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RITI Printer Uses Your Coffee Grounds For Eco Ink

Jason S. writes to tell us that for those seeking to "go green" or those just wishing to try something different, RTI now offers a printer that uses coffee instead of ink. In addition to recycling your grounds, the printer also uses good old fashioned elbow grease to move the grounds cartridge back and forth, saving power. Sounds like a novelty that will die quickly as human sloth reasserts itself. "Hosted by Core77 and Inhabitat, this year's Greener Gadgets Design Competition resulted in an incredible crop of innovative consumer electronics designs, and we're excited to offer you the first scoop on some of our favorite designs! Jeon Hwan Ju's RITI printer works by replacing environmentally un-friendly inkjet cartridges with the dregs from your daily coffee. Simply place used grounds in the ink case, insert a piece of paper, and move the ink case left and right to print text."

184 comments

  1. Supply by MrEricSir · · Score: 4, Interesting

    With the amount of coffee I drink, the entire building would have an supply of used coffee ground ink.

    --
    There's no -1 for "I don't get it."
    1. Re:Supply by Anthony_Cargile · · Score: 4, Funny

      Same here. Make one that can do this AND turn empty red bull cans into paper, and I'll never worry about my printer again (Once I write the drivers, more than likely.)

    2. Re:Supply by queenb**ch · · Score: 1

      Maybe now I can justify the cost of the coffee and coffee maker in our budget.

      2 cents,

      QueenB.

      --
      HDGary secures my bank :/
    3. Re:Supply by cheftw · · Score: 1

      My God!
      Either you are really efficient with the beans or must tell me where you buy your coffee because that's extremely good value.

      --
      Always back up, never back down. ---- Think you're cool 'cos your uid is prime? Take mine, modulo the one digit integers
    4. Re:Supply by Beorytis · · Score: 1

      If you have any left over, just convert it to biodiesel!

    5. Re:Supply by Anonymous Coward · · Score: 1, Funny

      right, but you'd only get a week of free ink + elbow grease before BOOOOOOOM your heart explodes.

    6. Re:Supply by drpimp · · Score: 1, Offtopic

      Would this ink be able to be used for tattoos and would you get a permanent buzz if your tattoo was made of it? I am sure I already know the answer, but wouldn't that be just cool?

      --
      -- Brought to you by Carl's JR
    7. Re:Supply by RDW · · Score: 1

      Kind of ironic for a printer to use coffee grounds when one major coffee company is now using the printer cartridge business model (machine only works with expensive proprietary pre-packaged capsules you have to buy online):

      http://en.wikipedia.org/wiki/Nespresso

      Thankfully HP and Epson haven't yet tried to push their refills via some sort of dreadful 'aspirational lifestyle' club:

      http://www.guardian.co.uk/commentisfree/2007/nov/26/drink.comment

    8. Re:Supply by afxgrin · · Score: 1

      heh put the bong down man.

    9. Re:Supply by Majik+Sheff · · Score: 1

      All I could think of when I read the headline was this scene:

      http://www.youtube.com/watch?v=OEDtB2HSGzA

      --
      Women are like electronics: you don't know how damaged they are until you try to turn them on.
    10. Re:Supply by Nefarious+Wheel · · Score: 1

      You'd have to use Civet Coffee or rare Jamaca Blue Mountain Select personally ground by Paris Hilton at a Monte Carlo speaking engagement to approach the cost per cup of OEM inkjet printer ink.

      --
      Do not mock my vision of impractical footwear
    11. Re:Supply by palegray.net · · Score: 1

      Shiny happy paper printing
      Shiny happy paper in my tray
      Shiny happy paper in my tray

      Everyone around
      Print it, print it
      Print it on my can
      Takes no time to dry
      Eco, friendly
      Saving all that cash
      Profit, profit
      Saving the planet
      Where the CEO smiles
      Laserjet just frowns

      With apologies to R.E.M.

  2. Coka-Colaâ by Polarina · · Score: 1

    What would happen if someone poured a bottle of Coka-Colaâ into the printer?

    1. Re:Coka-Colaâ by cbiltcliffe · · Score: 4, Funny

      The ink would corrode the paper completely away.

      --
      "City hall" in German is "Rathaus" Kinda explains a few things......
    2. Re:Coka-Colaâ by pdabbadabba · · Score: 3, Funny

      Singularity!

  3. And later... by llZENll · · Score: 2, Funny

    if you run out of coffee, you can brew up some TPS reports!

    1. Re:And later... by bigredrushe · · Score: 1

      ...You *did* get that memo...

  4. This is the best kind of green technology by jandrese · · Score: 5, Insightful

    The kind that is completely impractical and stupid. I notice they didn't include any actual pictures of said device, or, more importantly, what a printout from said device looks like. I'll eat my hat if the lines are even and the color stays worth a damn and if the thing doesn't constantly jam up.

    --

    I read the internet for the articles.
    1. Re:This is the best kind of green technology by AuMatar · · Score: 2, Interesting

      As someone who once wrote printer firmware, I agree. Even ignoring color, absorption, and all the ink issues- how the hell are you going to make sure the ink cartridges are moved at a steady rate so that ink can be shot at the right time?

      --
      I still have more fans than freaks. WTF is wrong with you people?
    2. Re:This is the best kind of green technology by ivan256 · · Score: 5, Insightful

      It was a design competition. And I don't mean the good kind of design, where you get into technical details, either. More like the kind of design you get when you put marketing and upper management into a room together.

      This printer won't jam up, because it doesn't exist. File it with jet-packs, and flying cars under "fiction".

    3. Re:This is the best kind of green technology by PitaBred · · Score: 1

      ...that's because it's a design concept, not an actual device. It's not even prototyped from what I can tell.

    4. Re:This is the best kind of green technology by mcgrew · · Score: 1

      Why is impractical and stupid green tech the best kind? Are you from Beta Pictoris and want us to ruin our planet before we discover yours and fuck it up, too?

      The best kind of green tech is more useful, less polluting, and cheaper.

      Nobody that disses the ecology ever drove past the Monsanto plant in Sauget before Nixon signed the Clean Air Act.

    5. Re:This is the best kind of green technology by jandrese · · Score: 4, Insightful

      As I think about it, the thing can't work like an inkjet, coffee grounds are not AFAIK magnetic. It doesn't seem like it would work like a laser printer either, as it would be difficult to build up enough charge from mere linear motion of the hopper to power a laser. Also, again, coffee grounds are not magnetic. As a thermal wax type printer it would fail too since coffee grounds burn, not melt. About the only mechanism I can think of that would work is just using mechanical pumping action on a microscopic scale, but that still doesn't answer the question of how you're going to grind up the grounds fine enough to be useful and more importantly, how you are going to get them to stick to the paper.

      The more I think about it, the stupider it becomes.

      --

      I read the internet for the articles.
    6. Re:This is the best kind of green technology by fishbowl · · Score: 2, Interesting

      I would actually like to be able to make a calligraphy ink from coffee grounds, never mind the printer application.

      --
      -fb Everything not expressly forbidden is now mandatory.
    7. Re:This is the best kind of green technology by gnick · · Score: 5, Informative

      Thanks for pointing that out (although there really are some functioning jet-packs).
      FTS:

      RTI now offers a printer that uses coffee instead of ink.

      No. They don't. They do offer some pictures of what one might look like if anyone ever (for whatever reason) built one.

      TFS is often exaggerated or slightly misleading, but rarely this blatantly wrong.

