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  • Information
    Information regarding recent vulnerabilities

    HP is aware of the recent vulnerabilities commonly referred to as "Spectre" and "Meltdown". HP has published a security bulletin with patches for these issues and a list of impacted systems. We will continue to update the bulletin as more information becomes available and encourage customers to check the bulletin frequently.

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HP Designjet Z5400 PostScript ePrinter Series - Color management from printer drivers

Color management options
The aim of color management is to reproduce colors as accurately as possible on all devices: so that, when you print an image, you see very similar colors as when you view the same image on your monitor.
There are two basic approaches to color management for your printer:
  • Application-Managed Colors: in this case your application program must convert the colors of your image to the color space of your printer and paper type, using the ICC profile embedded in the image and the ICC profile of your printer and paper type.
  • Printer-Managed Colors: in this case your application program sends your image to the printer without any color conversion, and the printer converts the colors to its own color space. The details of this process depend on the graphics language that you are using.
    • PostScript: the PostScript interpreter module performs the color conversion using the profiles stored in the printer and any additional profiles sent with the PostScript job. This kind of color management is done when you are using the PostScript driver and you specify printer color management or when you send a PostScript, PDF, TIFF or JPEG file directly to the printer through the Embedded Web Server. In either case you have to select the profiles to use as default (in case the job doesn't specify any) and the rendering intent to apply.
    • Non-PostScript (PCL3, HP-GL/2, RTL): the color management is done using a set of stored color tables. ICC profiles are not used. This method is somewhat less versatile than the alternatives, but is a little simpler and faster, and can produce good results with standard HP paper types. This kind of color management is done when you send a PCL3, HP-GL/2, or RTL file directly to the printer through the Embedded Web Server.
        note:
      The printer can convert only the following color spaces to its own color space using the stored color tables: Adobe RGB and sRGB if you are using Windows, Adobe RGB if you are using Mac OS X.
You are recommended to consult the Knowledge Center (see Knowledge CenterKnowledge Center) to see how to use the color management options of your particular application.
To choose between Application-Managed Colors and Printer-Managed Colors:
  • In the Windows driver dialog: select the Color tab.
  • In the Mac OS X Print dialog: select the Color Options panel.
  • In some applications: you can make this choice in the application.
Printer emulation
If you want to print a particular job and to see approximately the same colors that you would get from printing the same job on a different HP Designjet printer, you can use the emulation mode provided by your printer.
  note:
This option is available only when printing an HP-GL/2, PostScript, or PDF job. It will work correctly only when printing on plain, coated or heavyweight coated paper.
  • In the Windows driver dialog: select the Color tab, then Printer Managed Colors, then select Printer Emulation from the Source Profile list. You can then select from the Emulated Printer list.
  • In the Mac OS X Print dialog: select the Color Options panel, then select from the Printer Emulation list.
Color adjustment options
The aim of color management is to print accurate colors. If you perform color management correctly, then you should be able to print accurate colors with no need of any manual color adjustments.
However, manual adjustments may be useful in the following situations:
  • If your color management is not working correctly for some reason
  • If you want colors that are subjectively pleasing rather than accurate
The printer driver provides different adjustment facilities depending on whether you are printing in color or in grayscale.
Printing in color
You can adjust the colors of your print under Windows:
  • In the Windows driver dialog: select the Color tab, ensure that the Advanced color adjustments box is checked, then press the Settings button beside it.
You can then make adjustments using a lightness slider and three color sliders.
Figure : Color sliders
  • The lightness slider simply makes the whole print lighter or darker.
  • The color sliders can be used to fade or emphasize each of the primary colors in the print. The primary colors may be red, green and blue; or cyan, magenta and yellow; depending on the color model used in the image.
The Reset button restores each slider to its default central position.
Printing in grayscale
You can convert all colors in your image to shades of gray in the following ways:
  • In your application program: many programs provide this option.
  • In the Windows driver dialog: go to the Color tab and look at the Color Options section. Select Print in Grayscale.
  • In the Mac OS X Print dialog: go to the Color Options panel and select Grayscale from the Mode drop-down list.
  • On the Embedded Web Server's Submit Job page: select Color, then set Color/Grayscale to Print In Grayscale.
You can adjust the gray balance of your print under Windows:
  • In the Windows driver dialog: select the Color tab, ensure that the Advanced color adjustments box is checked, then press the Settings button beside it.
You can then make adjustments using separate controls for highlights, midtones, and shadows.
Figure : Grayscale sliders
  • The lightness slider simply makes the whole print lighter or darker. This slider is available in the same window as the other grayscale controls.
  • The zone definition sliders can be used to define what you mean by highlight, midtone, and shadow.
  • The other controls for highlight, midtone, and shadow can be used to adjust the gray balance of highlights, midtones, and shadows respectively.
The Reset button restores each control to its default setting.

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