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Color Gamut
Roland
was the first to offer pigmented inks with an exceptional color gamut. Though
Roland offers both dye and pigmented aqueous inks, Roland pigment inks have a
wider color gamut compared to other pigment inks currently on the market and have
a gamut comparable to many dye-based inks. The diagram shows Roland pigment inks
(Cyan lines) vs. a commercial SWOP standard (Magenta lines). Roland pigment
inks are available in two options - CMYK + Orange and Green inks to simulate over
97% of PANTONEŽ Colors or CMYK + Light Cyan and Light Magenta inks for photographic
quality and smoother gradations in pastels, shadows and skin tones. Roland dye
inks are available in CMYK + Light Cyan and Light Magenta for indoor or short-term
outdoor applications. Stability
Traditionally, there have been two inks available on the market - dye and pigment.
Dye-based inks have been very bright but are not suitable for outdoor or light-sensitive
applications due to quick fading. Roland pigment inks were developed to provide
UV stability in outdoor applications. Roland inks use pigment particles (or chromaphores)
that are suspended in an ink carrier fluid at higher concentrations than most
thermal inkjet inks - yielding a wider color space. Roland pigment inks
changed the perception that only dye inks offer vivid colors. Now you can have
the best of both worlds. Bright inks with an exceptional color gamut coupled with
UV stability and exceptional light fastness. An added benefit is incomparable
indoor stability. Ongoing tests at Wilhelm Research indicate over 100 years indoor
print permanence with Roland pigment ink printed on the Hi-Fi JET or CAMMJET.
Roland is working in conjunction with Avery-Dennison to develop a warranted
solution for outdoor applications to be introduced later this year. Ease
of Use Roland
inks are packaged in 220ml cartridges as an alternative to messy bulk ink systems.
The cartridges insert easily into the Hi-Fi JET or CAMMJET to provide a clean,
airtight seal to the ink delivery system on the device. The Roland cartridge delivery
system means that there's no mess refilling cartridge containers and no debris
can enter the ink delivery system or the print heads. Ink cartridges are self-sealing
and can be removed and reinserted at a later time. Piezo inkjet head
technology is exceptionally ink efficient, using as little as 0.3 ml per square
foot of printing at normal coverage. In addition, all Roland printers
monitor ink usage. There is a submenu function - which can be accessed at any
time - for checking ink levels. More importantly, when the CAMMJET or the Hi-Fi
JET senses a low ink cartridge, the printer can be set to finish the job and then
pause or to pause immediately and chirp to indicate a nearly empty ink cartridge.
The LED display will show which cartridge needs to be changed. Unlike other wide-format
printers, once a Roland cartridge is replaced, printing will resume where it left
off with no deviation in the final print. Ink/Media
Calibrations Whether you use CMYKOG, CMYKLcLm, or dye CMYKLcLm,
Roland has ink and media ICC calibrations for the different resolutions. The ColorChoiceŽ
software that comes with each Roland inkjet printer has built in ICC profiles
for every Roland media. These preset calibrations take ink load levels, color
gamut of the inks, the white point of the media and many other factors into account
to insure accurate color reproduction. Simply choose the ink/media combination
that is right for your application and you can be confident of "Getting it right
on a Roland." Ink Optimization
The Hi-Fi JET and CAMMJET have been optimized specifically for these ink sets.
Ink viscosity, pigment concentration, firing rate, droplet size and firmware specific
calibrations are all important elements in determining printer/print performance.
Roland engineers have taken these factors into careful consideration to insure
the highest possible output quality using Roland inks and Roland media.
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