Since some still need non-digital means to convey information: Open printer is coming. Background article: https://www.techspot.com/news/109674-open-printer-fully-open-source-inkjet-drm-free.html
Print Specs
- Black & White: 600 dpi
- Color: 1200 dpi
- Printhead compatibility: HP 63 (US), HP 302 (Europe)
- Ink cartridges: use only one (black or color) or both (black and color), refillable
- Speed: TBD
Supported paper formats
- North American letter, tabloid, and 11-inch wide paper roll
- European A4, A3, and 27 mm-wide paper roll
Processing
- Main board: Raspberry Pi Zero W
- Cartridge board: STM32 MCU
Interface
- Display: 1.47-inch, 172 x 320 TFT LCD
- Button: Jogger wheel
Connectivity
- USB Type-C (computer)
- USB Type-A (for USB mass storage device)
- Wi-Fi 802.11ac
- Bluetooth 4.1
Power: 24 V DC supply, 2.1 mm DC-in jack
Compatibility: Windows, macOS, Linux, Android, iPhone (uses the CUPS open-source print server)
Dimensions: 50 x 10 x 11 cm (19.7 x 3.9 x 4.3 in)
Open Source
Open Printer will use the Creative Commons BY-NC-SA 4.0 license for all of its files, including electronics and mechanical design files, firmware code, and the bill of materials. We hope that people will be able to repair, upgrade, and contribute improvements to their printers.