HP Designjet T620 610 mm User Manual

							You can check the color calibration status of the currently loaded paper at any time by pressing the
View loaded paper key on the front panel. The status may be one of the following:
● PENDING: the paper has not been calibrated.
NOTE:
Whenever you update the printers firmware, the color calibration status of all papers is
reset to PENDING.
● OBSOLETE: the paper has been calibrated, but the calibration is now out of date because a
printhead has been replaced, and should be repeated.
● DONE: the paper has been calibrated, and the calibration is up to date.
● DISABLED: this paper cannot be calibrated.
NOTE:
Color calibration cannot be performed on plain paper, nor on any kind of transparent
material.
You can also check the color calibration status by using the HP Printer Utility.
You can start color calibration in the following ways:
● From the HP Color Center: select 
Calibrate Your Printer.
● From the front panel: select the Image Quality Maintenance menu icon 
, then Calibrate
color .
The calibration process is fully automatic and can be performed unattended after you have loaded paper
of the type you wish to calibrate—which should be A3 or any larger size.
The process takes about 3–5 minutes and consists of the following steps.
1. A calibration chart is printed, which contains patches of each ink used in your printer.
2.The chart is allowed to dry for a period of time that depends on the paper type, so that the colors
have time to stabilize.
3. The chart is scanned and measured.
4. From the measurements, the printer calculates the necessary correction factors to apply for
consistent color printing on that paper type. It also calculates the maximum amount of each ink
that can be applied to the paper.
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.
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							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. Color
management is done using a set of stored color tables; ICC profiles are not used. This method is
somewhat less versatile than the previous methods, but is a little simpler and faster, and can
produce good results with standard HP paper types.
NOTE: There are only two color spaces that the printer can convert to its own color space using
the stored color tables: Adobe RGB and sRGB if you are using Windows, Adobe RGB and
ColorSync if you are using Mac OS.
ColorSync is the Mac OS built-in Color Management System; so, in fact, when selecting ColorSync
it is the built-in color management part of Mac OS that is performing the color management, and
it is done based on the ICC profiles of specified paper type. ColorSync is available with the PCL
driver only.
You are recommended to consult the Knowledge Center at http://www.hp.com/go/T620/
knowledgecenter/  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 Print dialog:
 select the Paper Type/Quality  panel, then Color.
● 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 job. It will work correctly only when
printing on plain, coated or heavyweight coated paper.
● In the Windows HP-GL/2 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 Print dialog:
 select the Paper Type/Quality  panel, then Color > Printer Managed
Colors  > Emulated Printer .
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. If you are printing in pure black and white, there are no color adjustment options.
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							Printing in color
You can adjust the colors of your print in similar ways under Windows and Mac OS:
●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.
● In the Mac OS Print dialog:
 select the Paper Type/Quality  panel, then Lightness and Hue .
Under either operating system, you will then be able to make adjustments using a lightness slider and
three 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 adjust the gray balance of your print in similar ways under Windows and Mac OS:
●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.
● In the Mac OS Print dialog:
 select the Paper Type/Quality  panel, then Gray balance .
Under either operating system, you will then be able to make adjustments using separate controls for
highlights, midtones and shadows.
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							●The lightness slider simply makes the whole print lighter or darker. This slider is available under
Windows in the same window as the other grayscale controls; it is available under Mac OS by
selecting 
Lightness and Hue .
● 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.
Color management from the front panel
You can color-calibrate the loaded paper type from the front panel by selecting the Image Quality
Maintenance menu icon 
, then  Calibrate color . See Color calibration on page 54.
The other color options in the front panel can all be found by selecting the Setup menu icon 
,
then  Printing preferences > Color options .
NOTE:These front panel settings can all be overridden by the printer driver.
●Color/Grayscale
: you can choose to print in color or in shades of gray. Default:  Print in color. 
● Select RGB source profile
: you can choose from a selection of RGB source profiles recognized
by the printer. Default:  sRGB (HP). 
● Emulate printer
: you can choose to emulate a different HP Designjet printer. Default:  Off (no
printer emulation). 
TIP: If you have old HP-GL/2 files made for a different HP Designjet printer, you can send them
to the printer and use the front panel to turn on the appropriate emulation mode.
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							8 Practical printing examples
●Print a draft for revision with the correct scale
●
Print a project
●
Print a presentation
●
Print and scale from Microsoft Office
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							Print a draft for revision with the correct scale
This section demonstrates how to print a draft for revision with the correct scale from Adobe Acrobat.
Using Adobe Acrobat
1.In the Acrobat window, bring the mouse cursor to the bottom left corner of the document pane to
check the plot size.
2.Select  File > Print .
NOTE: The page size will  not be automatically selected according to the drawing size.
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							3.In order to keep the scale, set  Page Scaling to None (which is not the default setting).
4. Press the  Prop
 erties button and then select the  Paper/Quality tab.
5. Choo se whatever  Document
  Size and Print Quality  you want to use. If you want to define a new
custom paper size, press the  Custom button.
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							6.Select the Features  tab, and then Autorotate.
7. Click  OK, and ch ec
 k that the print preview in the Print dialog box seems correct.
Print a project
This section demonstrates how to print a project from AutoCAD.
Using Autodesk Design Review
Autodesk Design Review offers the  Use HP Instant Printing option. This needs to be enabled once,
after which it is taken as the default printing option until it is disabled.
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							Using HP Instant Printing
●Make sure Use HP Instant Printing
 has been selected. To print, click the Print icon in the toolbar
or select  File > Print . Choose your preferred printing settings and click  OK.
● Alternatively, Use HP Instant Printing can be launched directly from its own toolbar icon. In this
case, it starts immediately, using the settings you defined previously.
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							Using AutoCAD
1.The AutoCAD window shows the Model  tab followed by a tab for each layout. Normally one of the
layouts is printed rather than the model.
2. Select  File > Plot .
3. You can see further options by pressing the circular button in the lower right corner of the window.
NOTE: The Quality option here does not refer to the final print quality but to the quality of AutoCAD
viewport objects that are sent for printing.
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