Converting pantone colors manually, Tips, Color matching between different hp designjets – HP Designjet 4520 Printer series User Manual

Page 167: Printing via separate postscript drivers

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Converting PANTONE colors manually

If you have a non-PostScript printer, or if you are using an application (such as Adobe Photoshop) that
does not send the name of the PANTONE color to the printer, you will not be able to use Automatic
PANTONE Calibration. Instead, if you wish, you can convert each PANTONE color manually to CMYK
values in the application, using tables produced especially for your printer and paper type.

If your application has a facility to convert PANTONE colors to CMYK values automatically, it probably
does not take account of printer or paper type, so you will get better results with a manual conversion
using the tables.

You can also obtain a PANTONE calibrated color chart in EPS, TIFF and PDF format, which can be
convenient if your application has an eyedropper tool with which you can pick up colors from an imported
graphic.

Tips

Automatic PANTONE Calibration works with PostScript printers only.

Ensure that Automatic PANTONE Calibration is turned on in the driver.

Some applications may not support PANTONE colors fully; for example, Photoshop 7.0 does not
send the PANTONE Color with its name, it sends only the CMYK values from its standard table.

Some colors may be out of gamut and impossible to match precisely with your printer and paper
type.

Color matching between different HP Designjets

If you print an image on two different printer models (for instance, on an HP Designjet 4020 Printer series
and an HP Designjet 1000 Printer series), you may find that the colors of the two prints do not match
well.

Matching two printing devices that use different ink chemistry, paper chemistry and printheads is unlikely
to be completely successful. The information provided here is the best way to emulate one printer with
another. Even so, the end result may not be a perfect match.

Printing via separate PostScript drivers

The situation is that you are printing on each printer using the PostScript driver installed for that printer.
In this example, we are using an HP Designjet 4020 Printer series and an HP Designjet 1000 Printer
series.

1.

Ensure that both printers have been updated to the latest firmware version. See

Update my printer's

firmware on page 116

.

2.

Ensure that you have the latest printer driver for both printers. You can download the latest drivers
for the HP Designjet 4020ps from

http://www.hp.com/go/4020ps/drivers/

.

3.

Ensure that Color Calibration is turned on. At the front panel of the HP Designjet 4020 series, select
the

icon, then Printer configuration > Color calibration > On .

4.

Load the printers with similar paper types.

5.

Ensure that the Paper Type setting on the front panel corresponds to the paper you have loaded.

6.

Print your image on the HP Designjet 1000 Printer series using your normal settings.

7.

Now prepare to print the same image on the HP Designjet 4020 Printer series.

ENWW

Color matching between different HP Designjets 157

P

rint quality

problems

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