|HP 9 ink Colour Printing System|
Ilse Jurriën : July 12th 2005 - 14:00 CET
HP 9 ink Colour Printing System : The HP Photosmart 8750 Professional Photo Printer uses nine HP Vivera Inks in three inkjet print cartridges, including the new HP 101 Blue Photo Inkjet Print Cartridge, to provide great image quality improvements. Not only does the new printer reproduce substantially more of the sRGB colour space (the standard used in most digital cameras and monitors), but the blue hues in common photo subjects are richer and deeper than ever, especially in the mid-tones, where the impact is particularly strong. The 9 inks provide extraordinary printed image detail in contrasting colours and shadows, an extensive range of light and dark shades in every colour, and truly neutral greys and blacks.|
HP Vivera Inks|
HP printers using HP Vivera Inks with HP Premium Plus Photo Papers, offer the best combination of image quality and fade resistance. All elements of the printing system (printer, ink, print cartridge, and paper) are specially engineered to work together for reliable outstanding results. To maintain HP’s worldwide reputation for innovation and consistent excellence, HP’s engineers and ink chemists continuously work to improve the performance of HP products and the quality of your printed photos.
The three inkjet print cartridges
The combination of the HP Photosmart 8750 Professional Photo Printer with the three inkjet print cartridges, filled with HP Vivera Inks, results in an unparalleled combination of image quality and fades resistance. The HP 101 Blue Photo Inkjet Print Cartridge contains light cyan, light magenta, and a new blue ink. The HP 344 Tri-Colour Inkjet Print Cartridge contains cyan, magenta, and yellow inks. And the HP 102 Grey Photo Inkjet Print Cartridge contains dark grey, light grey, and photo black inks. Most photo printing tasks should be performed with these cartridges, but some specialized tasks are best performed with other cartridges, which are sold separately.
Difference between HP 8-ink and 9-ink printing
HP's 8-ink printers also use three print cartridges - the HP 348 Photo Inkjet Print Cartridge, the HP 343 or 344 Tri-Colour Inkjet Print Cartridge, and the HP 100 or 102 Grey Photo Inkjet Print Cartridge. In this arrangement, each of the three print cartridges has three chambers, but both the Photo Inkjet Print Cartridge and the Grey Photo Inkjet Print Cartridge contain a black ink, which enables the system to use eight unique colours. For 9-ink printing, the HP 101 Blue Photo Inkjet Print Cartridge replaces the HP 348 Photo Inkjet Print Cartridge. Both these print cartridges contain light cyan and light magenta inks, but the HP 101 Blue Inkjet Print Cartridge has a new blue ink which replaces the black ink in the photo cartridge. The main difference between these cartridges and between 8-ink and 9-ink printing is the blue HP Vivera Ink in the photo cartridge.
The goal of HP’s colour scientists, chemists, and engineers in designing the new printing system of the HP Photosmart 8750 was to expand the printer’s gamut of colours. The printer’s colour gamut is the set of colours the printer can reproduce and is often represented in a three-dimensional space where the axes are hue (colour value), saturation (the purity of the colour), and luminescence (the brightness or darkness of the colour). HP’s goal is to make the printer’s colour gamut match closely with the sRGB colour space, which is the colour model used by most consumer digital cameras and monitors to record and display images.
9-ink printing matches more closely with the sRGB colour space
In reds and greens, the HP 8-ink colour gamut already surpasses traditional silver-halide photo prints. But the sRGB colour space extends further into the blues than 8-ink printing can reproduce. In order to improve the colour gamut, the obvious solution was to develop a new specially formulated blue ink. With 9-ink printing and the HP 101 Blue Photo Inkjet Print Cartridge, HP has met the goal to extend the colour gamut to match more closely with the sRGB colour space. In essence, with HP's new 9-ink technology it is possible to print more vivid colours which are captured by a digital camera.
New blue HP Vivera Ink
Because it interacts with both the printer and paper, ink is a critical component of any printing system. HP Vivera Inks are carefully engineered to work flawlessly with all parts of the print cartridge, printer, and paper to achieve long-lasting, rich, vibrant colours as well as extraordinary image quality. HP Vivera Inks are a result of years of testing. HP ink chemists design up to a thousand prototype ink formulations that are subjected to hundreds of tests in order to determine how well the ink interacts with the cartridge, the printer, and the paper. More than eighty tests may be conducted on the print attributes of the ink and paper to ensure the highest possible quality results. HP designed its Vivera Inks from the ground up, with unique vivid dyes that provide vibrant colour as well as excellent fade resistance. The new blue HP Vivera Ink is designed to peak in chroma (colourfulness) at a lightness higher than the lightness of the blue made in other printers. This is achieved by combining cyan and magenta inks and allows the printer gamut to match more closely with the sRGB colour space. In addition, the new blue ink is brighter than the blue made by the blending of the cyan and magenta inks.
