Tauri Plugin thermal-printer

This plugin provides thermal printer functionality for Tauri applications, allowing you to print documents, test printers, and list available printers.

| Platform | Supported | | -------- | --------- | | Linux | ✅ | | macOS | ✅ | | Windows | ✅ | | Android | ❌ | | iOS | ❌ |

For mobile applications, this plugin is currently working on this...

Table of Contents

• How it Works
• Installation
  • Rust
  • Bun / NPM / PNPM
  • lib.rs
  • Permission
• Functions
  • List Printers
  • Test Printer
  • Print Document
• Section Types
  • Title
  • Subtitle
  • Text
  • Feed
  • Cut
  • Beep
  • Drawer
  • Qr
  • Barcode
  • Table
  • DataMatrix
  • Pdf417
  • Image
  • Logo
  • Line
  • GlobalStyles
• Examples

How it Works

This plugin acts as a translator between a user-friendly JavaScript/TypeScript API and the low-level ESC/POS binary commands that thermal printers understand.

Architecture

Frontend (JavaScript/TypeScript) 
    ↓ (IPC Commands)
Tauri Core (Rust)
    ↓ (Platform-specific implementations)
Operating System (Linux/macOS/Windows)
    ↓ (Raw binary data)
Thermal Printer (ESC/POS protocol)

Core Components

1. Data Models (src/models/)

• PrintJobRequest: Main structure defining a print job
• PrintSections: Enum with all printable content types (Title, Text, Table, QR, etc.)
• GlobalStyles: Formatting styles (bold, alignment, size, etc.)

2. Tauri Commands (src/commands.rs)

Three main functions exposed to the frontend:

• list_thermal_printers(): Lists available printers
• print_thermal_printer(): Prints a document
• test_thermal_printer(): Runs functionality tests

3. Print Processing (src/process/process_print.rs)

Converts data structures into ESC/POS binary commands:

pub fn generate_document(&mut self, print_job: &PrintJobRequest) -> Result<Vec<u8>, String>

4. OS Integration (src/desktop_printers/)

• Linux/macOS: Uses CUPS system (lpstat, lp commands)
• Windows: Uses WinAPI (Windows API) to directly access system printers via functions such as EnumPrintersW for listing printers, OpenPrinterW for opening printer handles, and WritePrinter for sending raw data
• Android: Basic structure present, not yet implemented

Workflow

Printing a Document:

1. Frontend sends PrintJobRequest with sections and configuration
2. Tauri receives the command and processes it in Rust
3. ProcessPrint converts each section into ESC/POS commands
4. Operating System sends binary data to the printer
5. Thermal Printer interprets ESC/POS commands and prints

Print Structure Example:

{
  "printer": "TM-T20II",
  "paper_size": "Mm80",
  "options": {
    "cut_paper": true,
    "beep": false
  },
  "sections": [
    {"Title": {"text": "My Title"}},
    {"Text": {"text": "Normal content"}},
    {"Table": {"columns": 3, "body": [["A", "B", "C"]]}}
  ]
}

ESC/POS Protocol

The plugin translates all sections into ESC/POS (Escape Sequence for Point of Sale) commands, the de facto standard for thermal printers:

• \x1B\x40 - Initialize printer
• \x1B\x61\x01 - Center text
• \x1B\x45\x01 - Enable bold
• etc.

Supported Content Types

• Text: Title, Subtitle, Text with optional styles
• Codes: QR, Barcode, DataMatrix, PDF417
• Media: Images, Logos
• Control: Feed, Cut, Beep, Cash Drawer
• Tables: Configurable columns
• Lines: Horizontal separators

Platform Status

• ✅ Linux: Fully functional (CUPS)
• ✅ macOS: Fully functional (CUPS)
• ✅ Windows: Fully functional (WinAPI)
• ❌ Android: Basic structure present, not implemented
• ❌ iOS: Not implemented

Supported Connections

• USB: Direct USB port connection
• Network: TCP/IP (port 9100 typical)
• Serial: RS-232 (less common)
• Bluetooth: For Android (when implemented)

Installation

Rust

cargo add tauri-plugin-thermal-printer

Bun / NPM / PNPM

bun add tauri-plugin-thermal-printer

This library not only contains the connector to the backend. Also adds the types for the print structure...

