Attractive Printing Is Impossible; Printed Results Are Coarse Or Contain Horizontal Stripes - Roland Texart RT-640 User Manual

Attractive Printing is Impossible

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. 45"Printing Tests and Normal Cleaning"
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Are the settings for the [PRESET] menu item appropriate?
If the settings selected with the [PRESET] menu item are not suitable for the type of media, printing may be
adversely affected. Choose settings optimized to the media you're using.
P. 39"Setup of Media"
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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
adjustment value that is suited to the media. When further correction is required, such as when adjustment
made using [SIMPLE SETTING] does not enhance printing results, use [DETAIL SETTING] to carry out correction.
P. 88"Correcting for Misalignment in Bidirectional Printing"
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Printing More Precisely"
Have you carried out feed correction?
Large misalignment in the amount of feed of the media may result in printing results that seem coarse or
contain horizontal stripes. Either make the setting in the software RIP to match the type of media you are
using, or make the setting for correction on the machine.
P. 89"Alleviating Horizontal Bands (Feed Correction Function)"
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Is the print head height appropriate?
Printing when the [HEAD HEIGHT] menu item is set to "HIGH" produces coarser printing results than when set
to "LOW." Keep this set to "LOW" except when changing it is necessary, such as when you are using thick media.
P. 91"Adjusting Print Head Height to Match Media Thickness"
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Is the print mode suitable?
Try a higher quality print mode. Depending on the media, smudging may occur when using a high-quality
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print mode, and results may also vary greatly depending on the settings of your software RIP (such as the
color-profile selection). Make settings suited to the media you are using.
Is the media loaded correctly?
If the media is not loaded correctly or media feed is not smooth, printing results may be adversely affected.
Load the media correctly.
P. 18"Loading Media"
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Is the machine 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
make sure that the print heads are not exposed to moving air. Failure to do so may cause dot drop-out or
adversely affect printing results.
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, P. 61"When Normal Cleaning Is Not Effective"
, P. 86"Fully Utilizing the Preset Function"
, P. 89"Correcting for Misalignment in Bidirectional