Enww 171 – HP Latex 360 Printer User Manual

Page 177

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Problem

Parameter

Change

Possible side-effects

Vertical banding in low-to-medium
area fills

Align printheads

Ink limits

Increase

Inter-path delay offset

Increase

Slower printing

Vertical correction

Activate

Grainy aspect

Take-up reel (360 only)

Use

Number of passes

Increase

Slower printing

Modify the print queue

Avoid printing difficult jobs (using a lot of ink) at the
beginning of the queue

Roll-back tension

Increase

Grain and/or horizontal banding
may appear if too high

Warm up printer

Activate in RIP

Delays the start of printing, without
reducing printing speed

Coalescence graininess in low-to-
medium area fills

Align printheads

Ink limits

Increase

Inter-path delay offset

Increase

Slower printing

Modify the print queue

Avoid printing difficult jobs (using a lot of ink) at the
beginning of the queue

Warm up printer

Activate in RIP

Delays the start of printing, without
reducing printing speed

Efficiency mode

Activate

Reduced color gamut, graininess

Number of passes

Increase

Slower printing

Optimizer level

Increase

Reduced gloss in dark area fills.
With some substrates, may have no
effect on coalescence.

Dirty roll or defective coating

Consider trying a new roll. Some substrates deteriorate
during long periods of storage.

Graininess, color misregistration or
lack of sharpness

Align printheads

Vertical correction

Remove

Clean substrate-advance sensor
(360 only)

Calibrate substrate advance

Black areas look hazy or image
gloss is not uniform

Modify color separations and dark
color generation

Number of passes

Increase

Slower printing

Curing temperature

Decrease

Less durability (smudges), oily finish

Bleeding between inks or wicking
into white areas

Align printheads

Align optimizer manually

If necessary, load a self-adhesive vinyl to achieve good
alignment

Ink limits

Decrease

Reduced color gamut

Optimizer level

Increase

Reduced gloss in dark area fills.
With some substrates, may have no
effect on bleeding or wicking.

Clean optimizer printhead

ENWW

171

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