HP designjet l65500 Manuale

Ensure that the substrate is not skewed. If there is any skew, reload the substrate to correct it.

Check the carriage beam position. If it is high and the substrate type doesn't require a high position,
lower it.

If the problem persists, realign the printheads.

If the problem persists despite automatic printhead alignment, try manual printhead alignment.

If the misalignment appears at the sides of the substrate but not in the center, you have a problem
of substrate expansion.

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If you are using a plastic substrate, recreate the substrate preset, decreasing the curing and
drying temperatures as much as possible.

●

If you are using a porous, paper-based substrate, recreate the substrate preset, increasing
the drying temperature as much as possible.

●

Some substrate types (especially paper-based substrates) may expand because of the
ambient temperature and humidity. Try using a higher-quality substrate that is less sensitive
to temperature and humidity.

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If you see the problem in printed black text, check in your application or in the RIP that the
text color is pure black and does not contain other colors.

Check that you are printing on the correct side of the substrate.

Make a diagnostic print and adjust the substrate-advance setting.

If the problem persists, align the printheads.

If the graininess is more visible in dark or saturated colors (coalescence):

ENWW

The print is grainy

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