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Chapter 5 What to Do If
Printed Results Are Coarse or Contain Horizontal Stripes
Do the print heads show dot drop-out?
Carry out a printing test and make sure no dot drop-out
occurs. If dot drop-out is present, perform head cleaning.
☞ p 44 "Printing Tests and Cleaning"
☞ p 53 "When Head Cleaning Is Not Effective"
Have you carried out feed correction?
Large misalignment in the amount of feed of the media
may result in printing that seems coarse or contains hori-
zontal stripes. Either make the setting on the computer
to match the type of media you're using, or make the
setting for correction on the printer.
☞ p 73 "Performing Feed Correction to Alleviate Hori-
zontal Bands and the Like"
Have you carried out bidirectional correction?
When you are performing bidirectional printing, use the
[ADJUST BI-DIR] menu item to carry out correction. The
optimal adjustment value may vary, depending mainly
on the thickness of the media. Set or select an adjust-
ment value that is suited to the media.
☞ p 69 "Correcting for Misalignment in Bidirectional
Printing"
Are the heating devices at a suitable temperature?
If the ink forms lumps or smudges, raise the tempera-
ture. Note, however, that a temperature that is too high
may degrade the media or cause it to wrinkle.
☞ p 40 "Settings of Preheater, Print Heater and Dryer"
Is the temperature of the room too low?
The heating devices may not warm up sufficiently when
the temperature is 20˚C (68˚F) or lower. Also, even when
the heating devices reach their preset temperatures, ad-
equate effectiveness may not be apparent if the media is
thoroughly chilled. Before printing, allow the media to
come to room temperature.
Is the print mode suitable?
When you are using uncoated media and attractive print-
ing is not obtained even after you have raised the tem-
perature of the preheater or print heater, try using a
higher-quality print mode. Also, using the menu on the
printer unit to make the setting for [SCAN INTERVAL]
may improve printing quality.
☞ p 75 "Printing Hard-to-dry Media"
Depending on the media, smudging may occur when
using a high-quality print mode, and results may also
vary greatly depending on the settings of your RIP pro-
gram (such as the color-profile selection). Make settings
suited to the media you're using.
Is the printer installed in a level and stable location?
Never install the machine in a location where it is tilted
5-2 Attractive Printing Is Impossible
or where it may wobble or experience vibration. Also
make sure that the print heads are not exposed to mov-
ing air. These factors may lead to missing dots or reduced
printing quality.
Is the media loaded and set up correctly?
If the media is not loaded and set up correctly, media
feed may not be smooth, or printing may be adversely
affected.
☞ p 95 "Media Wrinkles or Shrinks, or Feed Is Un-
stable"
Colors Are Unstable or Uneven
Did you shake the ink cartridges gently before in-
stalling them?
Before you install a new ECO-SOL INK cartridge, gently
shake the cartridge.
Is the media wrinkled?
If the media is wrinkled and comes loose from the platen,
colors may be uneven or printing reduce may suffer.
☞ p 95 "Media Wrinkles or Shrinks, or Feed Is Un-
stable"
Was printing paused partway through?
When printing is paused, the coloring at the seam may
be altered when printing resumes. Avoid pausing print-
ing. With the factory-default settings, printing pauses
when an ink cartridge runs empty. Before you perform
lengthy printing, check the amount of ink remaining in
the ink cartridges.
Printing may also pause when data is not sent from the
computer quickly enough. We recommend not perform-
ing any other tasks with the computer while printing is
in progress.
Are the operating parameters set to appropriate
values?
Depending on the settings for such menu items as [FULL
WIDTH S] and [PERIODIC CL.], uneven colors may oc-
cur. If the settings have been changed, try restoring them
to their default values.
☞ p 76 "Speeding Up Printing for Narrow Media"
☞ p 77 "Keeping Media from Being Soiled by Ink
Drips"
Is the printer installed in a level and stable location?
Never install the machine in a location where it is tilted
or where it may wobble or experience vibration. Also,
ensure that the printing heads are not exposed to wind
or blown air. These factors may lead to missing dots or
reduced printing quality.