Showing posts with label printing technology. Show all posts
Showing posts with label printing technology. Show all posts

Wednesday, May 07, 2008

IPods, Printing and the Inquisition


IPods, Printing and the Inquisition
Posted by Rupert Goodwins
An enduring question: what happened to Islamic science and philosophy? In early and mid medieval times, it was the best on the planet: any system of knowledge that encompasses algorithms, Algol and alembics gets my vote. But as the West clicked into overdrive, the Islamic traditions calcified and reversed; by the end of the 19th century, the Ottoman empire had gone rotten and collapsed under the pressure of expansionist Europeans and internal reformists. (Final outcome: to be decided.)

One of the more compelling arguments for this sea change is differing attitudes to the moveable type printing press. Although the technology certainly had its problems in the West - publishers still get burned these days through bad decisions, but not quite as literally as before - it became one of the major tools of reformation, gradually unhooking the fingers of church and state from the throat of those with other ideas. It was the primary tool of the Enlightenment.

Over in the Arabic-speaking world, the story was different. The printing press turned up, but failed to make much of an impact: as a result, documents of all kinds remained rare, expensive and tightly controlled. (It's probably wrong to say, as some have, that there was thus no reformation in Islam; Islam is, at least theoretically, non-hierarchical and eschews the sort of church structure that characterises Roman Catholicism. But that really is another story). From my reading, I thought that this rejection was due to a combination of suspicion at what might happen and a much better piece of good old-fashioned guild-style market control by the existing scribes than the Europeans managed.

Not so, says a (beautifully illustrated) article in Saudi Aramco World. The piece argues that the real reason was calligraphy: written Arabic, although composed from 28 basic letters much as is Latin script, is always joined up - with each letter having four ways to join to its neighbour, and each two-letter combination having its own unique shape. Moreover, the choice of which option to take was dictated by ineffable rules of beauty known only to the calligrapher, who choreographed his (oh yes, definitely his) words like so many dancers.

The mathematics of trying to combine all this with moveable type simply defeated the early printers, says the magazine, and the results were so clumsy and crude that the technology was rejected - quite rightly - as unsuitable to the task.

Now, it's true that early European printers managed to get their style together very early on, certainly comparable with hand-written script: did this help acceptance? Hard to argue that it didn't: the Gutenberg Bible went to great lengths to replicate the look of existing manuscripts. But as soon as the press got out into mass production, the quality went through the floor. Take a look at 16h and 17th century pamphlets, and you'll see all the horrors that DTP visited upon us in the 1980s. Nobody seemed to mind much.

But then, it's also true that there are cultural aspects of Arabic that just don't exist for European languages: it could well be that reading badly set Arabic is far more like having your eyeballs sandpapered than the effects of anything you could torture out of Ventura Publisher. And while it's certainly more agreeable to blame cultural lacunae on untransgressable beauty instead of reactionary conservatism, there's no doubt that Arabic is far more complex to set than the latinates.

Let's stay in the 1980s, and the arrival of another new world-changing technology: the microprocessor. It deals in the lingua franca of mathematics, of data represented as 1 and 0. If any rising tide should float all cultural boats, this was it: but apparently not. According to a pseudonymous post by "GT" on their Gatunka blog, the Japanese did remarkably badly from the early days of 8-bit microprocessors. (GT says they are a technical translator working in Japan: certainly seems to know their onions). While the West was busy enjoying the first wave of cheap word processors and general-use computing, the intricacies of entering and displaying Japanese ideograms were simply beyond what that technology could do. You could build a games console, where the few bits of Japanese you needed were represented as bitmaps alongside the rest of the game's graphics, but for text editing on a computer? Forget it. By the time cheap computer technology was up to the job - around 2000 - the West had had general purpose computers at home for long enough for them to have evolved into the central hub for an entire economy. The iPod makes no sense without a home PC: thus, argues GT, the Japanese could not have invented it. That's why Sony got stuck at the Walkman.

