Printing technology could deliver 1,000 pages a minute
Monday, June 4th, 2007Imagine a bookstore that prints your purchases while you settle the bill or a personalized newspaper that contains only the news you want to read. Such expedient printing may soon become a reality using a new Israeli technology that will enable printing 1,000 pages a minute at affordable prices.
Two researchers from The College of Judea and Samaria - Moshe and Nissim Einat - have developed a revolutionary printing technique called Jetrix, which enables simultaneous high- speed printing of an entire page of text. The technology combines printing and Liquid Crystal Technology (LCD) methods to make a page-sized printing array that emits ink instead of light.
Following on from our Story today about Epson’s new print head, these Israeli scientists have developed a technique which prints a whole page at once, and has a theoretical print speed of 1,000 pages per minute.
Early printers used a continuous jet of ink to print on pages but were later replaced by modern Drop On Demand (DOD) printers in which a traveling head of tiny nozzles squirts ink at the page. The dots combine to produce the desired print. Current printers use a single print head that scans across the page but mechanical and physical limitations present a range of barriers that cap print speeds.
Combining a multitude of ink nozzles together into larger print heads is complex and fraught with technical difficulties. Einat’s solution is a matrix of printer heads fed by multiple ink chambers. With a matrix as large as the page, each head is fired only once per page allowing a much longer relaxation time and negating the need for a scanning head.
So far Einat has made a matrix of 12 x 12 centimeters that demonstrated the theory is sound and that the capillary action is fast enough to keep the nozzles supplied with ink. Despite its size the prototype matrix contains 57,600 nozzles, so small that the delicate capillaries and nozzles were created with the same processes used to manufacture computer chips. The print head works only in black and white but Einat is confident that it can be adapted for color printing too.
HP, with their new ‘Edgeline’ technology which uses a row of print heads right across the page so that a whole line of text is printed at one time are now offering professional level inkjet printers which will compete with Laserjet printers for speed and quality of output.
We are living in interesting times with printing techology moving forward faster than ever













