Oce Arizona 250 GT, Руководство пользователя

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128 Chapter 8 Ink System Management
Arizona 250 GT Ink
Arizona 250 GT Ink
Introduction
The Arizona 250 GT uses UV-curable inks including Cyan, Magenta, Yellow, and
Black. 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.
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. The minimum space/working room
volume for the printer is 69 m3 or 2430 cubic feet.
Note: Read the section on ink safety ( see ‘Safety Guidelines for Ink Materials’ on
page 22 ) before you handle the ink.
The printer is optimized for the specific UV-curable ink supplied by Océ Display
Graphics Systems. The ink is supplied to the printer in 2 liter collapsible bags that
are loaded into the printer by means of quick-change connectors that are bonded into
the top corner. To install on the printer, the bags are inverted and the quick connect
couplers are pushed into their corresponding female coupling. This opens up the
flow path for the ink. The bags contain tags that identifies them to the printer when
they are loaded. This allows the printer to ensure that the correct ink is loaded.
This method of ink delivery has several benefits over bottles or cartridges:
The self-collapsing bags make it easy to see how much ink remains in each bag
without having to reference the user-interface.
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Virtually all the ink is successfully extracted from the bag by the printer, reducing
the otherwise costly waste of usable ink.
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Ink changes are performed without mess or spills, keeping the environment
around the printer clean.
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Ink changes can be performed during printing - this prevents wasted prints and
lost time.
Only qualified inks can be used. If a bag of ink with an invalid serial number, expired
use-by date, incorrect color placement in the ink bay, or if an expired tag is connected
to the printer, then the operator is alerted and an error message is displayed.
The ink delivery system provides the printheads with ink at the appropriate
temperature and pressure. Each printhead has a corresponding ink reservoir on the
carriage. Pumps supply ink to the reservoirs on demand. Float sensors in the
reservoirs control the level of ink and initiate demand when required. Ink
temperature control is achieved by pumping a coolant fluid through the ink reservoir