      --
      He's getting rather old, but he's a good mouse.
    8. Re:This is the best kind of green technology by philspear · · Score: 1

      The kind that is completely impractical and stupid.

      Kind of like these stupid Wright bros who have the ridiculous notion that they can build a flying machine. Claptrap I say!

      Semi-serious point: While I am not going to be putting up any venture capital for this project, and all technology/ science must be met with skepticism, calling it completely impractial and stupid at this point is calling it too early. Lets wait until the tech either peters or pans out. If no further proof of concept is forthcoming, we can ignore it. If we call it stupid now, and several months later they make a laserprinter with it and the only difference is that one has a faint aroma of coffee, then you've basically called yourself completely stupid.

    9. Re:This is the best kind of green technology by Anonymous Coward · · Score: 1, Interesting

      I especially love how slashdot has gone from being a site where the primary expression to something like this was "cool, what a neat idea, i wonder how it could be made to work" has now turned into this "bah humbug, this sucks because i cannot buy it at the Apple store yesterday"

    10. Re:This is the best kind of green technology by samkass · · Score: 2, Informative

      Well, technically you don't want to shoot the ink at the right time, but at the right place. You're only using time and steady motion as a way of calculating the place. There are other ways of calculating/measuring position... but of course it'd have to be mighty accurate.

      --
      E pluribus unum
    11. Re:This is the best kind of green technology by Anonymous Coward · · Score: 0

      The kind that is completely impractical and stupid.

      That's most 'green' technology that's trying to be promoted lately. If wasn't impractical and stupid, it would find a place in the marketplace w/o a ton of subsidies and guilt-tripping the population into using it.

      Whoever came up with this printer probably liked the brown Zune too.

    12. Re:This is the best kind of green technology by ivan256 · · Score: 4, Insightful

      It hasn't. Not entirely, anyway. Things need to pass the back-of-the-napkin sanity test first. Then you can say "cool, neat idea". Space elevators seem more plausible than "water + used coffee grounds = ink".... You can't even get dark enough coffee for drinking out of half-used grounds, much less ink.... And that doesn't even get into the paper handing voodoo that is required to make a functioning printer before you try to do crazy things like moving the print-head by hand.

      For starters, the "good kind" of cool ideas generally come with some basic initial investigation into feasibility already done.

    13. Re:This is the best kind of green technology by AuMatar · · Score: 1

      No, there really isn't. Assuming the cartridge is in motion, by the time you figured out it was in the right place, it'd be too late. The code to determine position of a moving motor like that is quite complicated even assuming a constant speed- you need to deal with things like initial acceleration and deacceleration as well. I don't see how it can work and give good results.

      --
      I still have more fans than freaks. WTF is wrong with you people?
    14. Re:This is the best kind of green technology by HanClinto · · Score: 4, Informative

      With the two kinds of inkjet technology that I'm basically familiar with (bubble-jet and pezio-electric), neither of those require magnetic ink -- you can print distilled water if you want.

    15. Re:This is the best kind of green technology by Graff · · Score: 5, Informative

      As I think about it, the thing can't work like an inkjet, coffee grounds are not AFAIK magnetic. It doesn't seem like it would work like a laser printer either, as it would be difficult to build up enough charge from mere linear motion of the hopper to power a laser. Also, again, coffee grounds are not magnetic.

      Why would magnetism even factor into this? The ink in an inket printer is not magnetic, it's a simple dye that is forced under pressure onto a page where it absorbs into the surface. Laser printer toner is also not magnetic, it is usually a fine plastic powder that can be statically charged and attracted to a charged drum. There is no magnetism involved.

      Coffee grounds can produce a liquid that stains and that's all you'd need for inkjet ink. I'm sure that the printing wouldn't be as good as commercial ink but it would probably be readable, at least for temporary documents. That being said I don't see this kind of device going anywhere. If you want to be "green" then throw those coffee grounds into your garden, trying to use them as ink is just way too impractical.

    16. Re:This is the best kind of green technology by NickW1234 · · Score: 1

      Assuming your position detection is really slow, you would be right. The code wouldn't be all that difficult, most standard printers don't read the position off of the motor, they just read ticks off of an encoder strip. You would need to use a quadrature instead for this, in case the user makes a half pass, or stops mid stroke or something. The velocity calculation would need to be pretty quick, but fast microcontrollers are pretty cheap these days.

    17. Re:This is the best kind of green technology by Anonymous Coward · · Score: 0

      ...that's because it's a design concept, not an actual device. It's not even prototyped from what I can tell.

      ...and it never will be.

    18. Re:This is the best kind of green technology by Facegarden · · Score: 1

      The kind that is completely impractical and stupid. I notice they didn't include any actual pictures of said device, or, more importantly, what a printout from said device looks like. I'll eat my hat if the lines are even and the color stays worth a damn and if the thing doesn't constantly jam up.

      Well, it's a design contest, so naturally there isn't an actual product yet, as that's not the goal of the contest, and going that far may not have been timely to get into the contest. I think the idea in general is quite sound. Most things i print out are worthless to me in a day's time, so if the ink barely keeps, that's fine with me. I can keep a regular printer for other stuff.

      And yeah, operating it by hand might not be the best idea, but it's just a concept after all. The important part of the idea is using coffee grounds as ink.
      -Taylor

      --
      Worldwide Military budgets: $2100 billion. Worldwide Space Exploration budgets: $38 billion. Really, world? Really?
    19. Re:This is the best kind of green technology by jojo78 · · Score: 1

      Why must you bring facts into the scrutiny?

      I find the mere idea of fact ridiculous.

    20. Re:This is the best kind of green technology by DerekLyons · · Score: 1

      I'm sure that the printing wouldn't be as good as commercial ink but it would probably be readable, at least for temporary documents.

      It wouldn't really be readable at ordinary type sizes... Coffee isn't really all that dark in thin layers or in small amounts.

    21. Re:This is the best kind of green technology by amRadioHed · · Score: 1

      They also said in the article that used tea leaves would work just as well. Now I've made a number of unintentional tea stains on papers in my lifetime and although they are visible, I wouldn't want to try to read a page of text in that color.

      --
      We hope your rules and wisdom choke you / Now we are one in everlasting peace
    22. Re:This is the best kind of green technology by Anonymous Coward · · Score: 0

      I can't see why it wouldn't work if you just used coffee - and maybe some low power motor that can be powered by the USB port alone. One reservoir has a fairly dark brew, and the other reservoir has water that can be used to vary the ink droplet intensity, so you can get a little bit more to work with in terms of varying colour.

      It would need even some small type of power source just to power the basic ICs. You'd want some type of data buffer, and when the cartridge gets moved from one to the other, some type of detector counts the translation of the cartridge across. Moving it causes the cartridge to print the info stored at a memory location + 1.

      I think there could be a lot of problems creating a desirable droplet size for printing. Having a dynamic per droplet intensity, instead of using dithering to produce lighter colours, you can just use one large, lighter coloured blob. The reason certain inks are used is due to the inks desirable chemistry.

      It would need to get connected to a computer for it to print something anyway.

      Maybe rubbing alcohol and coffee would work better?

      --

    23. Re:This is the best kind of green technology by Ritchie70 · · Score: 1

      That's because it isn't real.

      This is an entry in a design competition. A design competition is roughly equivalent to "artsy people who couldn't engineer their way out of a paper sack making up weird shit that couldn't really be built."

