🔌 USB to CN36 Cable
(USB Type‑A to Centronics 36‑Pin • IEEE‑1284 Parallel Printer Bridge)
This cable provides a bridge between modern USB ports and legacy printers that rely on the CN36 Centronics parallel interface. It is most often used to keep older printers operational in modern environments.
🔧 Cable Form
- USB Type‑A male ↔ CN36 male (36‑pin Centronics)
- Integrated chipset converts USB to IEEE‑1284 parallel signaling
- Typical length: 6ft
- Plug‑and‑play on most operating systems (Windows, macOS, Linux)
🖥️ Compatible Devices
- Printers: Dot‑matrix, inkjet, and early laser printers with CN36 parallel ports
- Scanners: Some legacy flatbed scanners with Centronics connectors
- Plotters: Older drafting/engineering plotters using IEEE‑1284
- Industrial gear: Specialized equipment with CN36 parallel interfaces
✅ Common Uses
- 🖨️ Printing from modern PCs to legacy parallel printers
- 🧵 Maintaining legacy systems in offices, labs, or factories
- 🧪 Connecting test equipment that still uses CN36 parallel ports
- 🧩 Extending the life of older hardware without needing ISA/PCI parallel cards
🧠 Signal Format
- ⚡ USB 1.1/2.0 host side
- 🔌 IEEE‑1284 parallel signaling on CN36 side
- 🔁 Bi‑directional data transfer (ECP/EPP modes supported on many chipsets)
- 📏 Data rates up to 12 Mbps (USB 2.0 full speed)
⚠️ Things to Watch Out For
- 📉 Printer‑only — most USB‑to‑CN36 cables are designed for printers, not general parallel devices
- 🔌 Not interchangeable with DB25 parallel adapters (different connector geometry)
- 🧯 Requires OS support — some modern systems may need generic USB‑printer drivers
- 📏 Cable length is limited; long runs may cause signal issues
🛠️ Quick Tips for Beginners
- 🧭 Confirm your device has a CN36 Centronics port, not DB25 or proprietary parallel
- 🔌 Use with parallel printers only — not suitable for SCSI or other 36‑pin connectors
- 🧪 If printing fails, check driver settings (USB‑printer class driver)
- 🧯 Keep a spare if you rely on legacy printers in production


