies, both are using Heidelberg 4 color offset machines.

    My color management setting screenshoot is on my first post (above).

    I cant effort a Color calibrator device, so I use a normal viewing method to setup my CRT monitor.

    Plz help me. And thanks for your kind effort.

     

    Ravi R

  • In reply to RaviR:

    RaviR
    I cant effort a Color calibrator device, so I use a normal viewing method to setup my CRT monitor.

    Ok your color management settings beg a couple questions.  First during file creation are you converting all RGB elements in your file to CMYK and are you creating all vector elements as CMYK?

    If you are not doing all your conversions and creation as CMYK then change your methods and strat using CMYK only for press.  Then you can turn off soft proofing.

    Second please describe your system specifications in detail.  Specifically your video card and monitor.

    BTW I still do all my critical color corrections on CRT displays.

     

  • In reply to David Milisock:

    Hi David,


    I'm always use photoshop to edit pictures/bitmaps and then save them into tiff format (16 bit). And in CorelDraw, I always check all objects carefully for CMYK.

    I use AOC P7S91 CRT monitor and NVIDIA GeForce 9500 GT (512 mb) Graphics card on a Intel C2D PC. My Mainboard is Intel G31PR with 2GB DDR2 Ram and 500 GB Seagate 7200 RPM HDD.

    I think it should help you to solve my problem.

    Thanks in advance.

    Ravi R

  • In reply to RaviR:

    RaviR
    save them into tiff format (16 bit)

     So you import RGB into CorelDRAW, correct?

    RaviR
    And in CorelDraw, I always check all objects carefully for CMYK.

    So you convert your 16 bit RGB to 32 bit CMYK in CorelDRAW correct?  or Do you convert to CMYK in the print or export stream?

    Is the RGB color space of your Photoshop images the same as the RGB color space of CorelDRAW?

     

  • In reply to David Milisock:

    Hi David,


    Sorry for my bad english.
    And sorry for late too.

    I always import 16 bit CMYK into CorelDRAW. Will imporing in 32 bit solve my problem?

    And, I dont convert BGB to CMYK in CorelDraw. I use Photoshop CS3 for doing that. I convert vector objects and few text (pasted from MS Word) from RGB to CMYK in CorelDRAW only.


    Regards
    Ravi R