      --
      The preferred solution is to not have a problem.
    24. Re:This is the best kind of green technology by turtledawn · · Score: 3, Informative

      well, coffee is somewhat acidic, so start looking for recipes for acidic dyes. If you're doing calligraphy, you're probably springing for cotton paper, and cotton responds pretty well to dye baths with salt in them, so you could first start by brewing fine-ground espresso seven or eight times to get most of the pigments into the water, then add a bit of salt. If you're worried about longevity, then you could add some borax until youhave a neutral pH.

      I haven't actually made any inks for a few years, and when I did they were short-life and based on fresh plant pigments (spent, crushed irises make lovely inks, but they don't last worth a damn) so I don't have any other advice to offer.

      --
      Uh, "if it looks roughly mouse-shaped according to my infra-red sensitive pit, eat it"? --Chris Burke 09-08-10
    25. Re:This is the best kind of green technology by Reziac · · Score: 1

      The basic idea may be okay, tho, as a quick-and-dirty (literally) portable printer that can use whatever grindable-coloured-gunk is ready to hand, and more importantly, requires no power. So the print quality will suck, but it may be good enough for printing something out in the field where you've got a laptop but no other ready power source.

      Substitute ordinary crayons for coffee grounds, and it may well be a pretty reliable gadget, quite suitable for rough locations without power sources for printers, and the "ink" available almost anywhere at minimal cost (and even in different colours). For text or a rough drawing, the equivalent of an old-fashioned 9-pin printer is quite sufficient.

      --
      ~REZ~ #43301. Who'd fake being me anyway?
    26. Re:This is the best kind of green technology by Anonymous Coward · · Score: 0

      Spoke someone who has no clue. You can extract some pretty well staining "inks" from almost any organic matter. Your plain old *green* tree leaves can actually give you two colors (green and yellow) if you run the extract through a chromatography column. Even used coffee beans, extracted with something common like toluene, benzene or maybe even methanol should give you very decent ink, suitable for bubble jet for sure.

    27. Re:This is the best kind of green technology by PiSkyHi · · Score: 1

      How many DPI before the uncertainty principle ruins your latest physics paper ?

    28. Re:This is the best kind of green technology by ivan256 · · Score: 1

      Even used coffee beans, extracted with something common like toluene, benzene or maybe even methanol should give you very decent ink, suitable for bubble jet for sure.

      They specifically say "water". Not benzene, not toluene, not methanol. Water.

    29. Re:This is the best kind of green technology by petermgreen · · Score: 1

      although there really are some functioning jet-packs
      For sufficiantly small values of functioning. Having to jump out of a plane to launch and use a parachute to land kinda makes them pretty useless. The scifi concept of a jetpack or jet boots that lets the user take off, fly arround, hover and land at will is still a pipe dream.

      Similar things can be said of flying cars, people have made vehircles that can both fly and drive and there is at least one firm currently trying to bring one to market commercially but they are a long way off the scifi idea of flying cars.

      --
      note: i'm known as plugwash most places but i screwd up registering that here somehow in the past and now can't register
    30. Re:This is the best kind of green technology by who's+got+my+nicknam · · Score: 1

      EXACTLY! Someone please mod this up, already. It's a bloody CONCEPT, and futhermore, hideously impractical. Moving the cartridge by hand? Come on! It's a joke, people!

      --
      "Apparatus dignosco occultus, satis non supernus."
    31. Re:This is the best kind of green technology by Anonymous Coward · · Score: 0

      Why would magnetism even factor into this? The ink in an inket printer is not magnetic, it's a simple dye that is forced under pressure onto a page where it absorbs into the surface. Laser printer toner is also not magnetic, it is usually a fine plastic powder that can be statically charged and attracted to a charged drum. There is no magnetism involved.

      Coffee grounds can produce a liquid that stains and that's all you'd need for inkjet ink. I'm sure that the printing wouldn't be as good as commercial ink but it would probably be readable, at least for temporary documents. That being said I don't see this kind of device going anywhere. If you want to be "green" then throw those coffee grounds into your garden, trying to use them as ink is just way too impractical.

      how do you turn ink into fine mist of few molecules in diameter? by creating massively fluctuating magnetic field to vibrate the ink molecules - thats why you need electricity to print (technically water should work too, since MRI works in similar principle - the water molecules fluctuate according to magnetic field - but you still need some charged, (water is polar) or some other molecule that will respond to magnetic field

    32. Re:This is the best kind of green technology by fishbowl · · Score: 1

      Thanks for the advice, turtledawn. It was a serious question and you gave a serious and useful answer and I appreciate that.

      --
      -fb Everything not expressly forbidden is now mandatory.
    33. Re:This is the best kind of green technology by Graff · · Score: 1

      how do you turn ink into fine mist of few molecules in diameter? by creating massively fluctuating magnetic field to vibrate the ink molecules - thats why you need electricity to print (technically water should work too, since MRI works in similar principle - the water molecules fluctuate according to magnetic field - but you still need some charged, (water is polar) or some other molecule that will respond to magnetic field

      Nope. Try again.
      Pretty much all inkjet printers in use today use either a bubble jet (thermal bubble) or a piezoelectric method to produce fine droplets. Bubble jet printers use fine nozzles that have a heater located just inside the nozzle. When the heater turns on it creates a small vapor bubble that shoots ink out the nozzle. Piezoelectric printers use a piezoelectric actuator located just inside the nozzle that shoots ink out the nozzle. There are no commercial inkjet printers that use magnetic fields in the fashion you describe and I'm not certain that what you describe is a practical design for an inkjet printer.

      By the way, an MRI does not work the way you are describing. The magnetic field is stationary, not "massively fluctuating". It also does not work on molecules, rather it works directly on the nuclei of atoms. This large, stationary magnetic field causes the magnetic moments of certain nuclei, such as hydrogen nuclei, to line up with the magnetic field. A radio signal of a frequency specific to that nuclei is tightly focused on a small position. This rotates the nuclei that are at that spot and when the radio signal is removed from that position the nuclei snap back, radiating a radio signal of their own which is detected by the instrumentation.

      Please, if you don't completely understand something technical then don't spread misinformation or supposition. A few seconds with Google would have shown you how both these things actually work. Better yet, go take a course in physics or chemistry and directly learn this stuff for yourself.

  5. hmmmm by weirdcrashingnoises · · Score: 1

    i wonder how the manual moving it works, with a motor u get a good constant speed... but manual, not so much, and it seems like that kind of thing would affect the quality of prints...

    --
    sigs... don't talk to me about sigs....
  6. Compost by mcgrew · · Score: 3, Funny

    But if I use my coffee grounds for ink, what will I mix with eggshells to put in my garden?

    1. Re:Compost by colesw · · Score: 2, Funny

      Well after you see your terrible printouts you can shred your paper and put it in the garden?

      (not a gardener, I take no responsibility for your plants)

    2. Re:Compost by Anonymous Coward · · Score: 0

      ground squirrels?

    3. Re:Compost by nizo · · Score: 1

      Printed on biodegradable paper, your printouts could later be recycled in your compost or eaten for a quick caffeine fix.

    4. Re:Compost by mcgrew · · Score: 2, Informative

      Squirrels are people food, not plant food.

    5. Re:Compost by mcgrew · · Score: 1

      Paper will poison your garden. Used paper's only use (that I know of) is to make more paper.

    6. Re:Compost by Anonymous Coward · · Score: 1, Funny

      obviously you have never ran out of toilet paper

    7. Re:Compost by mcgrew · · Score: 3, Interesting

      Printed on biodegradable paper

      Hemp is illegal in this country. Wood pulp is toxic to most plants (and us too, which is why wood alcohol will make you blind while grain alcohol makes great mixed drinks), that's why it's hard to get grass to grow under a tree. And even if you used hemp (or grass or something else) paper, it would have to be acid-free paper to not kill your plants. Ironically a good source of acid-free paper is coffee filters, except that the coffee makes them acidic.