lib.rs

Don't forget to add this line

.plugin(tauri_plugin_thermal_printer::init())

Permission

Modify the file in /file/to/project/capabilities/default.json, and add:

{
  "permissions": [
    "core:default",
    "thermal-printer:allow-list-thermal-printers",
    "thermal-printer:allow-print-thermal-printer",
    "thermal-printer:allow-test-thermal-printer"
  ]
}

Alternative Installation

git clone https://github.com/luis3132/tauri-plugin-thermal-printer
cd tauri-plugin-thermal-printer
cargo build --release && bun i && bun run build

on src-tauri project file

[dependencies]
tauri-plugin-thermal-printer = { path = "../../tauri-plugin-thermal-printer" }

on package.json

"dependencies": {
  "tauri-plugin-thermal-printer": "file:../tauri-plugin-thermal-printer"
}

Functions

List Printers

Get all printers available in the system. It just lists the configured printers...

Request:

import { list_thermal_printers } from "tauri-plugin-thermal-printer";

const response = await list_thermal_printers();

Response

[
  {
    "name": "TM-T20II",
    "interface_type": "USB",
    "identifier": "usb://EPSON/TM-T20II",
    "status": "IDLE"
  },
  {
    "name": "Star TSP143III",
    "interface_type": "NETWORK",
    "identifier": "192.168.1.100:9100",
    "status": "IDLE"
  }
]

Response fields (array of PrinterInfo):

• name (string): Name of the printer
• interface_type (string): Interface type (e.g., "USB", "NETWORK")
• identifier (string): Unique identifier (e.g., USB path or IP:PORT)
• status (string): Current status (e.g., "IDLE", "BUSY")

Test Printer

Send a print test to a specific printer to verify functionality.

Request:

import { test_thermal_printer, type TestPrintRequest } from "tauri-plugin-thermal-printer";

const response = await test_thermal_printer({
  "printer_info": {
    "printer": "TM-T20II",
    "paper_size": "Mm80",
    "options": {
      "cut_paper": true,
      "beep": true,
      "open_cash_drawer": false
    },
    "sections": [] // it's not going to print anything
  },
  "include_text": true,
  "include_text_styles": true,
  "include_alignment": true,
  "include_columns": true,
  "include_separators": true,
  "include_barcode": true,
  "include_barcode_types": false,
  "include_qr": true,
  "include_image": false,
  "image_base64": null,
  "include_beep": true,
  "test_cash_drawer": false,
  "cut_paper": true,
  "test_feed": true,
  "test_all_fonts": false,
  "test_invert": false,
  "test_rotate": false
} as TestPrintRequest)

Request parameters (TestPrintRequest):

| Parameter | Type | Required | Description | |-----------|------|----------|-------------| | printer_info | PrintJobRequest | ✅ Yes | Printer configuration (see Print Document) | | include_text | boolean | ❌ No | Basic text test (default: true) | | include_text_styles | boolean | ❌ No | Text styles test (bold, underline, inverted) (default: true) | | include_alignment | boolean | ❌ No | Alignment test (left, center, right) (default: true) | | include_columns | boolean | ❌ No | Column tables test (default: true) | | include_separators | boolean | ❌ No | Separator lines test (default: true) | | include_barcode | boolean | ❌ No | Barcode test (default: true) | | include_barcode_types | boolean | ❌ No | Multiple barcode types test (default: false) | | include_qr | boolean | ❌ No | QR code test (default: true) | | include_image | boolean | ❌ No | Image printing test (default: false) | | image_base64 | string | ❌ No | Base64 image for testing (only if include_image is true) | | include_beep | boolean | ❌ No | Acoustic signal test (default: true) | | test_cash_drawer | boolean | ❌ No | Cash drawer opening test (default: false) | | cut_paper | boolean | ❌ No | Cut paper at the end (default: true) | | test_feed | boolean | ❌ No | Paper feed test (default: true) | | test_all_fonts | boolean | ❌ No | Test all available fonts (default: false) | | test_invert | boolean | ❌ No | Inverted text test (default: false) | | test_rotate | boolean | ❌ No | Text rotation test (default: false) |

Response:

Returns boolean:

• true: Test completed successfully
• false: Test failed

Print Document

Print a personalized document with the specified sections.

