The Media Becomes Soiled When Printing - Roland VersaEXPRESS RF-640 User Manual

Attractive Print Result Is Impossible
Did you shake the ink cartridges gently before installing them?
Shake new ink cartridges gently before you install them.
Is the media wrinkled?
If the media is wrinkled and comes loose from the platen, colors may be uneven or print result may be ad-
versely affected.
 P. 110, "Media Wrinkles or Shrinks"
Is nothing printed for an extended period?
If nothing is printed for an extended period, color may be uneven and unstable, i.e. darkness or brightness is
different though the same data is printed with the same settings. In that case, perform the light choke cleaning.
 P. 56, "When Uneven Color Issue Occurs"
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. These factors may lead to dot drop-out or
reduced print quality.

The Media Becomes Soiled When Printing

Are the print heads dirty?
The followings 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 the periodic cleaning of the
print heads.
 P. 58, "Maintenance that Should Be Performed More Than Once a Month"
 Too Low Humidity.
Use this machine in the environment of 35 to 80 % RH (non condensation).
Are the pinch rollers or the media clamps dirty?
6 Periodically clean them.
 P. 53, "Cleaning"
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. 87, "Adjusting Print Head Height to Match Media Thickness"
 P. 110, "Media Feed Is Not Smooth"
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