      Of course, you really want acid-free paper anyway. paper is for books, and you want your books to last as long as possible. Normal acidic paper (what you're running through your printer) lasts 50-100 years without extreme measures to keep it legible. I'm going to have to replace my paperback copies of the Foundation trilogy because after over four decades they're barely legible now.

    8. Re:Compost by mcgrew · · Score: 1

      But what can you do with used toilet paper?

      Your , Wagons East. The movie's premise is easterners who have come west for their fortunes and find they hate it, and want to go back.

      There's one gay character who owns a book store. A cowboy comes in and tells the guy, "I need a damn big book!"

      The proprieter (it's been a while since I watched it, I don't remember his name) says "why certainly. Try [name of highly respected classic literature]."

      The cowboy rips out a few pages, to the proprietor's chagrin, puts it under his arm, and says "I'll be back" as he heads to the outhouse.

      I wouldn't want to reuse that book!

    9. Re:Compost by snspdaarf · · Score: 1

      I remember acid paper. The hippies would cut it into stamp-sized squares, like this one here, and you would paht eh ahn ya thangue lak thifs....Wooaah......When did Peter Max paint my office?

      --
      Why, without your clothes, you're naked, Miss Dudley!
    10. Re:Compost by Graff · · Score: 5, Informative

      Wood pulp is toxic to most plants (and us too, which is why wood alcohol will make you blind while grain alcohol makes great mixed drinks), that's why it's hard to get grass to grow under a tree.

      What???

      Wood pulp is not toxic to plants. It's mostly simple lignin and cellulose which most plants will grow in quite happily. The reason grass doesn't grow under trees is that the shade from the tree is not good for the growth of grass. Even the "shade" varieties of grass can only tolerate partial shade.

      "Wood" alcohol is actually methanol and "grain" alcohol is actually ethanol. When you ferment grain you actually get both methanol and ethanol, it's through careful control of the fermentation process that you minimize the methanol and maximize the ethanol. That's why poorly-made beers and wines tend to give you hangovers, they have a lot more methanol and other undesirable byproducts.

      The reason methanol is called wood alcohol is because it was primarily produced through the destructive distillation of wood pulp. This doesn't mean that wood pulp is toxic, it just means that when you destroy wood pulp with heat in an anaerobic environment you produce toxic chemicals. If you take grain and treat it the same way then you'll produce methanol and other toxins. This has NOTHING to do with if wood pulp is toxic or not.

      Please, don't start spewing nonsensical chemical information unless you know what you are talking about. And, yes, I am a chemist.

    11. Re:Compost by Shikaku · · Score: 1

      Ow.

    12. Re:Compost by UncleTogie · · Score: 1

      Wood pulp is not toxic to plants. It's mostly simple lignin and cellulose which most plants will grow in quite happily. The reason grass doesn't grow under trees is that the shade from the tree is not good for the growth of grass. Even the "shade" varieties of grass can only tolerate partial shade.

      Maybe not *pure* wood pulp, but after that wood pulp's been processed and bleached, it's not as safe as you initially indicate. See this reference for details...

      --
      Don't tell me to get a life. I'm a gamer; I have LOTS of lives!
    13. Re:Compost by Graff · · Score: 2, Informative

      Maybe not *pure* wood pulp, but after that wood pulp's been processed and bleached, it's not as safe as you initially indicate. See this reference for details...

      Yes, the process of turning wood pulp into bleached paper can produce chemicals that have an amount of toxicity. Small amounts of dioxins, for example, are produced when chlorine is used as part of the bleaching process. However, it would take quite a large amount of bleached paper to be of any danger to a person. The real risk to the older bleaching process was to the environment downstream of the paper mill. This is where the dioxins would concentrate and cause harm to plants and animals. The bleached paper itself was usually pretty harmless.

      Anyways, most modern paper mills no longer use chlorine in their process. Instead they use oxygen, ozone, and hydrogen peroxide to bleach in a way that produces a much cleaner and environmentally-friendly product. This means that dioxins are no longer being produced in the majority of paper mills.

    14. Re:Compost by Falconhell · · Score: 1

      "The reason grass doesn't grow under trees is that the shade from the tree is not good for the growth of grass."

      Hate to bring facts into the debate, but eucalyptus
      leaves are toxic to other plants, and will kill them off, regardless of shade.

    15. Re:Compost by amRadioHed · · Score: 2, Funny

      To bring another fact into the debate, leaves aren't wood.

      --
      We hope your rules and wisdom choke you / Now we are one in everlasting peace
    16. Re:Compost by Graff · · Score: 1

      eucalyptus leaves are toxic to other plants, and will kill them off, regardless of shade

      Yes, a lot of leaves falling onto grass, piling up, and rotting can also kill grass. This is due to tannins in the leaves and the physical effect of the leaves choking off the grass's light and root systems. That still doesn't have anything to do with wood itself being toxic to plants, trees need to protect their leaves from insects by loading them up with toxins. The trunks of most trees don't contain significant amounts of toxins, with the exception of some trees like cedar.

      No matter, all I'm saying is that you can't simply look at the fact that there is less grass under a tree and say, "Oh, wood must be toxic to plants." It's spurious logic.

    17. Re:Compost by Barradrewda · · Score: 1

      This makes me wish I could mod the mods "funny".

    18. Re:Compost by Anonymous Coward · · Score: 0

      I can confirm that paper does not kill people that easily.I have a nasty habit of chewing on pieces of paper like chewing gum and after 30 years I can confirm that I am not dead. Anyway, in many countries paper is used to make advertisements etc. and I have seen stray cows and goats eat them.

    19. Re:Compost by Reziac · · Score: 1

      Some plants (oaks among them) do produce chemicals in their leaves that inhibit germination and/or growth in other plants. However, as others point out, this has nothing to do with wood or wood pulp, let alone paper production; and in most cases, shade and rotting biomass are indeed the larger inhibiting factors.

      Hmm... maybe we should consider using oak biomass for our poison-pen printers ;)

      --
      ~REZ~ #43301. Who'd fake being me anyway?
  7. You can't fax coffee... by Sabz5150 · · Score: 1

    Coffee don't fax worth a damn!

    --
    "Who modded this informative? Whoever it is must've been smokin' some of that martian pot!"
  8. Coming soon by hyades1 · · Score: 1, Informative

    No doubt the next big thing will be a urinal/generator fueled (indirectly) by beer. The Super Bowl could generate enough power to satisfy America's energy needs for the next three weeks. And the Stanley Cup Playoffs could wean the world off petroleum products forever.

    --
    I've calculated my velocity with such exquisite precision that I have no idea where I am.
    1. Re:Coming soon by Chabo · · Score: 1

      You overestimate the number of people that watch the Stanley Cup.

      There's a good reason that the Super Bowl is the #1 advertising space on TV.

      Hell, I love hockey, but I hate the NHL. Much rather watch a college game.

      --
      Convert FLACs to a portable format with FlacSquisher
    2. Re:Coming soon by EveLibertine · · Score: 4, Funny

      You underestimate the amount of beer that the 10 Canadian guys who watch the Stanley Cup Playoffs drink.

    3. Re:Coming soon by hyades1 · · Score: 1

      Damn...you beat me to the punch. Double or nothing on a race to the back porch/beer cooler?

