Oce Arizona 200 GT User Manual page 98

How to Handle Media
Thermal Expansion of Media
When imaging on media that will expand when subjected to heat (e.g., styrene or Plexiglas,
etc.), don't wedge the media by butting other material against it as this may cause the
media to buckle. Also if multiple pieces of the media are used, allow enough space between
the pieces to allow for thermal expansion. Placing tape on the table prior to laying down
the media will prevent ink from being imaged onto the table. Finally, if you overprint
on media that expands when heat is applied, we recommend that you group the desired
image with a preceding image so the printer is a consistent temperature when starting to
print the desired image.
Thermal Deformation of Media
Some heat-sensitive media may deform when subjected to high heat. If this occurs you
can reduce the lamp power from the default setting of 7 to find a compromise level that
allows the ink to cure but does not warp the media. You can also try to print uni-direc-
tional using only the trailing lamp (to do this set the power of the leading lamp to 0).
Media Registration
Media can be registered on the table using the table rulers. These rulers are printed on
the table and provide a horizontal and vertical rule that originate from the 0,0 print origin
point on the table. The rulers can also help to provide offset distances if you need to start
a print away from the origin point.
Alternately, the media registration cards can be used to register media if it must be
placed consistently away from the table rulers. These PVC adhesive-backed card can be
placed anywhere on the table to set new coordinates for print origin to enable consistent
registration of media in that location. Make sure that you set the offsets to match the lo-
cation of the cards. Note: these cards can be stacked, but if more than two of them are
stacked, the carriage will collide with them if you print at zero media height. Always check
the height if you use multiple stacked cards so that they match the height of your media
and the set the carriage height accordingly.
98 Chapter 5 - How to Operate the Océ Arizona 200/250/350 GT