Operator Guidelines For White Ink And Varnish - Oce Arizona 400 Series GT User Manual

Operator Guidelines for White Ink and Varnish

Operator Guidelines for White Ink and Varnish
Introduction
This chapter is necessary only if you have a printer with the white ink or varnish option.
This includes the Océ Arizona 460 GT/XT and the Océ Arizona 480 GT/XT (the 440
GT/XT does not support varnish or white ink).
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Océ Arizona 440 GT/XT
Océ Arizona 460 GT/XT
Océ Arizona 480 GT/XT
Managing White Ink and Varnish
Varnish does not require any special handling and regular printhead maintenance is ade-
quate. White ink is re-circulated in the system to limit any settling of the ink. For this to
take place, the printer must be left powered on at all times. Regular maintenance is
required to keep the white printheads functioning properly.
Note that white ink may require additional purges.
Before you begin
If your printer includes the white ink or varnish option, all ink bags must be present and
all must contain ink or varnish in order for the printer to function properly.
Attention:
Daily maintenance is important even when white ink or varnish are not being actively
used. Failure to perform daily maintenance can result in nozzle dropouts or even printhead
damage. The purpose of maintenance is to clean the nozzles of the printheads and thus
ensure better image quality and avoid banding and other print quality issues.
More maintenance is required in dusty environments, or when there are fibres protruding
from the media, or when printing on reflective media such as glass or metal (more reflected
UV light hits the printheads). A dirty or dusty environment is harmful to the printheads
because particles can plug the nozzles and result in poor image quality. Avoid close
proximity to routers and other sources of dust and debris. Also avoid placing your printer
close to solvent pprinters as the fumes can have a negative effect on the printheads.
142 Chapter 9 - How to Work With White Ink and Varnish
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