      --
      I've calculated my velocity with such exquisite precision that I have no idea where I am.
    4. Re:Coming soon by EveLibertine · · Score: 1

      I think you won that race, but I think everyone will agree that we all lost something back there.

  9. Post when.... by Samschnooks · · Score: 1
    there's an Eco-friendly printer that uses empty Scotch bottles.

    *Snooooooooor*

  10. What this really needs is... by ductonius · · Score: 1

    What this really needs is one of those spring-wound generating mechanisms like the freeplay radio. Then you'd have a printer that *really* used no external power and you could walk away from it while its printing

    Of course, that would increase the size a bit, but (much like scraping out the waffle on Vietnam jungle boots) you can't have everything, am I right?

  11. What else are you going to use used grounds for? by binaryspiral · · Score: 1

    Okay, so it would be a waste of coffee had this device required fresh grounds... but now that you've brewed your java - what else are you going to use them for?

  12. Yum, yum. Recycled, recycled Kopi Luwak by auric_dude · · Score: 1, Funny

    Make the best brown pigment but is a bit pricey http://en.wikipedia.org/wiki/Kopi_Luwak

    1. Re:Yum, yum. Recycled, recycled Kopi Luwak by UncleTogie · · Score: 1

      Wow. Almost makes me want to puke...

      --
      Don't tell me to get a life. I'm a gamer; I have LOTS of lives!
    2. Re:Yum, yum. Recycled, recycled Kopi Luwak by ZarathustraDK · · Score: 1

      Wow. Almost makes me want to puke...

      Brown, yellow, now we just need another color and we got ourselves a new RGB-substitute. How about snot or wasabi?

      --
      If you quote this signature there'll be 72 copies of Windows ME waiting for you in Heaven.
  13. Not worth the bandwidth by Anonymous Coward · · Score: 0

    This article is not worth the bandwidth that it is transmitted upon. I propose a motion that any further discussion in this thread will now be on how best to hunt, gut, and cook hippies.

  14. No news on Mondays? by NonUniqueNickname · · Score: 1

    There is no product, no prototype, no schematics. This is just a picture someone made for contest. He didn't even win.

  15. Sorry boss by internerdj · · Score: 0

    I really do need another cup of coffee before I can print out my TPS report.

  16. Meh! by srussia · · Score: 3, Funny

    Maybe OK for all those all those twee sepia prints. Tell me when I can use my blood (magenta), my wife's blood (cyan), and our urine (yellow). It would surely be a lot less painful and cheaper than the current state of affairs.

    --
    Set your phasers on "funky"!
    1. Re:Meh! by blitzkrieg3 · · Score: 1

      my wife's blood (cyan)

      WTF?

    2. Re:Meh! by LateArthurDent · · Score: 2, Informative

      WTF?

      I'm guessing his wife is of noble descent.

    3. Re:Meh! by Anonymous Coward · · Score: 0

      my wife's blood (cyan)

      WTF?

      She must be royal

    4. Re:Meh! by Chris+Mattern · · Score: 1

      Either that or she's Vulcan.

    5. Re:Meh! by amRadioHed · · Score: 1

      More likely she's a Horseshoe Crab.

      --
      We hope your rules and wisdom choke you / Now we are one in everlasting peace
    6. Re:Meh! by turtledawn · · Score: 1

      I though Vulcans and Romulans had green blood, and it was Andorians that had blue. Or maybe Andorians were orange-blooded (which would be odd gievn the blue skin). It's been a while since I saw Undiscovered Country.

      --
      Uh, "if it looks roughly mouse-shaped according to my infra-red sensitive pit, eat it"? --Chris Burke 09-08-10
  17. Elbow grease by Tubal-Cain · · Score: 1

    the printer also uses good old fashioned elbow grease to move the grounds cartridge back and forth. Sounds like a novelty that will die quickly as human sloth reasserts itself.

    I would be much more willing to uses a stationary bicycle than a handcrank.

    1. Re:Elbow grease by DriveMelter · · Score: 1

      How about getting Mr Bayliss to make us a clockwork printer?

  18. It has some limitations.... by Het+Irv · · Score: 2, Funny

    It can only print "hyper-text" and java code... Apologies to drs305 and JoshuaRL for stealing their comments

  19. Cheap ink? yeah right by duckInferno · · Score: 1

    They'll scrounge for your coffee beans then charge $50 for a cartridge. At least it'll be enviro friendly :P

    --
    Fool me once, shame on you. Fool me twice, watch it -- I'm huge!
  20. So now RSI is good for the environment? by Ungrounded+Lightning · · Score: 2, Insightful

    Seems to me the treatment of the Repetitive Stress Injuries incurred from operating this device would more than offset any environmental gains.

    There are motors in printers for a reason.

    --
    Bantam Dominique roosters crow a four-note song. Once you've heard it as "Happy BIRTHday" you can't NOT hear it that way
    1. Re:So now RSI is good for the environment? by synthesizerpatel · · Score: 1

      I guess we better stop riding bikes too then.

      How often do you print things out? I only print out things once every couple of weeks. With printer ink costing more than champagne (circa 2003).. Why not explore new ways of eliminating waste, saving money, and recycling otherwise unused materials.

      If you're printing out enough that you fear RSI, I'm more concerned about the trees than I am for your wrist and ink.

  21. even greener by bugs2squash · · Score: 5, Funny

    use sequestered carbon in a filament, contained in sustainably-harvested wood sleeve.

    Move hand around to create "printouts".

    --
    Nullius in verba
    1. Re:even greener by Anonymous Coward · · Score: 0

      On behalf of those who did get it - thanks, asshole.

    2. Re:even greener by operagost · · Score: 1

      Don't forget to resequester the carbon immediately. After handing the "printout" to the recipient, snatch it back as soon as they're done reading, eat it, kill yourself, then bury yourself deep in the earth.

      --

      Gamingmuseum.com: Give your 3D accelerator a rest.
    3. Re:even greener by flyingfsck · · Score: 1

      Hmm, most Sloshdatters are too young to recognize your innovative pencil design.

      --
      Excuse me, but please get off my Pennisetum Clandestinum, eh!
    4. Re:even greener by Reziac · · Score: 1

      I'm wondering how the sustainable wooden sleeves count up, over time, against my 60+ year old Bakelite-and-metal mechanical pencil. After all, it only had to be made ONCE, so there was no carbon expended in harvesting the sustainable wood.

      --
      ~REZ~ #43301. Who'd fake being me anyway?
    5. Re:even greener by Anonymous Coward · · Score: 0

      Finally, a comment in this thread that made me really laugh.

      I suspect s/he didn't get it right away and assumed that everyone else is dumber than s/he is...

  22. holy hell. Green Zealots, this is insanity. by Anonymous Coward · · Score: 0

    Now, dont get me wrong, the idea of recycling and all that is important, but the whole "going green" frenzy that's hit this country just jumped the god damned shark. COFFEE WASTE? Using your own HAND to move the print head? At that point, I might as well go back to using my old electric blue IBM typewriter.

  23. PC LOAD COFFEE by taxman_10m · · Score: 5, Funny

    What the fuck does that mean?

    1. Re:PC LOAD COFFEE by Shivetya · · Score: 1

      it probably is the crap in our office coffee machine.

      Stuff which makes potting soil look appealing.

      Considering its effect on our people perhaps they can link it with a gas recycling facility in the mens room.