Request:

import { print_thermal_printer, type PrintJobRequest } from "tauri-plugin-thermal-printer";

const response = await print_thermal_printer({
  "printer": "TM-T20II",
  "paper_size": "Mm80",
  "options": {
    "cut_paper": true,
    "beep": false,
    "open_cash_drawer": false
  },
  "sections": [
    {"Title": {"text": "My Business"}},
    {"Subtitle": {"text": "Date: 01/01/2000"}},
    {"Text": {"text": "Normal text", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Feed": {"feed_type": "lines", "value": 3}},
    {"Cut": {"mode": "full", "feed": 3}},
    {"Beep": {"times": 1, "duration": 100}},
    {"Drawer": {"pin": 2, "pulse_time": 100}},
    {"Qr": {"data": "https://example.com", "size": 5, "error_correction": "M", "model": 2}},
    {"Barcode": {"data": "123456789", "barcode_type": "CODE128", "width": 2, "height": 100, "text_position": "below"}},
    {"Table": {"columns": 3, "column_widths": [10, 15, 10], "header": [{"text": "Col1"}, {"text": "Col2"}, {"text": "Col3"}], "body": [[{"text": "Data1"}, {"text": "Data2"}, {"text": "Data3"}]], "truncate": false}},
    {"DataMatrix": {"data": "DataMatrix data", "size": 5}},
    {"Pdf417": {"data": "PDF417 data", "columns": 2, "rows": 5, "width": 3, "height": 5, "error_correction": 2}},
    {"Image": {"data": "{please introduce a base64 data image}", "max_width": 384, "align": "center", "dithering": true, "size": "normal"}},
    {"Logo": {"key_code": 1, "mode": "normal"}},
    {"Line": {"character": "="}}
  ]
} as PrintJobRequest)

Response:

Returns boolean:

• true: Print completed successfully
• false: Print failed

Main parameters (PrintJobRequest):

| Parameter | Type | Required | Description | |-----------|------|----------|-------------| | printer | string | ✅ Yes | Printer name | | paper_size | string | ❌ No | Paper size: "Mm58" or "Mm80" (default: "Mm80") | | options | PrinterOptions | ❌ No | Configuration options | | options.cut_paper | boolean | ❌ No | Cut paper after printing (default: true) | | options.beep | boolean | ❌ No | Beep after printing (default: false) | | options.open_cash_drawer | boolean | ❌ No | Open cash drawer after printing (default: false) | | sections | array | ✅ Yes | Array of sections to print (see Section Types) |

Section Types

Sections are defined as objects in the sections array. Each section is an enum variant with its data. Below are all supported section types:

Title

Prints a title with forced double size and center alignment.

{
  "Title": {
    "text": "My Title",
    "styles": {
      "bold": false,
      "underline": false,
      "align": "center",
      "italic": false,
      "invert": false,
      "font": "A",
      "rotate": false,
      "upside_down": false,
      "size": "Double"
    }
  }
}

Or simply:

{
  "Title": {
    "text": "My Title"
  }
}

• text (string, required): Title text
• styles (GlobalStyles, optional): Applied styles

Subtitle

Prints a subtitle with forced bold and increased height.

{
  "Subtitle": {
    "text": "My Subtitle",
    "styles": {
      "bold": true,
      "underline": false,
      "align": "left",
      "italic": false,
      "invert": false,
      "font": "A",
      "rotate": false,
      "upside_down": false,
      "size": "height"
    }
  }
}

Or simply:

{
  "Subtitle": {
    "text": "My Subtitle"
  }
}

• text (string, required): Subtitle text
• styles (GlobalStyles, optional): Applied styles

Text

Prints simple text with optional styles.

{
  "Text": {
    "text": "Normal text",
    "styles": {
      "bold": false,
      "underline": false,
      "align": "left",
      "italic": false,
      "invert": false,
      "font": "A",
      "rotate": false,
      "upside_down": false,
      "size": "normal"
    }
  }
}

Or

{
  "Text": {
    "text": "My Subtitle",
    "styles": {
      "bold": true,
      "underline": true
    }
  }
}

Or simple version

{
  "Text": {
    "text": "My Subtitle"
  }
}

You can pick the style that you need, it's not necessary to declared all of them.

