241–250 of 259 posts
Somewhat relevant, I use this little script to open front page of NYTimes daily morning on my macbook: d=$(date +%d) m=$(date +%m) y=$(date +%Y) wget -q https://static01.nyt.com/images/$y/$m/$d/nytfrontpage/scan.p... && open ./scan.pdf
Somewhat relevant, I use this little script to open front page of NYTimes daily morning on my macbook: d=$(date +%d) m=$(date +%m) y=$(date +%Y) wget -q https://static01.nyt.com/images/$y/$m/$d/nytfrontpage/scan.p... && open ./scan.pdf
I made an RSS feed of these front-page images a while ago if anyone wants to use them: https://nytonline.net/rss
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I can't find any evidence that anyone has ever died from bisphenol-A poisoning. Searching the medical literature finds no case studies of emergency-room visits or dying epoxy painters. Rat studies like https://citeseerx.ist.psu.edu/document?repid=rep1&type=pdf&d... and https://www.researchgate.net/publication/236345183_Pathologi... come up with acutely lethal oral doses around 2000–3000 milligrams per kilogram, by wh…
>I can't find any evidence that anyone has ever died from bisphenol-A poisoning. That's like talking about cigarettes and claiming people don't die from nicotine, therefore smoking isn't a problem. Missing the point terribly.
Perhaps your intended reference, however, is to the other toxic components of cigarette smoke, such as benzo[a]pyrene. That is, cigarettes kill something like one out of ten people, but the vast majority of those deaths are not due to nicotine. (Except in the indirect sense that nicotine is addictive and induces people to smoke cigarettes so that they are exposed to the other poisons in the smoke.)
Very well, then. What are the other toxic components of thermally printed receipts you're concerned about?
I'm open to hearing what point you think I'm missing, but so far all you've done is strike a pose of fatigued knowingness. If you have knowledge to share on this matter, by all means, share it; certainly I won't be the only one who needs the point spelled out for them, because as dumb and uninformed as I admittedly am, I doubt I'm the dumbest or least informed person reading this thread.
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Receipt printers are fun but take care not to buy toxic paper https://www.consumerreports.org/cro/news/2014/03/the-health-...
The most mainstream phenol free thermal paper out there is one made from a branded chemical "pergafast" which is supposedly based off of urea. This is increasingly the type used by big brand stores where the paper is advertised as BPA and BPS free. It appears safe in studies so far in terms of not being absorbed through the skin nor endocrine disrupting, but is also known to be highly toxic to aquatic life. There's a…
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> it's not "toxic" by the usual definitions iirc if you have wet hands you absorb way more and it is toxic
I can't find any evidence that anyone has ever died from bisphenol-A poisoning. Searching the medical literature finds no case studies of emergency-room visits or dying epoxy painters. Rat studies like https://citeseerx.ist.psu.edu/document?repid=rep1&type=pdf&d... and https://www.researchgate.net/publication/236345183_Pathologi... come up with acutely lethal oral doses around 2000–3000 milligrams per kilogram, by wh…
I bet it's mostly just sugars. That and plain overconsumption and lack of exercise. Excacerbated by societal shifts that mean people don't get shamed into behaving better as much as they used to be. Trying to blame evil chemicals for making you fat is just a cope for those that don't want to take any responsibility for their unhealthy lifestyle - even if there are additives that "promote obesity" it's going to be a relatively minor effect compared to the basic energy in vs. energy out balance.
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IIRC, Apple employed the maintainer[1] of CUPS - which is/was available on MacOS for network printing, and has been available on Linux for even longer. I would be surprised if the feature was not available on Linux for your printer. Edit: added footnote 1. The chief maintainer - not the only maintainer, between 2007-2019
I know about CUPS. There is no real alternative on Linux, is there? But it doesn't work like on macOS. I am sure they added some of magic on top. On macOS I think it either recognized my printer or I had to select it from a list. I don't remember which for sure. It was a few years ago. On Linux my Brother printer is not on the list. Brother offers a deb and rpm packages which may be obsolete for all I know. Then you…
But you should in theory also be able to do this without any Brother-specific driver since pretty much all modern printers speak IPP for mobile device compatibility.
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That is wrong. CUPS recommends using the IPP protocol , but the IPP driver (called “IPP Everywhere”) is only available on relatively modern printers. Everything else still has to use drivers, mostly PPD.
Any CUPS daemon will raise the following warning on startup. I just copied this from my Systemd log: cupsd[873]: Printer drivers are deprecated and will stop working in a future version of CUPS. See https://github.com/OpenPrinting/cups/issues/103 Not saying this is the correct decision, but IPP Everywhere is available on most printers that are < 10 years old. Obviously, that rules out older printers, which are fairly…
> As for printer drivers, those few printers that "need" them can migrate to standalone applications/services using the CUPS API to provide an IPP Everywhere-compatible Printer instance. PAPPL provides a convenient framework for easily creating these applications and porting existing CUPS raster drivers, and the following printer applications are already available or (in the case of Gutenprint) under development:
[...]
> ps-printer-app: PAPPL-based PostScript printer application that supports all CUPS/PostScript printers via PPDs and includes all of the Foomatic and HPLIP drivers.
So drivers will still be supported in a sense, just not directly by the CUPS daemon.
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Any CUPS daemon will raise the following warning on startup. I just copied this from my Systemd log: cupsd[873]: Printer drivers are deprecated and will stop working in a future version of CUPS. See https://github.com/OpenPrinting/cups/issues/103 Not saying this is the correct decision, but IPP Everywhere is available on most printers that are < 10 years old. Obviously, that rules out older printers, which are fairly…
I have a Brother printer from 2019 (HL 2340) that does not support IPP Everywhere. A lot of other printers from before ~2020 don’t either. You are (like so many other people) confusing IPP the protocol with IPP the driver, which is honestly not your fault and a terrible naming mistake. And like you mentioned, people have way older printers because if all you do is print monochrome and mostly text, a printer from 2004…
So yes, CUPS itself will only support IPP without any printer-specific driver. Since mobile phones also only directly support IPP this sounds like a reasonable decision.
So, curiosity today. One of the things that this person does is simply echo to /dev/lp0. Which is all you did back in the day. Shove text down the interface, and the printer printed. Now, while we have very fancy modern printers, they're still printers with a long legacy. Even back in the day, early HP laser printers worked like this. Shove data down the wire, and it printed (Courier 10, 66 lines per page). Only the…
I just tested this on OS X, which doesn't expose printers through /dev/ in the way you're describing as far as I can tell. But apparently lp exists on OS X, so you can do echo "Hello printer" | lp -d , and find the name through lpstat -p. And sure enough, this works! Just tested on my new printer.
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Yeah, I'm surprised this works. I expected some complex printer-specific reverse engineered protocol.
The modern "protocol" is PDF. That's what everyone standardised on during the rise of smartphones and needing to have them able to print. PDF includes pretty much all the printer needs, like pagesize, colour palette, font information, etc. It's not the greatest format in the world... But everyone can shove in one of dozens of PDF parsing libraries without a lot of effort. So it happened.