HP 101 Blue Photo Inkjet Print Cartridge
9-ink printing with the HP 101 Blue Photo Inkjet Print Cartridge provides up to 25% more blue chroma than 8-ink printing. The improvement is obvious in any photo print with intense blues. Outdoor photography enthusiasts will be especially impressed by the vivid blues in their landscapes, seascapes, and sports photos. Blues will look better on any paper, but the best results will be obtained on HP Premium Paper and HP Premium Plus Photo Paper, as HP’s printers, inks, and papers are specially designed to work together to deliver outstanding results.
Smooth colour gradations for virtually grain-free prints
By controlling the amount and combination of ink applied at each print position, smoother gradations can be made between colour tones. Although there are hundreds of millions of ink colour combinations available in HP’s 9-ink system, the most important factor in image quality is the accurate reproduction of colours. The end result of HP’s 9-ink system is exceptional colour accuracy and grain-free prints.
• Virtually imperceptible image grain from the extraordinarily smooth colour transitions possible in a system with a vast range of available colour combinations.
• True-to-life colour accuracy from the large gamut of available colours, including an extensive range of grey and dark tones.
Neutral greys and deep, rich blacks
In addition to studio-quality colour photos, HP’s 9-ink system can create stunning black and white prints. Most other printing systems blend colour inks to make greys. Under incandescent or fluorescent lights, that procedure is obvious as black and white prints can look purple or green. HP’s 9-ink printing uses grey inks to make true neutral grey tones when printing in greyscale mode. In colour prints, neutral tones are consistent and controlled. The grey and photo black inks in the HP 100 Grey Photo Inkjet Print Cartridge and the HP 102 Grey Photo Inkjet Print Cartridge are developed from exclusive HP dyes uniquely blended in different combinations to create exceptional neutral shades of greys and blacks. HP’s grey inks provide extensive greyscale reproduction from the lightest highlights, through midtone greys, to the rich blacks in the darkest shadows. The inks in the grey photo cartridge produce grey tones with consistently smooth transitions from one shade to the next, with significantly less image grain compared to greys made by combining cyan, magenta, and yellow dots on paper. When used in combination with HP Premium Paper and HP Premium Plus Photo Paper, the new grey and black photo inks provide customers with consistently accurate representations of impressive digital photo prints. Black-and-white photo enthusiasts get neutral greys and deep photo blacks with less image grain and more accurate shadow details.
Superior fade resistance
With HP Vivera Inks and HP Premium Plus Photo Paper, HP’s 9-ink printing system produces prints with outstanding fade resistance of 108 years. In addition, photos stored in a photo album resist fading for over 200 years. Thanks to HP’s innovative dye-based inks, the HP 9-ink printing system provides an industry-leading combination of fade-resistance and image quality for prints with the look and feel of traditional photos.
Excellent performance on special paper
Photo-based papers have the look and feel of traditionally-processed photos – for instance, HP’s Premium Plus Photo Paper and HP Premium Plus Paper. In addition to making great prints on HP Photo Papers, the HP Photosmart 8750 Professional Photo Printer produces impressive printed results with a variety of papers. There are at least two reasons for visual arts professionals to be excited about the HP Photosmart 8750 Professional Photo Printer. These are impressive prints on special paper, and the capability of printing on A3+ media (330 x 483 mm). Image permanence is guaranteed with uncoated special paper - on par with traditional silver-halide prints. It is good practice to display prints (particularly prints on coated media) behind glass, in order to exclude air-borne pollutants such as ozone. HP’s 9-ink printing and the wide range of textures and surfaces available from HP’s paper range, offers imaginative artists a rich area of exploration.
HP Photosmart 8750 Professional Photo Printer - Conclusion
9-ink printing, introduced by HP with the new HP Photosmart 8750 Professional Photo Printer, sets new performance standards that professional photographers will find irresistible. The new printer reproduces more of the standard colour space used in most digital cameras and monitors. In addition, the blue hues in common photo subjects are richer and deeper than ever. Printer, ink, print cartridge, and paper are specially engineered to work together for extraordinary printing image detail in contrasting colours and shadows. All four are designed to collaborate and print the full range of light to dark shades in every colour, plus truly neutral greys and blacks. The vivid blues that are captured in a digital photo of a crisp autumn sky or a tropical sea can now be placed on paper and will last for generations, thanks to HP’s 9-ink printing system.