• text (string, required): Text to print
• styles (GlobalStyles, optional): Applied styles (defaults to current global styles)

Feed

Advances the paper by a specific number of lines.

{
  "Feed": {
    "feed_type": "lines",
    "value": 3
  }
}

• feed_type (string, required): Feed type ("lines")
• value (number, required): Number of lines to advance

Cut

Cuts the paper.

{
  "Cut": {
    "mode": "full",
    "feed": 3
  }
}

• mode (string, required): Cut mode ("full", "partial")
• feed (number, required): Lines to advance before cutting

Beep

Emits a beep.

{
  "Beep": {
    "times": 1,
    "duration": 100
  }
}

• times (number, required): Number of beeps
• duration (number, required): Duration in milliseconds

Drawer

Opens the cash drawer.

{
  "Drawer": {
    "pin": 2,
    "pulse_time": 100
  }
}

• pin (number, required): Drawer pin (2 or 5)
• pulse_time (number, required): Pulse time in milliseconds

Qr

Prints a QR code.

{
  "Qr": {
    "data": "https://example.com",
    "size": 5,
    "error_correction": "M",
    "model": 2,
    "align": "center"
  }
}

• data (string, required): QR data
• size (number, required): Module size (1-16)
• error_correction (string, required): Error correction level ("L", "M", "Q", "H")
• model (number, required): QR model (1 or 2)
• align (string, optional): Alignment ("left", "center", "right")

Barcode

Prints a barcode.

{
  "Barcode": {
    "data": "123456789",
    "barcode_type": "CODE128",
    "width": 2,
    "height": 100,
    "text_position": "below",
    "align": "center"
  }
}

• data (string, required): Barcode data
• barcode_type (string, required): Type ("UPC-A", "UPC-E", "EAN13", "EAN8", "CODE39", "ITF", "CODABAR", "CODE93", "CODE128")
• width (number, required): Module width
• height (number, required): Height in dots
• text_position (string, required): Text position ("not_printed", "above", "below", "both")
• align (string, optional): Horizontal alignment ("left", "center", "right") (default: current global alignment)

Table

Prints a table.

{
  "Table": {
    "columns": 3,
    "column_widths": [10, 15, 10],
    "header": [
      {"text": "Col1"},
      {"text": "Col2"},
      {"text": "Col3"}
    ],
    "body": [
      [
        {"text": "Data1"},
        {"text": "Data2"},
        {"text": "Data3"}
      ]
    ],
    "truncate": false
  }
}

Or simply:

{
  "Table": {
    "columns": 3,
    "body": [
      [
        {"text": "Data1"},
        {"text": "Data2"},
        {"text": "Data3"}
      ]
    ]
  }
}

• columns (number, required): Number of columns
• column_widths (array, optional): Widths of each column. If not provided, columns will be evenly distributed across the paper width
• header (array, optional): Column headers (array of Text objects)
• body (array, required): Data rows (array of arrays of Text objects)
• truncate (boolean, optional): Truncate long text (default: false)

DataMatrix

Prints a DataMatrix code.

{
  "DataMatrix": {
    "data": "DataMatrix data",
    "size": 5
  }
}

• data (string, required): DataMatrix data
• size (number, required): Module size (1-16)

Pdf417

Prints a PDF417 code.

{
  "Pdf417": {
    "data": "PDF417 data",
    "columns": 2,
    "rows": 5,
    "width": 3,
    "height": 5,
    "error_correction": 2
  }
}

• data (string, required): PDF417 data
• columns (number, required): Number of data columns
• rows (number, required): Number of data rows
• width (number, required): Module width
• height (number, required): Module height
• error_correction (number, required): Error correction level (0-8)

Image

Prints an image.

{
  "Image": {
    "data": "base64_encoded_image",
    "max_width": 384,
    "align": "center",
    "dithering": true,
    "size": "normal"
  }
}

• data (string, required): Base64 encoded image
• max_width (number, required): Maximum width in pixels
• align (string, required): Alignment ("left", "center", "right")
• dithering (boolean, required): Apply dithering
• size (string, required): Size ("normal", "double_width", "double_height", "quadruple")

Logo

Prints a logo stored in the printer.

