ESC/POS Receipt Printer Emulator

🖨️ This app emulates a networked receipt printer to test your ESC/POS commands against.

About

• Windows application (WPF + .NET 6)
• Binds to a TCP/IP interface and listens for ESC/POS commands
• Logs commands and visually represents the resulting receipt(s)
• With italics text cutting bug corrected

👷 This is a working in progress. Use at your own risk and keep your expectations low. :)

Supported commands

⚠️ Support is currently limited to only a subset of ESC/POS. Even the commands listed here may only be partially implemented.

• Raw Text
• FF: Form feed
• HT: Horizontal tabs
• LF: Line feed
• CR: Carriage return
• ESC Commands:
  • Initialize printer (ESC @)
  • Toggle italic (ESC 4 / ESC 5)
  • Select font (ESC M)
  • Select justification (ESC a)
  • Select line spacing (ESC 2 / ESC 3)
  • Toggle emphasis (ESC E)
  • Toggle underline (ESC -)
  • Set print text mode (ESC !)
  • Paper full cut (ESC m)
  • Paper partial cut (ESC i)
  • Paper feed N lines (ESC d)
  • Paper feed (ESC J)
• FS Commands:
  • Print stored logo (FS p)
  • Paper auto cut (FS })
• GS Commands:
  • Select character size
  • Select cut mode and cut paper
  • Paper eject (GS e)

Emulated printer

This program emulates a printer with the following specifications:

• 80mm paper width
• 76mm printing width
• 203x203dpi
• ASCII Font A: 12x24 pixels
• ASCII Font B: 9x24 pixels
• ASCII Font C: 24x48 pixels
• ASCII Font D: 16x24 pixels
• Automatic line feed

References

https://aures-support.com/DATA/drivers/Imprimantes/Commande%20ESCPOS.pdf
https://www.starmicronics.com/support/Mannualfolder/escpos_cm_en.pdf
https://www.printercontroller.com/kcfinder/upload/files/esc_pos_commands_1_0_7.pdf
https://www.electronicaembajadores.com/Datos/pdf1/i5/i5tm/i5tm004.pdf
https://download4.epson.biz/sec_pubs/pos/reference_en/escpos/
https://escpos.readthedocs.io/en/latest/commands.html
https://tabshop.smartlab.at/help-topics/help-esc-pos-codes.html