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
