Slashdot Mirror


InkJet Printers Lying, Or Just Wrong?

akkarin writes in about a study reported at Ars Technica on how accurate ink-jet printers are when they report that cartridges are empty. Not very, it turns out. Epson came out on top of the study (and Ars rightly questions how objective it was, given that Epson paid for it), but even they waste 20% of the ink if users take the printers' word for when to get a new cartridge. On average, the printers in the study wasted more than half the ink that users bought.

11 of 461 comments (clear)

  1. Considering how expensive ink is by DaveCBio · · Score: 3, Interesting

    Hearing this pisses me off. I realize it's a competitive market, but every company out there charges insane amounts for ink. Hell, even the 3rd party refills are expensive. I'd rather pay the real price for a printer and have reasonable ink prices, but I guess that would kill the 1000% markup they have on ink. Laser isn't much better, but at least it doesn't feel like virtual buggering.

    1. Re:Considering how expensive ink is by BobTheLawyer · · Score: 5, Interesting

      The problem is that the printer manufacturers are now caught in this model. Nobody dares go back to charging the "real" price for the printer and the ink, as their printers would immediately seem more expensive to the average customer.

      In an ideal world the model would be unsustainable, as third party ink manufacturers would undercut the official ink packs. But the printer manufacturers have consistently abused their market position and IP law to prevent third party ink manufacturers competing on equal terms. Your average consumer doesn't even know he can get cheap alternatives, and life is increasingly difficult for even sophisticated consumers as the printer manufacturers build in IP-protected electronics into ink cartridges.

      All in all, it's clearly bad for consumers and the kind of thing the competition/anti-trust authorities should be investigating.

    2. Re:Considering how expensive ink is by jonwil · · Score: 4, Interesting

      Thankfully lawsuits like Lexmark vs. Static Control have shown that using "IP laws" to prevent someone from making 3rd party spare parts wont fly.
      I believe that current case law basically says that it is perfectly legal to cleanroom the special circuitry from a printer cartridge in order to produce 3rd party ink cartridges and that the printer manufacturers cannot stop it. (ob IANAL disclaimer)

    3. Re:Considering how expensive ink is by Bacon+Bits · · Score: 4, Interesting

      Heck, if you're going to go that far, an ideal world would not need printers at all. Save the trees, man.

      --
      The road to tyranny has always been paved with claims of necessity.
  2. Wow, I just came here to submit this by farker+haiku · · Score: 3, Interesting

    Although I heard about it from ecogeek. It has links to the Ars Technica article also, but I really just wanted to point out the nice Office Space picture.

    --
    Your sig(k) has been stolen. There is a puff of smoke!
  3. Surprised? by db32 · · Score: 4, Interesting

    Given all of the insanity surrounding refilling ink cartridges, DMCA lawsuits, "authenticity checks" on cartridges, and the give them the printer sell them the cartridges style business is anyone, anyone at all, even remotely surprised, maybe even just raised an eyebrow, that the vendors would stoop so low as to have the printer lie to you to get you to go buy another "DMCA protected authentic cartridge we are gunna sue you if you try to refill it" item that costs nearly as much as the stupid printer did in the first place as often as possible?

    I am just gunna call "well duh" on this whole thing. I have worked with HP laserjets that told me I had 200 pages left that I could print. After printing 192 pages it told me I could still print 320 pages. All said and done that day, I had printed some 500 pages and its final number was that I could still print another 250ish pages. Whether they lie, or their math is freaking horrible for figuring it out is up for debate I suppose, but given the problems we have had with that same model and HP accusing us of theft because a brand new HP cartridge out of the box was determined to be not authentic by the stupid machine...well I assume they are just out for blood. 4 hours of fighting with their technician to have them exchange the stupid cartridge.

    --
    The only change I can believe in is what I find in my couch cushions.
  4. Fucking HP Photosmart D7360!!! by brxndxn · · Score: 4, Interesting

    I bought an HP Photosmart D7360 a few months ago.. Since then, I've printed at least a thousand 4x6 photos. I've changed the ink a bunch of times.. but I always wait until I finally see a photo print with low ink.

    However, if I use the lame HP software that starts up with my computer (and slows it down quite a bit), it flat out refuses to let me print unless I change 'empty' cartriges first. It also annoys the living hell out of me with 'low ink' popups while I'm playing video games or doing other things - like the printer is the whole fucking reason I exist.

    In Ubuntu, I just use whatever driver it found for my printer... and I can print beautiful prints with 'empty' cartriges. It pisses me off..

