Oce Arizona 640 GT User Manual page 79

NOTE
Dirty media can affect image quality and reliability of printer output. If you wipe the media with a
tack cloth before printing, it will reduce ink buildup on the carriage underside. The tack cloth
removes static and also removes particles that tend to attract stray ink drops that result in ink
buildup. Tack cloths are used by auto-body shops to clean cars before painting. Océ does not
provide additional tack cloths beyond what is in the Accessory kit. If you did not receive a cloth
or if you wish to purchase additional tack cloths, they are available at local hardware or auto-
oriented stores.
Carriage Collision Recovery
If something on the table is higher than the media (or if the media is thicker than what is actually
set in the print job settings), a carriage collision may occur. If a collision occurs, the carriage will
stop and display a message on the User Interface panel. After the operator clears the offending
media from the table and before the next print is started, printhead maintenance must be
performed (See Printer Maintenance section).
How to Handle Media with Uncured Ink
If the UV ink is not properly cured, wear nitrile gloves when you handle prints. To help ensure
that the ink cures fully, set the UV lamp power as high as possible for the particular media you
are using. This will minimize the risk of skin irritation and sensitization from possible exposure to
uncured ink.
Media Adhesion
Some media have better adhesion quality than others. Factors such as the amount of ink used
and the amount of curing energy from the UV lamps can affect adhesion.
For more information on media adhesion, see Application Bulletin 6 on the customer support
web site.
Media-Related Application Bulletins
For additional information on various aspects of handling and managing media refer to the
Customer Support web site. See Appendix A of this document for a list of available bulletins or
visit the web site to download bulletins:
http://dgs.oce.com/
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-directional using only the
trailing lamp (to do this set the power of the leading lamp to 0).
Océ Arizona 600 Series
Chapter 5 - How to Operate Your Océ Arizona Printer
How to Handle Media
79