Show HN: Driverless print server for legacy printers, profit goes to open-source
* Supports all OS: Windows, macOS, Linux, iOS, Android. No drivers needed. Windows-on-ARM and Apple M1/2/3/4 also supported.
* Supports the majority of printers released before ≈2018
* Profit from sold devices is shared between CUPS, SANE, AirSane open-source printing and scanning projects
* Surplus and donations are accumulated to improve current open-source drivers and develop new ones
All of this is bundled in a retail-like device, with simple web interface[1][2]. No tinkering and no DIY required, it's safe to plug off the power cord every time, and you can do factory reset.
The print server is secure by default: it conforms to most of the IoT Device Security Specification 1.0[3] best practices, has built-in firewall to ensure LAN-only operation, and does not include anti-consumer features.
All devices come with technical support, where I act as a middleman between all the involved projects and printer drivers. If there's a bug, I first try to debug the issue remotely, and if it's not possible, end up buying the same printer and debug it until the issue is resolved. All the fixes made during the development are contributed back to the origin projects, and there were many bugs fixed: almost every package has additional patches compared to original Debian 12 disto state.
[1]: https://printserver.ink/webface-main.png
[2]: https://printserver.ink/webface-other.png
[3]: https://csa-iot.org/wp-content/uploads/2024/03/23-80986-013-...
P.S. Brother printer lovers, the latest Brother L2800dw (2024) laser comes with the chipped cartridge, which you can't refill and reset forever anymore. The printer allows to continue printing with an "empty" cartridge with a special menu item, but it does so only to fixed amount of pages, and then stops. It doesn't allow to use cartridges without chips.
I'll pass until that's normal.
When I sell the print server, I ask the buyer for the printer model, check its compatibility, and sell the device + guarantee that it would work for the buyer's printer. If it doesn't work properly, I'm first trying to debug remotely, and I could not fix it, I'm buying the same printer on flea market and debugging and fixing it until it works, and contribute the fix to CUPS/SANE/printer driver package.
In other words, I sell tech support in a package, and I just don't sell the print server if it's incompatible with the printer.
The goal of this project is to provide *ready-to-use, no-DIY device*, to improve the underlying software by directly contributing to it, for anyone to benefit from the fix. If you want to contribute to the printing stack and already know where to start, you should improve relevant projects, such as CUPS, SANE, printer and scanner drivers.
Selling Free Software <https://www.gnu.org/philosophy/selling.en.html>
> Many people believe that the spirit of the GNU Project is that you should not charge money for distributing copies of software, or that you should charge as little as possible—just enough to cover the cost. This is a misunderstanding.
> Actually, we encourage people who redistribute free software to charge as much as they wish or can. If a license does not permit users to make copies and sell them, it is a nonfree license. If this seems surprising to you, please read on.
You can buy only the firmware package as well, without the device. I'll send you the instruction on how to configure everything and which hardware modifications are required.
Edit: Apparently I misread the title.
Additional software (web interface, scripts, utilities) is free, the source code is included in the source package.
The customer is provided with the source code of the firmware components, and with the build system based on mkosi[1] to build the complete firmware: starting from bootstrapping Debian 12 builder image which cross-compiles the packages with additional patches and builds additional software, to ARM Debian 12 image with everything compiled in the previous stage, to the final squashfs OS file and MicroSD image.
[1]: https://github.com/systemd/mkosi
It's not that impossible than you may think: several Chinese companies have their own domestic laser printers, claiming of in-house components and development (Cumtenn, ZoneWin), and one company does inkjet printers in addition to lasers (Deli Printer).
You are only required to provide source to the users of your software.
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With regards to the software, it is open source but OP is only providing the code to customers who receive the end product. In part, OP is acting as a distributor of the software and is charging a fee for that distribution.
If anyone else gets their hands on that software, they can choose to become a distributor and make it publicly available. It’s their freedom to do so.
A overly simple way to look at is is that OP is choosing (as a small part of their business) to charge for the distribution of the source code but not the source itself.
In reality, it’s unlikely that OP will have a customer who only wants the source code and is willing to pay a fee for the distribution of it. Their customers are coming to them for the service and support.
(I use the Pi with thermal 4x6 label printers that use either ZPL or variant thereof, to access them either by Wi-Fi or Bluetooth.)