    But, I will admit, I really do get about 200 4x6 photos with a single set of cartriges like HP advertises.. this is the first printer I've had (besides laser of course) that actually lives up to how many prints it advertises.

    --
    --- We need more Ron Paul!
  5. we are humans right? by escay · · Score: 3, Interesting

    so wait - the inkjets report that cartridge needs replacement and people just do it? whatever happened to visual inspection?! We have a Dell color printer (laser, not inkjet but same argument) which starts giving out the "replace cartridge soon" message about ~1000 pages in advance. So we buy the cartridge, keep it on hand, and only replace it when we actually see that the print quality is considerably degraded. I can understand the problem if the inkjet stops printing anything at all based on its preemptive warning messages (like a software lockdown), but if it continues to work irrespective of the amount of ink then just look at the output and make your decision.

    In fact, I would rather have the machine give the warning earlier than later so I can have one ordered and ready to replace when the need comes, instead of waiting for all the ink to dry out and the printer goes out of service until the cartridges arrive.

  6. Laserjets do this too.. by MousePotato · · Score: 5, Interesting

    Wow, this has been one of those things that really piss me off for quite some time. While it is true that the laser jet printers do better than inkjets they ALSO LIE and ARE DESIGNED TO FAIL.

    For example; I bought a laser two years ago (from a company that rhymes with hell). I bought it because I needed to print letters to clients and do things like print checks. Nothing heavily graphics intensive nor really heavy duty text work either.

    So here is what I discovered with my 'efficient' laser printer; My '5000 page' toner cartridge prints about 1000 pages. Pissed, I decided to open one up as they are about $100 for a new one.

    Lo and behold it was still full of toner. Somehow, as the printer printed the quality of the prints degraded as the toner 'ran out' a little more with each print. At the time I figured this was because there was no toner but the proof was now in my hands (and all over my desk for that matter) so I decided to investigate further. It seems that these toner cartridges use chips to tell your pc that its running out each time you print.

    Now, I'm not electronics guru, so I don't have a machine I can actually read the chip with, but I am under the impression that this chip also purposefully degrades the quality of your prints as it counts down your toner level. To test that theory I ordered some refill kits off of the web.

    First thing I noticed after doing the chip replacement was that the quality of the prints immediately improved. I printed for several weeks, noticed the quality go down again, replaced the chip (no toner added in there yet...) and viola worked beautiful. When that chip said it was empty I opened the whole thing up again and took a look. This time it was indeed very low, but not empty. I poured in the new bottle of toner and put in a new chip and went back to work.

    I usually order 3 chips for each bottle of toner I purchase . Currently I get about 4000 pages per bottle of toner. My refill purchases cost me $29 for two bottles of toner and six chips (on chip comes with each bottle and I add the other four to the order) Let's see$200 vs $29 for two 'cartridges' worth of prints... hmmm.... yeah I'll refill. Add to that the fact that the purchased carts don't get the same mileage as the refilled ones with extra chips to replace the old ones.

    I guarantee I will never buy another 'rhymes with hell' printer again.

    Caveat emptor indeed.

  7. Re:Ummm.... by morie · · Score: 3, Interesting

    My tool? sticky tape. Works like a charm on HP: tape of one contact, insert cartridge, tape of another, insert, then remove all tape and reinsert. It seems to have a memory of 3 cartridges.

    --
    Sig (appended to the end of comments I post, 54 chars)
  8. Several semi-plausible "reasons" for this by Ancient_Hacker · · Score: 3, Interesting
    I have unfortunate first-person experience for why printers underestimate the amount of ink:
    • They sell more expensive ink that way.
    • You'll notice your typical printing regimen uses much less yellow than the other shades, so if it's a trui-color cartridge, unless you're printing a lot of "skin tones", the yellow section will tend to still be mostly full when the other ones have run out, or at least "low".
    • Many printers try to estimate the amount of ink used, but if you remove a print cartridge or reset the printer EROM, or the cartridge contacts get intermittent, many printers when they see a "unknown but used cartridge, assume it has unknown quantity and assume the worst.
    • The printers with separate print heads and ink cartridges have a serious problem-- if the printhead runs out of ink the little teeasy tiny microscopic print head resistors blow out, requiring an expensive $40 printhead. On a HP D1xx printer, there are four of these. So the printer signals "ink low" when it's really probably still 1/3 full, just to protect the printheads.
    • The printers with separate print heads and ink cartridges can get air-bubbles in the plumbing between ink cartridge and printhead if the ink runs low, leading to poor printing and printhead blowouts, so again they thy to err on the safe side.
    Not very good reasons, but there they are...