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Disappearing Ink on Thermal Paper?

dpippenger asks: "A few days ago my rear projection TV made a soft clicking noise and the color balance suddenly went a bit blue. The set was only about 3 months old and I neglected to get the in store warranty. I decided to try and cash in on the 1 year manufacturers warranty which only required an original sales receipt as documentation. I quickly opened up my file cabinet and retrieved the receipt in question. I was fairly upset to find the sales receipt was printed on a slippery thermal paper (pretty common these days) and after only 3 months was noticeably degraded. The paper was discolored slightly and important blocks of text like the model number were just gone. After some conversation at the TV repair shop they finally accepted it as proof of warranty. The problem is this receipt is my only evidence of warranty for an entire year. I have to wonder what the receipt will look like in another 9 months and if it will be unacceptable as proof of purchase next time I need repairs. Have any other readers had a similar experience or have tips on preserving these thermal receipts?"

18 of 89 comments (clear)

  1. duh by demian031 · · Score: 3, Funny
    1. a photo-copier
    2. a scanner
    1. Re:duh by pbox · · Score: 4, Funny

      Laminate it. It seems that both inkjet and thermal printers are harmed by the air just as much as by sunlight. Keep it in the dark, and laminate it...

      --
      Code poet, espresso fiend, starter upper.
    2. Re:duh by NickDngr · · Score: 4, Informative

      You seem to be forgetting that a critical part of the laminating process is extreme heat. That would just turn the whole thing solid black.

      --
      Yoda of Borg am I! Assimilated shall you be! Futile resistance is, hmm?
    3. Re:duh by itwerx · · Score: 3, Informative

      Mod parent up as funny!!!

      Or maybe troll...

      (If you don't get it, think about how thermal paper is printed, and how hot a laminator gets! :)

    4. Re:duh by coryboehne · · Score: 2, Insightful

      Funny enough I've found a much better method.

      If you purchase something from Best Buy, Office Max, Staples or other stores that have a triplicate recipt for credit cards that have seem to not work when swiped you can take advantage of that situation pretty easy... I'll spell it out for you.

      0. Contact your bank and request an additonal check/credit card.

      1. Purchase a Rare Earth Magnet with your new card. Be sure to pick one of the larger magnets available..

      2. Store your new card with your new magnet for about a week or so.. Whenever you think about it swipe the card past the magnet a few times... This will ensure that the magnetic strip on your card will be completely destroyed.. Thus they will never be able to scan this card.

      3. Now go to the store that uses said evil thermal paper recipts and purchase something with your card.. Smile as they break out the 1980's era credit card imprint tool..

      4. Profit?(or at least don't lose your proof of purchase)

      You now know how to avoid the problem in the first place while not making a scene demanding a proper receipt.

    5. Re:duh by jonadab · · Score: 2, Informative

      > You seem to be forgetting that a critical part of the
      > laminating process is extreme heat.

      The big, fast, convenient laminators work that way. The cheapo
      ones just use two rolls of clear contact paper (one top and one
      bottom), rollers, and a hand crank. Should be fine.

      --
      Cut that out, or I will ship you to Norilsk in a box.
  2. Photocopy receipts by FattMattP · · Score: 3, Informative

    I always photocopy receipts so that I have another copy. I then take the original and staple it to the photocopy and file it away with the manuals and warranry information.

    --
    Prevent email address forgery. Publish SPF records for y
  3. Send in the registration card by The+Clockwork+Troll · · Score: 2, Insightful
    In most cases, sending in the registration card along with your sales receipt "activates" your warranty.

    Could be less of a hassle in situations like yours.

    --

    There are no karma whores, only moderation johns
  4. The $50 Cookie` by NanoGator · · Score: 3, Funny

    I bought a Replay a few months ago with a $50 rebate. I placed the receipt and form on my desk at the office so when I could find a minute I'd fill it out. When I finally got around to it, I noticed something very bizarre about the receipt. There was no text on it! Puzzled, I moved the stack of papers and discovered a half eaten cookie I thought I was going to finsih the week before.

    Dammit! The oil from the cookie soaked through the receipt making it, I shit you not, transparent. Remember that episode of the Simpsons where they were at Krusty Burger and somebody rubbed the to-go bag on the wall making it transparent, and then a bird flew into it? It was just like that! Well okay a bird didn't fly into it, but I guarantee you a bird was flying when I realized I couldn't get my rebate.

    Yep, that cookie cost me $50. Didn't even finish the damn thing.

    --
    "Derp de derp."
    1. Re:The $50 Cookie` by Anonvmous+Coward · · Score: 2, Funny

      "Then it cost you $50 and half a cookie."

      He's an optimist. He lost $50, but he got 100% more cookie than he wanted.