      --
      * Winners compare their achievements to their goals, losers compare theirs to that of others.
    2. Re:PC LOAD COFFEE by ZarathustraDK · · Score: 1

      Considering its effect on our people perhaps they can link it with a gas recycling facility in the mens room.

      That's a no-go, imagine the massacre if Russia decided to turn off the gas-valve. The last thing heard before the explosion which knocked Earth out of orbit was a million people screaming "The gas must FLOW!"

      --
      If you quote this signature there'll be 72 copies of Windows ME waiting for you in Heaven.
  24. It uses the grounds? by Duradin · · Score: 2, Funny

    And here I thought someone actually found a use for the burnt to a crisp more acidic than battery acid sludge that is supposedly break room coffee.

  25. No addiction, no printer? by macraig · · Score: 1

    So you mean I have to get addicted to coffee before I can buy this printer...?

  26. Old news by bugnuts · · Score: 3, Funny

    I have a mug-shaped coffee printer. Currently, it can only print 'o', but I suppose that's good enough if you're a ghost in UO.

    1. Re:Old news by eliphalet · · Score: 2, Funny

      It's the Brown Ring of Quality!

    2. Re:Old news by Amazing+Quantum+Man · · Score: 1

      Damn. That was the first thing I thought of when I RTFS. You, sir, have beaten me to it.

      --
      Fascism starts when the efficiency of the government becomes more important than the rights of the people.
    3. Re:Old news by Anonymous Coward · · Score: 0

      OooOOOOoOOOOOOOoOoOOOooooO

    4. Re:Old news by Anonymous Coward · · Score: 0

      Wow, that's the perfect logo for our new company called Uranus-Hertz!

      Hiring Dogbert as a design consultant really paid for itself!

  27. Re:holy hell. Green Zealots, this is insanity. by mcgrew · · Score: 1

    The idea isn't to save wasted coffee grounds, the idea (granted, it's a really bad idea because it's unworkable) is to replace the toxic matierals much ink is made from with something that is 100% nontoxic and biodegrades 100%.

    It would be a good idea if it wasn't such a bad idea.

  28. Eco-friendly printer by joeflies · · Score: 1

    If only someone could invent a way to create and transmit mail and documents electronically, so that computers can talk to each other and eliminate wasteful PAPER instead of ink.

    1. Re:Eco-friendly printer by blueforce · · Score: 1

      That's no good for printing digital photos.

      At least with this you can print the whole family in 16-bit coffee-scale suitable for framing.

      --
      If you do what you always did, you get what you always got.
  29. Solving the wrong problem. by fuzzyfuzzyfungus · · Score: 4, Insightful

    The environmental issues with printers, so far as I can tell, are almost entirely products of certain marketing pressures, rather than any particular technological problems. That makes the adoption of an inferior technology seem rather pointless.

    In the case of inkjets, the trouble is not the ink(which is used in 10s of milliliters and doesn't contain anything especially nasty) or the cartridge(which could easily be made of a recycleable plastic); but the whole razor/blades model. The fact that it is, in many cases, cheaper to buy a new printer than a set of replacement cartridges for your old one(which will have clogged in any case, in all probability). As long as entire printers are made to be cheap disposable crap, making them out of anything but sunbeams and compressed happiness will result in mountains of junk. If they were actually designed for reasonable service lives, maybe even repair, you'd be fine with some basic ease of recycling features(choice of plastics, greater modularity). Ink isn't really the important bit.

    Lasers are more or less similar. Toner isn't exactly a salubrious tonic to the tissues of the lungs; but fine dusts never are, it is otherwise just plastic and carbon black, sometimes some iron oxide. If a friendlier material can be designed, great; but the real focus should be on the disposability of the printer and its components, and the power draw.

    1. Re:Solving the wrong problem. by Demonantis · · Score: 1

      We live in a disposable world. Many products are designed cradle to grave, not cradle to cradle. By engineers not looking at uses after product death there will always be recyclables in products.

    2. Re:Solving the wrong problem. by Anonymous Coward · · Score: 0

      Everyone knows it's impossible to recycle nuclear waste. We should start making consumer goods out of it. At least then when it gets thrown away we'll know we couldn't have made anything out of it anyway.

    3. Re:Solving the wrong problem. by Anonymous Coward · · Score: 0

      The fact that it is, in many cases, cheaper to buy a new printer than a set of replacement cartridges for your old one(which will have clogged in any case, in all probability). As long as entire printers are made to be cheap disposable crap, making them out of anything but sunbeams and compressed happiness will result in mountains of junk.

      And the funny part is that these printers almost always come with starter cartridges... And these starter cartridges often have half or less ink / toner.

      And these same printer companies tell you that you void your warranty if you use aftermarket cartridges. And people believe them. What if GM told you that you could only use GM Gasoline, GM Air Filters, and GM tires on your GM vehicle? They would get laughed at.

    4. Re:Solving the wrong problem. by shentino · · Score: 1

      GM wouldn't get laughed at if they actually had enough market power to make it happen.

      The problem with this car analogy is that it doesn't follow. Cars have standardized parts, printers don't.

    5. Re:Solving the wrong problem. by Grishnakh · · Score: 1

      You're missing the Magnusson-Moss Warranty Act. Car makers aren't allowed to deny warranty coverage for using competitors' parts, unless they can prove it was those parts that caused the problem. This law has been on the books for a very long time now, and is precisely why car makers don't try to screw people who use Fram oil filters and the like.

      Also, cars DON'T have standardized parts. Go to your local auto parts store and count the different varieties of oil filters (just from one maker, like Fram). Equivalent replacement parts exist because these aftermarket manufacturers have done the engineering necessary to create compatible parts for the cars out there (though frequently, these makers also happen to be the suppliers to the major automakers, and the parts are the same except for the exterior markings). GM doesn't actually make oil filters, in case you didn't know.

  30. Make paper out of donuts by Rollgunner · · Score: 1

    ... and i'm in !

    1. Re:Make paper out of donuts by mcgrew · · Score: 1

      In our break room I'd swear thay make the donuts out of paper.

  31. Re:holy hell. Green Zealots, this is insanity. by philspear · · Score: 1

    Using your own HAND to move the print head? At that point, I might as well go back to using my old electric blue IBM typewriter.

    Which runs on espresso grinds?

    Something tells me that if this actually works, their next model will not be hand-powered, and you'll have forgotten you called it stupid. And jumping the shark? Please. If in 5 years they come out with a real one, and it both saves me the hassle of buying ink cartridges AND does something usefull with the coffee grounds, it really shouldn't matter if it comes from misplaced environmentalism.

    Anyway, what's wrong with the "green frenzy"? It's better than, say, the "What is brittney going to do next" frenzy.

    Disclaimer: I doubt that this will actually work, so you're probably safe.

  32. Jetpacks and flying cars exist. by Colin+Smith · · Score: 1

    They're just rubbish.

    HTH.
     

    --
    Deleted
  33. Smell by Prune · · Score: 1

    Much of the flavor in coffee is from its oils. When used coffee grounds sit for not too long (less than an hour), the remaining oils start turning rancid and shortly you will find your printed items to have a rather unpleasant odor that persists a long time.

    --
    "Politicians and diapers must be changed often, and for the same reason."
  34. Printer-friendly link? by dazedNconfuzed · · Score: 1

    Funny, the page doesn't have a link to a printer-friendly copy of the article.

    --
    Can we get a "-1 Wrong" moderation option?
    1. Re:Printer-friendly link? by tompaulco · · Score: 1

      Funny, the page doesn't have a link to a printer-friendly copy of the article.
      Are you sure? Maybe your printer is just out of coffee.

