The Media Becomes Soiled When Printed; Color Mixing Occurs - Roland Texart RT-640 User Manual

Attractive Printing is Impossible
P. 62"If Colors are Uneven", P. 70"Refreshing Subtanks (REFRESH SUBTANK)"
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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.

The Media Becomes Soiled When Printed

Are the print heads dirty?
The following may cause ink to drip on the media during printing:
 Buildup of fibrous dust (lint) around the print heads.
 Ink transferred to the print heads due to rubbing against the media.
If this happens, clean the print heads manually. We recommend carrying out periodic print head cleaning.
P. 64"Maintenance that Should Be Performed More Than Once a Month"
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 Excessively low humidity.
Use the machine in an environment of 35 to 65% RH (non condensation).
Are the pinch rollers or the media clamps dirty?
Periodically clean them.
P. 59"Cleaning"
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Do the print heads contact the media?
The height of the print heads may be too low. Also, if the media is not loaded correctly, it may wrinkle or come
loose and strike the print heads.
P. 91"Adjusting Print Head Height to Match Media Thickness"
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Color Mixing Occurs

Has an ink pouch of the wrong color been installed by mistake?
6
As soon as an ink pouch is installed, ink flows out of the ink pouch into the ink path. Therefore, if an ink pouch
is installed incorrectly, ink mixes inside the ink path even if the pouch is removed immediately.
In the event you install an ink pouch of the wrong color, refresh the subtanks. If this fails to resolve issues with
color mixing, contact your authorized Roland DG Corp. dealer.
P. 70"Refreshing Subtanks (REFRESH SUBTANK)"
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114
, P. 116"Media Feed is Not Smooth"