Open Printer! This is how inkjet printing works!

The Open Printer is a damn compact, open-source, repairable, and, in terms of running costs, inexpensive inkjet printer. Find out why we want to build the Open Printer here as soon as possible.

Kickstarter and Indiegogo are crowdfunding platforms where individuals can support new products financially. Unlike online marketplaces, backing a project does not guarantee you will receive a finished product, so there is a risk that a project may not be completed as planned or that rewards may not be delivered.

The concept: A printer for hobbyists and creatives

The Open Printer is designed as a fully open system. Its computing unit is a Raspberry Pi Zero W, and the firmware is open source, so anyone can view or modify the code. Openness extends to the hardware too: it uses standard, readily available components, and many parts are 3D printable.

Most importantly, there are  no DRM locks . The printer uses the widely available  HP 63 (or HP 302 in Europe) ink cartridges , which are easy and inexpensive to refill. No more having to buy overpriced original ink.

Clever design: paper from the roll and wall mounting. The design of the Open Printer is also refreshingly different. With its elongated dimensions of 50 x 10 x 11 cm, the Open Printer can not only be placed on a desk or taken anywhere, but can also be mounted on the wall to save space. So, if someone asks you about this "futuristic kitchen roll dispenser on the wall," you simply reply: "Nope, that's my Open Printer."

The highlight, however, is the paper feed. Instead of just swallowing individual sheets (A4, A3), the Open Printer can also be fed from paper rolls. An integrated cutter then cuts the paper either to standard sizes or allows the printing of long banners and strips – offering creative freedom for artists and hobbyists.

It is operated via a small 1.5-inch TFT display and a rotary dial. Also included is a USB-C port for direct connection to a PC or other device, as well as a USB-A port for printing files via USB stick. Thanks to Wi-Fi, Bluetooth, and the open-source print server CUPS, it can also be conveniently controlled from any computer or smartphone (Windows, macOS, Linux, Android, or iOS).

The dream for DIY enthusiasts and makers, but with a catch?

The Open Printer is a statement. The tinkering aspect, the portability for on-the-go use, and the potentially low running costs thanks to refillable standard ink are all ingenious. At first glance, it's a dream come true for any maker who wants to regain control over their hardware.

However, there's still a small catch: The price for the DIY kit hasn't been announced yet, and funding will be provided through a crowdfunding campaign on Crowdsupply. Participating in crowdfunding means you may not receive a finished product even if you pledge, so review the risks carefully (see disclaimer above). While all components are supposed to be standard parts, the so-called BOM (Bill of Materials)—a detailed list of all required components—hasn't been published yet. Depending on how expensive individual "standard components" end up being, the cost of DIY or repair could turn out to be higher than expected. Nevertheless, the idea is brilliant, and we'll definitely keep an eye on this project.

FAQ – Frequently asked questions about Open Printer

Do I have to assemble the printer myself?

It's not confirmed yet. Ready-made devices and kits will likely be available. You might also build one from parts, as the project is open source.

What ink can I use?

The printer uses standard HP 63 (US) or HP 302 (Europe) cartridges in black, white, or color. These DRM-free cartridges are easy to refill and affordable.

What's special about this paper format?

The printer handles single sheets (A3/A4) and rolls. The built-in cutter trims paper to size or prints long banners.

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