      --
      If you are not allowed to question your government then the government has answered your question.
  35. 10 points for coffee, minus 1M points for manual by Timberwolf0122 · · Score: 1

    What? seriously how much power did that take to move a print head to and fro? I can see people printing large documents, you know the 50 page specs that you click print and then go off for a walk, last thing I want to do is have to move the print head by hand.

    --
    In the not too distant future, next Sunday A.D.
  36. Meh. It's an idea. by jimicus · · Score: 1

    Ideas are ten a penny.

    Where the value comes is in the clever execution of those ideas.

    Or, to put it another way: Xerox invented the GUI and the mouse. When was the last time you used a GUI that Xerox had produced?

    Compaq have been credited with inventing the hard-disk based MP3 player. The last time HP marketed a hard disk based MP3 player, however, it was a rebranded iPod.

    1. Re:Meh. It's an idea. by dubbreak · · Score: 1

      Xerox invented the GUI and the mouse.

      Nope. That was done at SRI. So was the base research for the gui (scrolling pages, interacting with screens using the mouse etc). All funded with war money iirc.

      The researches from there ended up at Xerox PARC. Steve Jobs was introduced to the GUI at PARC, but it hardly started there.

      If you are interested in the history of the PC (and its tie-ins to drug use and the counter culture) I reccomend the book 'What the dormouse said: How the Sixties Counterculture Shaped the Personal Computer Industry. Some of it was a bit dry, but overall a good read about the early days of the PC and how we got to where we are today.

      --
      "If you are going through hell, keep going." - Winston Churchill
  37. Colored Pie Charts by queenb**ch · · Score: 1

    So how does it print color?

    I can hear my end users asking now....

    2 cents,

    QueenB.

    --
    HDGary secures my bank :/
    1. Re:Colored Pie Charts by machine321 · · Score: 3, Funny

      Browns come out quite well.

    2. Re:Colored Pie Charts by drpimp · · Score: 1

      No, but you get 256 shades of poo!

      --
      -- Brought to you by Carl's JR
    3. Re:Colored Pie Charts by redJag · · Score: 1

      You can print in any color you want, as long as it's brown.

    4. Re:Colored Pie Charts by master5o1 · · Score: 2, Funny

      Perfect printer for Ubuntu then!

      --
      signature is pants
    5. Re:Colored Pie Charts by Ihmhi · · Score: 1

      +1 Henry Ford reference.

  38. I'll believe it uses coffee... by trailerparkcassanova · · Score: 1

    When it doesn't depend on bullshit...

  39. OOPS by mcgrew · · Score: 1

    Screwed that comment up big time. Mod me "-1, dufus".

    That second paragraph should read "Your post reminded me of John Candy's last movie, Wagons East. The movie's premise is easterners who have come west for their fortunes and find they hate it, and want to go back

  40. But I don't drink coffee. Can't stand the stuff. by Conspiracy_Of_Doves · · Score: 1

    Don't get me wrong, I love caffeine. I'm still a geek and everything. I just get it from sources other than coffee.

  41. It came from a competition entry... by denzacar · · Score: 1

    ... at greenergadgets.com

    Now... while I like the idea, I don't really see it working for real.
    It is a nice hippie pipe dream at best.
    Whoever "designed" it forgets that people don't use printers because they have bad handwriting, but because they need clear, efficient, quick and presentable printouts.
    Manually powered... I don't think so.
    Plus... that last point kind of defeats the eco-idea of the printer by itself.
    How much water would be wasted annually that way?

    Use:

    1. Insert a paper in the middle of the printer
    2. Put the coffee or tea dregs into the ink case on the top of the printer
    3. Move the ink case left and right as you draw on a paper
    4. When the print finishes, pull out the paper from the printer and wash the ink case

    Some other "designs" on the list are also intriguing but most seem as they have been envisioned either by children or over-privileged westerners.
    Like someone who never heard of indoor drying racks and power-socket timers and thinks that you could solve the power crisis by harnessing the immense untapped potential of doormats and trampolines.
    You know... those same people that find a wallet that would overheat, smell bad, bite your hand and otherwise embarrass it's owner when he/she tries to take money out of it - a fuckin great idea.

    Oh... and that portable hard-drive you have, that fits in your pocket?
    Wouldn't you be a lot happier with one that needs a bag just so you could lug it around - cause it is a god damn concrete brick!
    Concrete would prevent such heavy metals your portable drive is made of like imaginarium and unobtanium from leaching into the landfill.
    Once you get sick of hauling 20 pounds of bricks around with you and you just chuck the god damn thing out of the window of your car.
    Hopefully, one might eventually hit the inventor in the head. Or the wallet guy.

    --
    Mit der Dummheit kämpfen Götter selbst vergebens
    1. Re:It came from a competition entry... by operagost · · Score: 1

      It's truly hilarious that our "wallet guy" thinks "envy" and "lust" are synonyms for "greed." I thought the "lust" wallet would be designed to keep you from signing up for porn sites, at least.

      --

      Gamingmuseum.com: Give your 3D accelerator a rest.
  42. Stupid idea by SnarfQuest · · Score: 0, Redundant

    This has to be a really stupid idea, but that is what many of these "green" ideas are.

    Used coffee grounds for ink? You will not get consistant darkness, and it will probably bleed so much that the printout will be completely unreadable. Just try draw anything on paper using coffee. Regular ink-jet ink tends to bleed like crazy, some random crap isn't going to work better.

    Manually operated print-head? Do they specify the number of times you are going to have to pump the thing to get a single page printed? If your arms aren't sore after printing out that 100 page general ledger, you should get an automatic invitation to the next olympics.

    --
    Who would win this election: Andrew Weiner vs Andrew Weiner's weiner.
    1. Re:Stupid idea by UncleTogie · · Score: 1

      Just try draw anything on paper using coffee.

      Don't mind if he does...

      --
      Don't tell me to get a life. I'm a gamer; I have LOTS of lives!
  43. Now you do not need any more excuses by slashdotlurker · · Score: 1

    For a coffee break, that is.

  44. Suspicious by vadim_t · · Score: 1

    It says that "No worries, it works just as well with tea."

    This doesn't make sense from the picture. Coffee can be ground pretty fine for espresso, but any decent tea is in loose leaves, which would most likely completely clog the tiny head pictured. Coffee is also ground in a quite variable amount of sizes, fine for espresso, pretty large for the french press.

    Not to mention the problem of figuring out how to get the tea/coffee stick to the paper.

  45. Back and forth? by Alarindris · · Score: 1

    Why wouldn't they use a hand crank instead? I would think a circular motion would require less effort.

  46. Re:10 points for coffee, minus 1M points for manua by Anonymous Coward · · Score: 0

    ...and a brazillion points for being vaporware.

  47. I immediately delete by Anonymous Coward · · Score: 0

    or discard anything that shows up on my screen or on my desk that boasts of its "green" ness. I'll not be a party to this bullshit.

  48. Re:What else are you going to use used grounds for by cbiltcliffe · · Score: 2, Funny

    Brewing your PHB's java?

    --
    "City hall" in German is "Rathaus" Kinda explains a few things......
  49. Printer on fire? by Anonymous Coward · · Score: 0

    Printer on fire? Try "Printer needs coffee"...

  50. Urinal generator: DONE! by Anonymous Coward · · Score: 0

    You just need to pipe your urinal to the "LED shower light" (ThinkGeek). It uses a turbine to power red and blue LEDs. So you can illuminate your downstairs neighbor's flickering red/green light.

