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Showing posts with label Digital Printing. Show all posts
Showing posts with label Digital Printing. Show all posts

Thursday, August 11, 2011

Erasable E-paper Can Be Printed, Erased, Reprinted Over 250 Times (video)

by
from: http://www.treehugger.com/

printable e-paper image
Image via video screengrab

Researchers have created a new e-paper can be printed and erased over and over again, and they hope it can be a reusable solution for the posters and signs printed by the millions for bus stop ads and store front displays.

Reuters reports that the new e-paper, by researchers at the Industrial Technology Research Institute, can be printed with a thermal printer like that used for fax machines. And when it's ready to be erased, one only needs to flip a switch and it's ready to be printed again -- up to 260 times.

The e-paper can produce different colors for more dynamic posters, and doesn't require a backlight. It is different from e-paper devices because it is essentially just the display, disconnected from any device that might update the display. The e-paper is printed with one image, and that's it until it is erased and reprinted. In the past, we've seen researchers excited about replacing paper signs or billboards with e-ink displays that can be updated on a whim, but this e-paper is a closer equivalent to the single-use printed posters we're used to, only they can be reprinted.

The researchers think it is a perfect solution for printing fewer posters and signs; however, it looks like it has a long way to go before it could really be considered a replacement for more colorful paper posters.

The posters still don't have the bright, crisp look that storefronts and advertisers would want. Yet, that could improve with time and already, an A4 sized piece of the e-paper will only cost about $2 -- and when it can be printed up to 260 times, that's quite cheap.

The only question is does a piece of e-paper used 260 times have a smaller footprint and environmental impact that 260 of the same sized printed paper posters? It would be interesting to see the life cycle analysis of the product.

Researchers hope to have the product available for the market within two years. But again, an LCA would be something we'd like to see before considering this a smart replacement for paper.

Tuesday, November 30, 2010

How to use AirPrint with any printer



By: Zach Epstein



Apple’s latest iOS update finally adds AirPrint to iOS devices, bringing wireless printing capabilities to the iPhone, iPad and iPod touch. That’s the good news. The bad news is that in order to use AirPrint, you need a compatible printer. Since very few printers are compatible at this point in time, odds are pretty good that yours isn’t one of them. Don’t worry, though — that’s where hobbyist hackers come in.
If you own a Mac [update for Windows PCs added below] and a printer, you can use AirPrint. In fact, your printer doesn’t even have to be wireless. A simple new hack using an OS X app dubbed AirPrint Hacktivator will enable printing via AirPrint for nearly anyone in a matter of minutes. Hit the jump for a guide that will get you up and running in no time.


1. Download the latest version of AirPrint Hacktivator
2. Unzip the AirPrint Hacktivator to your desktop or Applications folder, then run it
3. Slide the toggle switch in the app to ON, then enter your administrator password when prompted
4. Click OK to confirm
5. Now, go to System Preferences -> Print & Fax
6. Click the minus symbol to remove your printer, then add it back and check the box share it on your network (see video below for instructions)


You’re now ready to use AirPrint from your iPhone, iPad or iPod touch running iOS 4.2 or later. Just remember that your Mac must be on and connected to your network in order for your hacktivated AirPrint to work.

UPDATE: BGR reader Andre just sent us an email to let us know that German blog Macerkopf has an app that will let Windows users hack their PCs to enable AirPrint as well. Check out the translated post for more details and make sure you download the English version of the hack if you want to get in on the action.

Tuesday, May 18, 2010

DuPont's Prints 50-Inch OLED Panel In Under 2 Minutes

DuPont's Prints 50-Inch OLED Panel In Under 2  Minutes

DuPont has excelled where no man has before—demonstrating the first OLED panels to be printed, and in under two minutes no less. Using a Dainippon Screen multi-nozzle printer, they successfully created a 50-inch display.

This is something they've been talking about for years now, so it's pleasing to see DuPont has finally managed to achieve their (rather lofty) goals. The OLED panels have a purported lifetime of 15 years, and will help bring the cost right down if they're able to be created in the time it takes to boil the kettle.

DuPont teamed up with Dainippon Screen, whose printers can squeeze out active molecules within the ink, layering them up between 12 to 15 layers—taking just a second to drop 4 - 5m of ink down. Pretty amazing stuff, and great news for anyone who's ever fallen in love with Sony or LG's OLED panels. [Technology-Review via OLED-Display]


Send an email to Kat Hannaford, the author of this post, at khannaford@gizmodo.com.

Wednesday, April 14, 2010

Skin Cell Spraying Bio Printer Can Heal Burn Victims in Three Weeks

skin cells, cell printer, cell sprayer, burn victims, wake forest,  winston salem, medicine, hospital, medical design, 3d printer

Recently we showcased a 3D printer that creates human body parts ready for transplant, and now our frankenstinean fascination with making body parts has unearthed another amazing device. This new bio-printer sprays skin cells on burn victim’s wounds, promoting healthy recovery. The printer is mounted onto a frame that is wheeled over a patient’s hospital bed. A laser reads the depth and shape of the wound, and with the help of a computer the device sprays a precise layer of skin cells that can heal infection-prone wounds in just three weeks.

The skin-spraying project is being developed by scientists and students at Wake Forest University in North Carolina. They are planning to team up with U.S. Armed Forces Institute of Regenerative Medicine to use the device to help wounded soldiers returning from overseas. The process starts as skin cells are separated and purified. They are then placed in a nutritious solution that helps the cells multiply. They are then loaded into the device, sprayed on the skin in layers and voila! Burns are healed. So far they’ve only tested the process on mice, and they were able to successfully heal burns after just three weeks.

