Oce Arizona T220 User Manual page 62

Océ | Operating the Arizona T220
Situation
Tips for printing on
difficult media
Use the Diagnostic
Stripe to identify
image problems
Masking off unused
vacuum areas
3-50
Recommendation
Some media may not accept ink well and bleed. Here are some
tips for dealing with difficult media.
1. In some cases a different formulation of the same type of
media might accept ink better than another formulation. E.g. in
general Acrylic Plexiglas accepts ink better than a Polycarbonate
Plexiglas. Also for a media like styrene there are many
formulations.
2. Use a primer coat then a normal coat of ink. Make a copy of
the media profile you are using for the media and reduce the ink
restrictions in the profile to a maximum of 40-60% for each color
(no double strike). Print the primer coat unidirectional, leave the
vacuum turned on, rip the job again with the normal ink
restriction profile and print again. To be safe print the overprint
unidirectional, if doing a large volume of work you could
experiment and try printing the overprint bi-directional.
3. Reduce the ink limits in the profile.
4. Introduce home and away carriage delays to increase the
amount of drying.
We recommend that the optional diagnostic stripe be enabled
from the control panel to print on the away side of the image.
This is a valuable tool to identify the source of image quality
problems.
It is a good idea to mask off any unused area on the table for
active vacuum zones to improve suction of the media. A variety
of scrap materials can be used. One particularly good mask
material is cut vinyl transfer paper that is sticky on one side.
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