{
  "Logo": {
    "key_code": 1,
    "mode": "normal"
  }
}

• key_code (number, required): Logo key code (1-255)
• mode (string, required): Print mode ("normal", "double_width", "double_height", "quadruple")

Line

Prints a separator line.

{
  "Line": {
    "character": "="
  }
}

• character (string, required): Character for the line (e.g., "=", "-", "_")

GlobalStyles

Changes the current global styles that will be applied to subsequent text sections. This allows you to set default styles without specifying them for each text element.

{
  "GlobalStyles": {
    "bold": false,
    "underline": false,
    "align": "left",
    "italic": false,
    "invert": false,
    "font": "A",
    "rotate": false,
    "upside_down": false,
    "size": "normal"
  }
}

• bold (boolean, optional): Bold text (default: false)
• underline (boolean, optional): Underlined text (default: false)
• align (string, optional): Alignment ("left", "center", "right") (default: "left")
• italic (boolean, optional): Italic text (default: false)
• invert (boolean, optional): Inverted text (black background) (default: false)
• font (string, optional): Font ("A", "B", "C") (default: "A")
• rotate (boolean, optional): Text rotated 90 degrees (default: false)
• upside_down (boolean, optional): Upside down text (default: false)
• size (string, optional): Size ("normal", "height", "width", "double") (default: "normal")

Examples

This section contains practical examples for different use cases. Each example demonstrates how to structure print jobs for various business scenarios.

NOTE: Paper is automatically cut at the end of printing with a full cut. You don't need to add a Cut section manually unless you want a specific partial cut.

🛒 Long Receipt (Supermarket - 80mm)

import { print_thermal_printer, type PrintJobRequest } from "tauri-plugin-thermal-printer";

