inkjet

What This Skill Does

The inkjet skill enables your OpenClaw agent to interact directly with low-cost, portable Bluetooth thermal printers. By bypassing the traditional operating system print spooler and connecting directly via Bluetooth Low Energy (BLE), this skill turns your MacOS device into a hub for physical output. It supports printing formatted text, high-fidelity Markdown, images, and QR codes, making it perfect for generating real-time physical artifacts like receipts, logs, labels, or instant information cards.

Installation

To integrate this skill into your environment, use the OpenClaw management CLI: clawhub install openclaw/skills/skills/aaronchartier/inkjet Once installed, ensure your thermal printer is powered on. Run inkjet scan to discover your hardware and use inkjet config set printer <UUID> to establish your default device. No complex pairing via MacOS system settings is required.

Use Cases

• Inventory & Organization: Generate custom QR-coded labels for storage bins or physical assets.
• Automated Logging: Print system status logs or error reports to physical paper for offline debugging.
• Retail/Point of Sale: Create custom, Markdown-formatted receipts or order tickets for local business processes.
• Interactive Notifications: Allow your agent to leave physical reminders or 'to-do' lists on your desk automatically.

Example Prompts

1. "Inkjet, print a markdown-formatted summary of my current project's progress from today's logs."
2. "Print a QR code containing the link to the OpenClaw documentation and label it 'Docs' using the inkjet skill."
3. "Print 'Task Completed' in large font and feed the paper 200 units so I can tear it off easily."

Tips & Limitations

• Formatting: Keep in mind that thermal printing is black and white. Use the --dither flag for images to ensure clarity. Emojis are not supported, so rely on text-based symbols instead.
• Configuration: You can manage multiple printers using aliases. If you have a fleet, use the --address flag to route specific tasks—like receipts—to specific hardware. Always remember to check inkjet whoami if you suspect the agent is targeting the wrong device. Thermal paper is heat-sensitive; avoid high-energy settings if your printouts appear too dark or blurred.