Hewlett-Packard's pigment ink for desktop large format printers-HP 970/971 pigment ink, is designed for HPOfficejetProX series printers. Since this is a sheet-fed printer, you can spit a few drops of ink into the ink bowl under the paper path during paper change to reduce the impact of opening the cover. HP R & D engineers and chemists need to extend the cover opening time to about 10 minutes to meet the production requirements of large-format applications. They applied the knowledge they learned from the HPOfficejetProX series printers and formulated a new generation of ink: HPPageWide pigment ink. After ejecting a drop of ink, the film-forming agent in the ink quickly moves to the meniscus, forming a vapor barrier to reduce water loss. Compared with the ink without film-forming agent, the formation speed of the stick plug is reduced by ten times.
This can maintain the physical properties of the ink longer to ensure the reliability of ink droplet ejection. This film-forming agent has an important characteristic, it does not hinder ink droplet ejection. As the ink is ejected from the nozzle, the film it forms will break, and then the meniscus will extend to become the leading edge of the ink droplet.
When the print head is opened for a long time, another method used by HP printing system engineers to ensure the reliability of ink droplet ejection is to eject ink onto the paper. If the nozzle is idle for more than the specified time, it will automatically eject ink onto the paper. To update the ink in the nozzle.
HPPageWide large-format printing technology combines low inkjet rate with the physical properties of HPPageWide pigment ink to achieve stable operation. At the same time, due to reduced ink consumption for maintenance and longer ink usage, the number of ink cartridges that need to be recycled is reduced accordingly, reducing production costs.
HPPageWide pigment and ink prints are dried immediately after output, and can be processed immediately without stains when they are touched by hands. The built-in dryer can maximize the production efficiency, and is also very useful for papers with low water absorption.
HPPageWide pigment ink can quickly penetrate the paper with strong water absorption, reducing the need for drying.
In OnePass printing, large-format printing inks must have a wide color gamut and high black optical density. On HP heavyweight coated paper, HPPageWide pigment ink can print 1.7KOD and 430,717 CIELAB units of color.
In addition, HPPageWide pigment inks use pigments to achieve high durability. The special polymer binder in the ink forms a hard protective film on the paper surface to keep the pigments stationary and improve the ability to resist highlighter application.
On low-cost plain paper, HPPageWide pigment ink can print high-color and black-saturated prints at a low level of ink coverage, reducing production costs. These help to extend the life of the print head.
HPPageWide pigment ink printing technology provides the foundation for current and future solutions, enabling high-speed, reliable, stable, and affordable printing on a variety of paper sizes and types. These solutions are scalable in design and performance, and can meet a variety of office, commercial, and industrial printing needs.