const receipt: PrintJobRequest = {
  "printer": "TM-T20II",
  "paper_size": "Mm80",
  "options": {
    "cut_paper": true,
    "beep": false,
    "open_cash_drawer": false
  },
  "sections": [
    {"Title": {"text": "SUPERMERCADO LA ECONOMÍA", "styles": {"bold": true, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "Double"}}},
    {"Text": {"text": "Sucursal Centro", "styles": {"bold": false, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Av. Juárez #1234, Col. Centro", "styles": {"bold": false, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Tel: (555) 123-4567", "styles": {"bold": false, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "RFC: SUPE850101ABC", "styles": {"bold": false, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Line": {"character": "="}},
    {"Text": {"text": "TICKET DE COMPRA", "styles": {"bold": true, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Fecha: 14/10/2025 15:45:30", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Ticket: #0012345", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Cajero: María González", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Caja: 03", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Line": {"character": "="}},
    {"Table": {
      "columns": 4,
      "column_widths": [5, 20, 11, 12],
      "header": [
        {"text": "CANT", "styles": {"bold": true, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}},
        {"text": "DESCRIPCIÓN", "styles": {"bold": true, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}},
        {"text": "P.U.", "styles": {"bold": true, "underline": false, "align": "right", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}},
        {"text": "TOTAL", "styles": {"bold": true, "underline": false, "align": "right", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}
      ],
      "body": [
        [
          {"text": "2", "styles": null},
          {"text": "Leche Lala 1L", "styles": null},
          {"text": "$22.50", "styles": {"bold": false, "underline": false, "align": "right", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}},
          {"text": "$45.00", "styles": {"bold": false, "underline": false, "align": "right", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}
        ],
        [
          {"text": "1", "styles": null},
          {"text": "Pan Bimbo Blanco", "styles": null},
          {"text": "$38.00", "styles": {"bold": false, "underline": false, "align": "right", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}},
          {"text": "$38.00", "styles": {"bold": false, "underline": false, "align": "right", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}
        ],
        [
          {"text": "3", "styles": null},
          {"text": "Coca Cola 600ml", "styles": null},
          {"text": "$16.00", "styles": {"bold": false, "underline": false, "align": "right", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}},
          {"text": "$48.00", "styles": {"bold": false, "underline": false, "align": "right", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}
        ],
        [
          {"text": "1", "styles": null},
          {"text": "Cereal Zucaritas", "styles": null},
          {"text": "$75.00", "styles": {"bold": false, "underline": false, "align": "right", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}},
          {"text": "$75.00", "styles": {"bold": false, "underline": false, "align": "right", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}
        ],
        [
          {"text": "1", "styles": null},
          {"text": "Azúcar 1kg", "styles": null},
          {"text": "$25.00", "styles": {"bold": false, "underline": false, "align": "right", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}},
          {"text": "$25.00", "styles": {"bold": false, "underline": false, "align": "right", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}
        ]
      ],
      "truncate": false
    }},
    {"Line": {"character": "="}},
    {"Table": {
      "columns": 2,
      "column_widths": [32, 16],
      "header": [],
      "body": [
        [
          {"text": "SUBTOTAL:", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}},
          {"text": "$1,280.00", "styles": {"bold": false, "underline": false, "align": "right", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}
        ],
        [
          {"text": "IVA (16%):", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}},
          {"text": "$204.80", "styles": {"bold": false, "underline": false, "align": "right", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}
        ]
      ],
      "truncate": false
    }},
    {"Line": {"character": "="}},
    {"Text": {"text": "TOTAL: $1,484.80", "styles": {"bold": true, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Line": {"character": "="}},
    {"Text": {"text": "Forma de Pago: EFECTIVO", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Table": {
      "columns": 2,
      "column_widths": [32, 16],
      "header": [],
      "body": [
        [
          {"text": "Pago con:", "styles": null},
          {"text": "$1,500.00", "styles": {"bold": false, "underline": false, "align": "right", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}
        ],
        [
          {"text": "Cambio:", "styles": null},
          {"text": "$15.20", "styles": {"bold": false, "underline": false, "align": "right", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}
        ]
      ],
      "truncate": false
    }},
    {"Line": {"character": "-"}},
    {"Text": {"text": "Artículos: 25", "styles": {"bold": false, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Ahorro total: $85.50", "styles": {"bold": false, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Line": {"character": "-"}},
    {"Text": {"text": "¡GRACIAS POR SU COMPRA!", "styles": {"bold": true, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Vuelva pronto", "styles": {"bold": false, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "www.supereconomia.com", "styles": {"bold": false, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Qr": {"data": "https://supereconomia.com/ticket/0012345", "size": 5, "error_correction": "M", "model": 2}},
    {"Barcode": {"data": "0012345", "barcode_type": "CODE128", "width": 2, "height": 50, "text_position": "below"}},
    {"Feed": {"feed_type": "lines", "value": 3}}
  ]
};

await print_thermal_printer(receipt);

🍕 Restaurant Ticket (80mm)

const restaurantTicket: PrintJobRequest = {
  "printer": "TM-T20II",
  "paper_size": "Mm80",
  "options": {
    "cut_paper": true,
    "beep": false,
    "open_cash_drawer": false
  },
  "sections": [
    {"Title": {"text": "RESTAURANTE EL BUEN SABOR", "styles": {"bold": true, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "Double"}}},
    {"Text": {"text": "Comida Mexicana", "styles": {"bold": false, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Tel: (555) 987-6543", "styles": {"bold": false, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Line": {"character": "="}},
    {"Text": {"text": "ORDEN #145", "styles": {"bold": true, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Mesa: 12", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Mesero: Carlos Ruiz", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Fecha: 14/10/2025 14:30", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Line": {"character": "="}},
    {"Table": {
      "columns": 3,
      "column_widths": [5, 28, 15],
      "header": [
        {"text": "CANT", "styles": {"bold": true, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}},
        {"text": "PLATILLO", "styles": {"bold": true, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}},
        {"text": "PRECIO", "styles": {"bold": true, "underline": false, "align": "right", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}
      ],
      "body": [
        [
          {"text": "2", "styles": null},
          {"text": "Tacos al Pastor", "styles": null},
          {"text": "$45.00", "styles": {"bold": false, "underline": false, "align": "right", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}
        ],
        [
          {"text": "1", "styles": null},
          {"text": "Enchiladas Verdes", "styles": null},
          {"text": "$85.00", "styles": {"bold": false, "underline": false, "align": "right", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}
        ],
        [
          {"text": "1", "styles": null},
          {"text": "Pozole Grande", "styles": null},
          {"text": "$95.00", "styles": {"bold": false, "underline": false, "align": "right", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}
        ],
        [
          {"text": "3", "styles": null},
          {"text": "Refresco 600ml", "styles": null},
          {"text": "$36.00", "styles": {"bold": false, "underline": false, "align": "right", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}
        ],
        [
          {"text": "1", "styles": null},
          {"text": "Agua de Horchata", "styles": null},
          {"text": "$25.00", "styles": {"bold": false, "underline": false, "align": "right", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}
        ]
      ],
      "truncate": false
    }},
    {"Line": {"character": "="}},
    {"Table": {
      "columns": 2,
      "column_widths": [32, 16],
      "header": [],
      "body": [
        [
          {"text": "SUBTOTAL:", "styles": null},
          {"text": "$286.00", "styles": {"bold": false, "underline": false, "align": "right", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}
        ],
        [
          {"text": "Propina Sugerida (10%):", "styles": null},
          {"text": "$28.60", "styles": {"bold": false, "underline": false, "align": "right", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}
        ]
      ],
      "truncate": false
    }},
    {"Line": {"character": "="}},
    {"Text": {"text": "TOTAL: $314.60", "styles": {"bold": true, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Line": {"character": "="}},
    {"Text": {"text": "¡Gracias por su visita!", "styles": {"bold": false, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Esperamos verlo pronto", "styles": {"bold": false, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Feed": {"feed_type": "lines", "value": 3}}
  ]
};

