Poster supports any USB thermal receipt printer compatible with ESC/POS. Such printers are compatible with Poster for Windows, macOS, and in rare cases Android.
Connect a printer to Poster by USB:
- Turn on the printer. 
- Insert a paper roll inside the printer. 
- Launch Poster POS app and sign in. 
- Tap ≡ → Devices at the top right to select a printer. 
- Select ESC/POS device from the list. 
- If Epson or Sam4S are connected by USB, select a device with a brand name. 
- Wait for Poster to complete the automatic configuration 
- Enable Receipt slider to allow printing customer receipts. 
- Enable Station sliders to allow printing order tickets to Kitchen or Bar. 
- Tap Print a test receipt to see if the printer works. 
💡 If you have multiple printers connected, you can identify them by tapping Print test receipt in ≡ → Devices.
💡 To change the font size, go to ≡ → Devices, tap Settings, and set the Paper width. You can also turn on Increased ticket font size to make the font bigger for tickets only.
Standard paper width for common printers:
- Epson TM-T20II — 80 mm. 
- Xprinter Q260 — 80 mm. 
- Sam4s Ellix 50DB — 72 mm. 
Feel free to contact our customer support if you have any questions or need help with printers. We're available in chat @joinposter.com and email contact@joinposter.com
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