© Copyright 2013 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. The only warranties for
HP products and services are set forth in the express warranty statements accompanying such products and services. Nothing herein should be construed as
constituting an additional warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.
May 2013
when printing black on white. If you are looking for high quality photo or fine art applications it is recommended to consider
the HP Designjet Z series range of printers.
Metallic inks are for some niche applications with normally very low usage, and requires extra maintenance, which makes
this type of application really expensive. On top of that, the shiny effect that you can get with metallic inks is significantly
lost when you laminate the prints and you have to do so because metallic inks are very sensitive to smudging and
scratching.
Q Are the ink cartridges hot swappable while printing?
If an ink supply runs out during printing the printer will pause the print job and display an alert on the front panel. You will
have 30 minutes to install a new supply and will not have to reprint the same job if you replenish within this time frame.
Q Why Latex does not need a lower drop size?
The main reason is that HP Latex technology uses the light inks (lc & lm). This means that dot visibility is comparable to
what you can get with lower drop size and dark inks, as most of our competitors are CMYK only.
Q Why latex has 1200 dpi while solvent have 1440dpi
HP 831 Latex Printheads are native 1200 dpi, in fact solvent printheads are only 180 or 360 dpi maximum. In order to
achieve the 1440 dpi competitors need to use software to interlace passes to form a grid of that resolution. This process
can only be achieved with perfect substrate advance accuracy and is very difficult to manage. Considering they do not have
an optical movement advance sensor it is not always guaranteed that 1440 dpi is being achieved all the time.
Latex Optimizer
Q What does the HP Latex Optimizer do?
HP Latex Optimizer enables high quality at high speed. HP Latex Optimizer consists of positively-charged (cationic)
polymers suspended in a colorless, water-based ink vehicle. It reacts with the ink pigments which are negatively-charged
(anionic) to rapidly immobilize them on the print surface. This produces sharp text and image detail by suppressing
feathering and color bleed especially at high productivity levels.
HP Latex Optimizer also enables the drying and curing process of the HP Latex Inks to operate at lower temperature and to
be more energy efficient, which has the additional benefits of allowing wide media support and reduced power
consumption.
Q Does it cost more to print with latex optimizer?
Typical HP Latex Optimizer usage is around 12% of total fluid (ink + optimizer) usage.
The use of optimizer allows the colored inks to be used more sparingly, and as a result the use of optimizer has no impact
on overall print costs. Results show that the total amount of ink fluid is the same and is not incremental.
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