Oce Arizona 550 GT, User Manual

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Arizona Printer Inks
Introduction
Océ Arizona printers use two types of UV-curable inks, referred to as Océ IJC255 and
Océ IJC256. Both inks are easy to maintain, requiring daily maintenance with a vacuum
suction device and a weekly physical cleaning (swabbing). The newer Océ IJC256 inks
also require small jetting actions (“spitting”) between printing times to keep the printheads
in a ready-to-print state. This spitting action amounts to very little ink usage but does
require that the user clean the maintenance tray covers more frequently. Both type of ink
include Cyan, Magenta, Yellow, Black, and for printers with the option installed, White.
Due to the UV curing technology, the ink dries immediately, but can take up to 24 hours
to cure fully. In most cases, the printed material may be handled or cut directly after
printing.
When printing with the Océ IJC255 compared with the Océ IJC256, imaging results
will be different, – not better or worse but always different. Océ IJC256 has lower dot
gain characteristics than Océ IJC255. As a result, there is the potential for more structure
and streaking in solid colors and for more image artifacts in areas of heavy coverage (dark
colors) with the new formulation. This is especially apparent on many paper-based media
used for most indoor applications such as foam board, corrugated cardboard, card stock
and poster paper. Océ IJC256 inks also have a softer surface when cured and printed
materials are less scratch and smudge resistant. Océ IJC256 inks feel slightly “tacky“ when
cured and have a more satin finished appearance when compared to the semi-gloss finish
of Océ IJC255 inks. This can be a benefit to distant-viewed applications where glare,
caused by the semi-gloss finish of the original Océ IJC255 inks, can be a visual distraction.
This particular characteristic is highly subjective and will be appreciated by some customers
but not all.
For more details on the characteristics of the two ink types and comparisons of their fea-
tures, see Application Bulletin 28 - "Selecting Appropriate Océ Ink for Your Applications:
Océ IJC255 or Océ IJC256" on the customer support web site at www.dgs.oce.com/.
These inks have very little odor, but for optimal safety some ventilation is needed. The
printer should operate in an area where a good standard of general ventilation is available
at 5 to 10 air changes per hour. Mechanical ventilation must be added where the air
changes are under 5 per hour. Refer to the Site Preparation Guide for minimum
space/working room volume for the printer.
Note:
Read the section on ink safety called "Safety Guidelines for Ink Material" before you
handle the ink.
Chapter 9 - Ink System Management 198
Arizona Printer Inks