Traditionally the only way to fix severe burn wounds is a skin graft. Skin grafts are highly painful and generally leave huge scars. With this new process scientists include some stem cells in the mix which allows hair follicles and sebaceous glands develop in the new layers of skin. It seems that when the cells are sprayed on the wound they know exactly what they are supposed to do, and they develop as naturally as a your own skin would. Eliminating the mass amount of medical rehabilitation involved in getting burn victims back on their feet by spraying on skin cells will eliminate much of the painful process and cut down on the chemical-based medicines used to help them heal.

Via Reuters

Wednesday, February 24, 2010

Reduce Paper Trash with "Pencil Printer"

The refined Pencil Printer part II comes with detailed explanations and a better understand of saving the environment from paper trash and permanency of Ink! In here we see how the lead shavings feed the cartridge toner and prints effortlessly on paper. Mistakes are easily erased, and once the crappy memo is done with…you can erase all the gibberish and re-use the paper. A true test of erasing skills!

Designers: Hoyoung Lee, Seunghwa Jeong & Jin-young Yoon

You need to a flashplayer enabled browser to view this YouTube video

Pencil Printer by Hoyoung Lee, Seunghwa Jeong & Jimyoung Yoon

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Sunday, January 11, 2009

The Polaroid camera is back, in digital


AP Photo
AP Photo/Bebeto Matthews




LAS VEGAS (AP) -- A strange little ritual used to go along with Polaroid cameras. The shooter would grab the print as it came out of the camera and wave it in the air, as if that would stimulate the chemicals and make the picture appear faster. It didn't. Yet it felt dumb to just stand there, waiting for the picture to develop.

Polaroid stopped making film packs last year, so this little piece of tech culture will soon be just a memory. But just as the film-based Polaroid camera is fading away, along comes its digital replacement.

That's right: Polaroid was set to announce Thursday at the International Consumer Electronics Show that it is introducing a digital camera that produces prints right on the spot. You can even call them "instant" prints, but they take nearly a minute to appear, so they're only as "instant" as the old film prints.

Essentially, the $200 PoGo is a camera that contains a built-in color printer. It produces 2-by-3 inch photos by selectively heating spots on specially treated paper. It has nothing to do with the old chemical Polaroid process, but the prints convey some of the same Pop Art charm: They're grainy and the colors are slightly off, with faces tending toward a deathly blue-green.

The camera is a successor to a standalone printer Polaroid put out last summer, designed to connect to camera phones and digital cameras. When I reviewed it, I noted that if Polaroid combined the printer with an image sensor and an LCD screen, it would be a resurrection of the instant camera. It turns out that's exactly what Polaroid was working on.

Unfortunately, you'll have to wait to get your hands on the camera: Polaroid says it will go on sale in late March or early April.

The camera is a fun product, and people who have been lamenting the death of the Polaroid will find solace in it. Its prints can be peeled apart to reveal a sticky back, which makes them easy to paste on fridges, doors, books, computers, cell phones and other surfaces you want to personalize. For a colleague's going-away party, I took a photo of him, printed out a couple of copies and pasted them on soda cans for an instant "commemorative edition."

The PoGo also has crucial advantages over the old film cameras. You can look at what you shot on the LCD screen, then choose whether you want to print it. You can produce multiple prints of an image, or print something you shot some time ago.

The standalone printer and the new camera use the same paper, which costs $5 for a 10-pack, or $13 for a 30-pack. It's expensive compared to inkjet paper, but about a third of the price of Polaroid film (there are still stocks in stores). No ink or toner is needed.

Despite its high points, The PoGo has the feel of a first-generation product, with noteworthy shortcomings.

As a camera, it's primitive. It doesn't have auto-focus, just a switch for infinity or close-up shots. The resolution is five megapixels, far below that of cheaper compact cameras. Neither of these things matter much for the quality of the prints, which are small and of low resolution anyway, but they do matter if you want to use the digital captures for other purposes.

Like some other cheap digital cameras, there's a substantial lag from the time you press the shutter to when the picture actually is taken, making it nearly impossible to capture action or fleeting expressions.

The prints are narrower than the image captured by the sensor, so you can't print the exact image you see on the screen. Substantial slices are trimmed from the top and bottom of the image to produce the print. In the default shooting mode, the camera doesn't warn you about this effect. You can crop images you've shot, zooming in on parts of them, but there is no way to reduce the size of the image to fit it all on the print.

The life of the rechargeable battery is limited, because of the energy needed to heat up the prints. You can get a bit more than 20 prints on one charge if you do them in one sitting. If you make a print only now and then, you'll get fewer on a charge, because the camera will need to heat up the print head every time. (The old Polaroid cameras didn't have battery problems, because most of them had batteries built into the film packs - a brilliant design. But enough nostalgia.)

None of these flaws are fatal. If you don't like the way the PoGo works as a camera, you can shoot pictures with another camera that uses an SD memory card, then move the card over to the PoGo and print the pictures. But if that's what you plan to use the camera for, you might as well buy the $100 PoGo Instant Mobile Printer, which is slightly smaller. It doesn't take memory cards, but will connect to other cameras with a USB cable.

The camera is much simpler to use than the printer, and it fits the bill for those who want to recapture the simple, spontaneous spirit of Polaroid shooting. Sadly, Polaroid declared bankruptcy in December because of troubles at its parent company. That puts the future supply of PoGo printer paper in question, but Polaroid is still operating, and it appears it will continue for the foreseeable future. In any case, it's likely the portable printing technology will live on, because what it does is unique.

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On the Net:

http://www.thenewinstant.com

More about the PoGo's printing technology: http://www.zink.com

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