Faster printing, Color calibration, Color – HP Designjet L25500 Printer series User Manual

Page 51

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3.

Too little ink: The whole chart looks washed out.

Try increasing the amount of ink in your RIP software, then reprint the chart and check again.

NOTE:

Backlit and some fabrics substrates usually require to be used with the “High Ink Limit” option

enabled in the RIP.

Faster printing

The obvious way to increase speed is to reduce the number of print passes, although this will tend to
reduce print quality. Bear in mind the following considerations.

With fewer than 10 passes, you may see an increase in grain.

With 4 or 6 passes, the printer is more sensitive to substrate advance problems.

With 4 or 6 passes, you may need to reduce the ink quantity to improve print quality.

If you are using the high ink level option, you must use at least 10 passes.

As you reduce the number of passes, the best curing temperature may be more difficult to find,
and may be more sensitive to the ambient temperature and humidity.

Here are some other suggestions for increasing the speed of printing.

Concatenating prints saves time, because one can be sent while another is being printed.

Disable the cutter. With most substrates, this saves some time at the end of the printing process.

Increase the cool-down curing temperatures. This also saves some time at the end of the printing
process, but may cause slight substrate deformation, depending on the substrate.

See also

Printer states on page 69

.

Color calibration

The purpose of color calibration is to produce consistent colors with the specific printheads, inks and
substrate that you are using, and in your particular environmental conditions. After color calibration, you
can expect to get identical prints from your printer on different occasions.

Color calibration can be launched from your RIP software; see your RIP documentation for details.

ENWW

Color calibration

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