  5. Yes by $exyNerdie · · Score: 3, Insightful


    Yes, I had similar issues with one store which I wouldnt name here. But in other case, circuit city was able to retrieve my information from their system.
    Also, in a related case where it seemed quite deliberate, the manufacturer of Western Digital hard drives had some models with like $80 mail in rebate. To get the rebate, I was supposed to cut the bar-code from the box and mail it with my receipt form. I usually make a copy of the bar-code cut-out before I mail it for the rebate. But Western Digital was smart about it. The bar-code portion was shiny metallic look so that when you try to make a photo-copy, it comes out as black due to reflection which means that you are prevented from making a photocopy. I tried many photo copy machines but no luck. I finally was able to scan it and print it which wasnt as good as the original because metallic reflection. And then I mailed it to them but never got the rebate back. I called them about 8 times over a period of 4 months and they told me that they never received it.
    So it might seem that seller's are not at fault but sometimes they use these tricks from thermal paper to using bar-code on reflective background to their advantage !!

    Just my $0.02

  6. photocopy by gmhowell · · Score: 4, Insightful

    Make a photocopy of the receipt. Register the item (I hate the latter, as it's a pain, and can lead to junk mail, but that's easier to deal with than a recalcitrant repair shop).

    I've purchased most home electronics at big box stores, like Circuit City and Best Buy. Say what you will, but there was one time I needed proof from Circuit City that I bought the item, so that I could get some warranty work (I would have let them take it, but was then living several hours away from a Circuit City). They printed out the receipt, and mailed me a new copy. I've heard tell of other people presenting a driver's license with an address matching the one in their computer, and getting a printout of the same thing.

    See, complying with all of the stuff that gets michael and the YRO gang up in arms can have benefits.

    To be 100% on point: I have no idea how to preserve that sorta thing. Store it in the freezer instead of a filing cabinet? Or put the cabinet in a sealed container of Nitrogen or CO2 or some other fairly inert gas?

    --
    Jesus was all right but his disciples were thick and ordinary. -John Lennon
  7. Credit Card Statement by smoondog · · Score: 2, Informative

    Your Credit Card Statement may work as a suitable alternative. Especially if you have an extended warrantee though your card.

    -Sean

  8. Not good enough by droyad · · Score: 3, Interesting

    Demand a non-thermal reciept for anything your going to keep longer than a week. Remember the law (at least here) says that you have to keep your reciepts (that you claim on tax) for at least 7 YEARS. This means that the Tax Office can after 7 years demand to see what you have claimed and they would be mighty pissed off if all the reciepts were blank.

  9. Iron Them... by Slipped_Disk · · Score: 2, Informative

    No, seriously... If your old thermal receipts have faded, they can sometimes be fixed by ironing them (no steam, just a hot iron or an incandescent lightbulb).

    This only works if the thermal lettering has faded but the paper is still mostly white - The heat-sensitive layer where the original letters were is desensitized and the faded letters will not re-blacken, but the rest of the receipt will, giving you a negative copy of the receipt.

    Note that this doesn't work for all thermal printer receipts, it depends on the type of paper used in the machines (the catalina coupons at most supermarkets (they print on thermal paper with red strips on the top/bottom) work, but the register tape at the supermarket I used to work at wouldn't - not sure why.

    --
    /~mikeg
  10. It's a industry wide conspiracy by Lead+Butthead · · Score: 2, Funny

    To sleez their way out of any obligations.

    1. Print receipt on thermo paper designed to degrade.
    2. Refuse to honor warrenty/exchange on broken products with unreadable receipt.
    3. Profit!

    --
    ELOI, ELOI, LAMA SABACHTHANI!?
  11. Restoring faded thermal receipts by schwazie · · Score: 3, Informative

    I've had this problem more than once, and with a bit of luck and some intuition found a method to restore the thermal "image".

    By gently heating the receipt at a distance with a hair dryer, I have been able to cause the original images to reappear. Note that too much heat will cause the entire receipt to darken, so you may want to test temperatures/distances on a blank area, such as the corner of the receipt.

    Generally, a hair dryer on medium heat at a distance of 12" or so, waved slowly back and forth, can restore the original thermal image in under a minute. Your mileage may vary.

  12. Re:I have that problem a LOT by hubie · · Score: 2, Informative
    ----->The Income Tax ammendment was never properly ratified by 2/3 of the states, and is not valid because of that. It's still enforced, but it's not valid.
    I never understood this argument because it is just blatently false, and it is so easy to check. First off, 3/4 of the states need to ratify an ammendment, which is even more formidable, but that is beside the point for this argument. The 16th ammendment was proposed in July of 1909. At that time by my count there were 46 states (50 minus New Mexico (1/6/1912), Arizona (2/14/1912), Alaska (1/3/1959), and Hawaii (8/21/1959)). The first state to ratify was Alabama (8/10/1909) and the last was New Hampshire (3/7/1913). During that time even New Mexico and Arizona ratified, bringing the state pool to 48 states. Out of those 48 states, 38 ratified the ammendment. That is two more than what was needed for ratification (0.75*48 = 36), so the remaining 10 states didn't even need to vote on it.

    One link for ratification times is found here.

    Why do people keep saying the ammendment was never ratified?

    Sorry my post is days old, but I only saw your comment via the Metamoderation page. If there is a valid argument regarding this ratification issue, please reply as I have been curious for some time as to why the non-ratification statement keeps coming up.