Photoret
From Wikipedia, the free encyclopedia
Photoret is an HP inkjet technology.
HP PhotoREt technology is a process of layering multiple drops of ink in each dot to produce photo realistic printed output. This technology has been incorporated into HP's ColourSmart driver software. There are four versions of the PhotoREt technology.
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[edit] PhotoREt I
[edit] PhotoREt II
[edit] PhotoREt III
HP's PhotoREt III was released in 2000 and is available with products using the HP C6578D ink cartridges (except for the HP Business Inkjet models). Photo Quality as good or preferable to a traditional photograph is achieved through HP's next generation PhotoREt III Precision Technology. PhotoREt III accurately places the highest number of tiny drops at the highest firing frequency of any Inkjet printer with no compromise in speed. HP PhotoREt III uses tiny drop sizes (five picolitres) and precise algorithms to place up to 29 ink drops per dot, generating a wider range of directly printable colours (over 3,500 colours per dot). HP is the only manufacturer that can fire these tiny drops in all modes and on all papers with no compromise in firing frequency.
[edit] PhotoREt IV
HP PhotoREt IV uses six ink colours and very tiny drop sizes (four - five picolitres at 18kHz) and precise algorithms to place up to 32 ink drops per dot, generating a wider range of directly printable colours (over 1.2 million colours per dot). This allows up to 289 levels of shades of colour to be produced rather than the one - eight shades of printers not using PhotoREt technology. The drop size is so small that it is nearly invisible to the human eye. Any HP product that can utilize the HP 58 ink cartridge is PhotoRET IV capable. PhotoREt IV capable products print at PhotoREt III capabilities when the HP 56 black ink cartridge is installed instead of the optional HP 58 photo ink cartridge.