    You might want to enclose the light inside a translucent drain. Unless your downstairs neighbor is a greenhouse which needs fertilizer.

    Conveniently, the ad for that light is what appeared next to your comment. Now advertisers are as clever as I am.

  51. Fresh Air by theleoandtherat · · Score: 1

    People would smell like coffee and not ass and toner.

  52. Wow! It must be eco friendly. by n6kuy · · Score: 1

    After all, its' got a green-colored front panel, and the website has green colors.

    --
    If you disagree with me on social issues, then it's pretty clear that you are a narrow-minded bigot.
  53. no motor by theeddie55 · · Score: 1

    doing away with the motor so you don't need a big power source seems daft when you've already had to find a big power source to power the computer that it's plugged into.

    1. Re:no motor by tompaulco · · Score: 1

      Not to mention that if you are going to have a person move the print head back and forth, you are going to have to feed that person, which uses more energy than the printer does.

      --
      If you are not allowed to question your government then the government has answered your question.
  54. messy by quickOnTheUptake · · Score: 1

    We focused on the ink cartridge since it is one of the problems when using a printer: it's often difficult to replace, costly to refill, and can stain your hands if mishandled.
    . . .
    2. Put the coffee or tea dregs into the ink case on the top of the printer
    . . .
    4. When the print finishes, pull out the paper from the printer and wash the ink case

    Does anyone else think that putting used grounds in the little case and then washing it out each time you want to print something is possibly not the best way to solve the problem of messy ink cartridges?

    --
    Mod points: Guaranteed to remove your sense of humor.
    Side effects may include gullibility and temporary retardation
  55. UPS by tsnorquist · · Score: 2, Funny

    Looks like the perfect printer for UPS. "What can brown do for you".

  56. Not Really Green by emarks · · Score: 1

    The biggest environmental issue from ink printers is the packaging and cartridge - not the ink itself. This "eco printer" does nothing to address the real issue.

  57. Re:holy hell. Green Zealots, this is insanity. by Grishnakh · · Score: 2, Insightful

    The problem with the "green frenzy", at least the portion of it seen in this contest, is that it puts normal people off of environmentalism, by showing environmentalists to be a bunch of stupid, overprivileged kids who rant about "saving the world" and promote stupid, unrealistic ideas like using one square of toilet paper to wipe your ass after a big dump, rather than coming up with and promoting truly useful and eco-friendly technologies and practices such as solar water heating, and other useful technologies or practices which allow people to live just as well as they do now, but with far less wasted energy and resources.

    If you want to get people interested in helping our environment (or at least doing less harm to it than they are now), coming up with idiotic ideas like a wallet that burns your hand or a printer that you have to move by hand and produces unreadable and short-lived text is only detrimental to your cause.

  58. Go brown by Attila+the+Bun · · Score: 1

    It sounds good, like the Gravity Lamp which won a green prize a while back. Until you activate a few brain cells and realise that it can't possibly work.

    Apart from the merely practical considerations of making such a device, used coffee grounds don't stick to paper, and doesn't even stain awfully well. Used coffee goes on the compost heap.

    However if there's any prize money going, I might unveil my motorbike powered by tea-bags. There are no photographs yet, but I can certainly provide a "design".

  59. Re:holy hell. Green Zealots, this is insanity. by philspear · · Score: 1

    If you want to get people interested in helping our environment (or at least doing less harm to it than they are now), coming up with idiotic ideas like a wallet that burns your hand or a printer that you have to move by hand and produces unreadable and short-lived text is only detrimental to your cause.

    The moving by hand bit is odd, but could just be a gimmie to simplify the design and also increase the odds of winning this competition. The coffee grounds for printing part is what's interesting, and on the extreme off-chance that it can actually be used for real printing, it won't be long before someone puts it into an automatic printer and sells it.

    As far as unreadable and short lived text, the thing doesn't actually exist yet, but you're telling me it's completely impossible that it will ever work right? Did I miss something, the coffee ink doesn't have to move faster than the speed of light to be readable, does it? I'll agree it PROBABLY won't ever make good printing, but don't act like it's impossible, because you have as much proof of that as the designers do that it will work great: none.

  60. Re:holy hell. Green Zealots, this is insanity. by Anonymous Coward · · Score: 0

    Being of a practical turn of mind, I just tried putting some of the dregs of my last cup of coffee on a piece of paper. The results do not look promising. I suspect that to make a usable ink you would have to take the grounds, gerind them up a lot finer, and muix them with a binding agent. By that time, you have pretty well done what they already do at the ink factory. There is also the question of fading...I don't know how much of the colour in coffee grounds is organic compounds and how much is carbon black from being roasted, but I suspect that the former component will fade quite quickly.

    Of course, it is the designers who have made the improbable claims, so it is up to them to prove them. Not that I would object to ink that was a little cheaper than Pol Roger Champagne. As it is, they have lost my business, I no longer bother with an inkjet printer at home.

  61. I've got a great green idea too by tompaulco · · Score: 1

    I have an idea for a contraption that eats raw sewage and pisses oil. What? No, I have no idea HOW it does that. This is just a DESIGN contest.

    --
    If you are not allowed to question your government then the government has answered your question.
  62. Re:holy hell. Green Zealots, this is insanity. by philspear · · Score: 1

    Of course, it is the designers who have made the improbable claims, so it is up to them to prove them.

    I think we can all agree to that.

  63. Singularity by troll8901 · · Score: 1

    It boggles my mind. And this one fightens me.

  64. The original acid paper by Nefarious+Wheel · · Score: 1

    I remember acid paper. The hippies would...

    Remember the early editions of the LA Free Press? On the masthead they printed a dot with a square border around it. The caption read "Lick this spot - you may be one of the lucky 25!" I guess that was the original acid paper.

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  65. Jesus Christ by Renegade+Iconoclast · · Score: 1

    Shampoo won a fucking competition????!!!

  66. What a waste! by rrohbeck · · Score: 1

    Coffee grounds have a high oil content and can be turned into biodiesel:
    http://www.sciam.com/blog/60-second-science/post.cfm?id=could-coffee-be-the-alternative-fue-2008-12-10

    1. Re:What a waste! by moonbender · · Score: 1

      I wouldn't bet on it, but maybe an ounce of printer ink has an environmental backpack larger than the amount of biodiesel you can get from the same amount of grounds.

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  67. But I'm Alergic to coffee by Grizzlysmit · · Score: 1

    But I'm Alergic to coffee

    you insensitive clod

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  68. ... manual labor? by Anonymous Coward · · Score: 0

    Good idea, but they forgot to add the hamster + wheel.

  69. Re:holy hell. Green Zealots, this is insanity. by Grishnakh · · Score: 1

    As it is, they have lost my business, I no longer bother with an inkjet printer at home.

    Exactly. I switched long ago to lasers; you can get LaserJets on Ebay for dirt cheap, and the cartridges (remanufactured) are dirt cheap ($25-30) and work great, and last for 5000+ pages. If someone has a
    better method than this, I'd like to see it, but I'm very skeptical.

  70. Actually, that would be not too hard by nietsch · · Score: 1

    You can heat almost any organic-water slurry and turn it into soot, oily stuff and methane, if you heat it high enough at high pressure and the absence of oxygen. then you only have the small problem of water contaminated with organic volatiles.
    I believe the process was christened Total Conversion Process or some similar marketing crap. It may be impractical, but it is not impossible to turn sewage into oil. It is both mostly carbon after all.

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