Obviously, the social, political and economic implications of being a bit behind with your iPods are substantially different to thoseof abandoning the printing press and the Enlightenment. But both stories illustrate how sensitive technology is to the culture in which it arrives - and how hard it is to avoid naïve assumptions about the interactions between the two (you listening, Negroponte?).

It's particularly important to bear these things in mind if you're an English-speaking jourmalist, finding oneself gifted with the most generally applicable language and (no coincidence) the most advanced technology on the planet. What else am I missing?

Tuesday, June 05, 2007

Israeli printing technology could deliver 1,000 pages a minute

Not everybody knows everything, so use everything you know."
Unknown



Israeli printing technology could deliver 1,000 pages a minute
By Stuart Winer
http://www.israel21c.org/bin/en.jsp? enZone=Technology&enDisplay=view&enPage=Blank Page&enDispWhat=object&enDispWho=Articles^l167 3

Imagine 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.

"We are reducing the limitations of printing heads," explains Moshe Einat, senior lecturer at the college's Department of Electrical and Electronic Engineering.

Einat's inspiration for rethinking print methods came from flat-screen display technologies. In the past display screens used a cathode ray tube to 'scan' the picture across the screen similar to the way a printer fills a page with text. With LCDs a screen-sized array of light emitting diodes creates the displayed picture and simultaneously changes to display each new image. Einat posed the question whether the same concept could not be applied to a printed page?

"If you can do it with light, why not with ink?" he asked.

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.

The key to the new technology is the way ink is fed to the print head. The Jetrix print head has no manifold and is comprised of segments containing micro- reservoirs of ink each connected to just a few nozzles. Each segment only provides ink to a few local nozzles making the segments autonomous.

With no direct connection between the different segments the matrix size can be increased without limit creating a print head as large as the paper.

"You can make a matrix of as many segments as you want," Einat told ISRAEL21c. The result is simultaneous printing of the entire matrix on the page. Released from the limitations of relaxation times and mechanical scanning high print speeds can be achieved without a loss in quality.

In Einat's view, the idea is more than just an innovation; it marks a turning point in core technology for printers. In the past print speed was limited by the rate at which ink could be transferred from the ink source to the page. The Jetrix head removes that barrier and the limiting factor will now become another part of the print process, such as the rate at which paper can be supplied to or output from the printer, or the time it takes the ink to dry on the pages.

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.

Development has cost $140,000 funded by Israel's Industry and Trade Ministry and 'angel money'. Costs are kept low because much of the technology is based on existing LCD know-how, a fact that will also keep down the costs for full-size working printers. Current top of the range printers used to print bank statements and utility bills are able to print over a thousand pages a minute but the room-sized printers can cost over $100,000 a piece.

Einat predicts that a simple printer using his technology should be far more affordable, and even within the budget of home users. Such flexible and expedient printing has a wide range of applications.

"Anything that is printed today can be done with it," Einat says.

Rapid printing could lead to a variety of 'on demand' printing products. Bookstores could print books as the customer waits, and at 1,000 pages a minute, the wait wouldn't be very long. Printing on demand would make significant savings for publishers that today often see 40 percent of books remain on the shelves in stores.

'They could print right there in the shop, fresh off the press,' says Einat who also envisions vending machines at airports printing books for travelers as they wait to board a flight.

The print method may also give a new lease of life to newspapers and magazines that are losing customers to Internet-based media. A press could run off thousands of personalized newspapers that contain only the news topics that interest each individual reader.

The Jetrix print head was first presented publicly at the Global Entrepolis Singapore in 2006 and since then has been generating broad interest from the print industry. Several global printer companies are keeping a keen eye on developments with the expectation of a full-working printer. In the meantime Einat plans to build an even larger prototype before moving on to a full-size working printer.

Should the technology prove itself, it may also expand into other industries. Einat theorizes that the same principle could be used to print microcircuits, which would revolutionize that industry, although he concedes that at the moment, that is still a long way off.