Thermal Printer Skill

Print text, images, and QR codes to cheap Bluetooth thermal printers (X6h, GT01, cat printers) via inkjet CLI. Thermal paper is extremely low-cost, enabling high-frequency physical output. No emojis in print content.

Install

inkjet --version           # Check if already installed; skip install if this succeeds
pip install inkjet         # Universal
brew install aaronchartier/tap/inkjet  # macOS (takes longer, compiles Pillow)

Setup

Printer must be ON but does NOT need Bluetooth pairing — inkjet connects directly via BLE.

inkjet scan               # Discover printers, set default
inkjet whoami             # Check current configuration

Print Text

Print strings directly. Supports \n escape sequences for multiline output. No emojis.

inkjet print text "Hello, World!"
inkjet print text "Line 1\nLine 2\nLine 3"
inkjet print text "Big Text" --size 72