👨‍🍳 Kitchen Order (80mm)

const kitchenOrder: PrintJobRequest = {
  "printer": "TM-T20II",
  "paper_size": "Mm80",
  "options": {
    "cut_paper": true,
    "beep": true,
    "open_cash_drawer": false
  },
  "sections": [
    {"Title": {"text": "*** COMANDA COCINA ***", "styles": {"bold": true, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "Double"}}},
    {"Text": {"text": "Orden: #145", "styles": {"bold": true, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Mesa: 12", "styles": {"bold": true, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Hora: 14:30", "styles": {"bold": true, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Line": {"character": "="}},
    {"Text": {"text": "2x TACOS AL PASTOR", "styles": {"bold": true, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "   - Sin cebolla", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "   - Extra cilantro", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Line": {"character": "-"}},
    {"Text": {"text": "1x ENCHILADAS VERDES", "styles": {"bold": true, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "   - Término medio", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Line": {"character": "-"}},
    {"Text": {"text": "1x POZOLE GRANDE", "styles": {"bold": true, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "   - Extra rábanos", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "   - Sin orégano", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Line": {"character": "="}},
    {"Text": {"text": "Mesero: Carlos", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Notas: Cliente regular", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Feed": {"feed_type": "lines", "value": 3}},
    {"Beep": {"times": 2, "duration": 100}}
  ]
};

🏷️ Product Label (58mm)

const productLabel: PrintJobRequest = {
  "printer": "TM-T20II",
  "paper_size": "Mm58",
  "options": {
    "cut_paper": true,
    "beep": false,
    "open_cash_drawer": false
  },
  "sections": [
    {"Title": {"text": "PRODUCTO", "styles": {"bold": true, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "Double"}}},
    {"Line": {"character": "-"}},
    {"Text": {"text": "Nombre: Laptop HP", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Modelo: 15-dy2021la", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "UPC: 7501234567890", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Line": {"character": "-"}},
    {"Text": {"text": "PRECIO: $12,999.00", "styles": {"bold": true, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Line": {"character": "-"}},
    {"Barcode": {"data": "7501234567890", "barcode_type": "EAN13", "width": 2, "height": 50, "text_position": "below"}},
    {"Feed": {"feed_type": "lines", "value": 2}}
  ]
};

🎟️ Service Turn Ticket (58mm)

const turnTicket: PrintJobRequest = {
  "printer": "TM-T20II",
  "paper_size": "Mm58",
  "options": {
    "cut_paper": true,
    "beep": true,
    "open_cash_drawer": false
  },
  "sections": [
    {"Title": {"text": "TICKET DE TURNO", "styles": {"bold": true, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "Double"}}},
    {"Line": {"character": "="}},
    {"Text": {"text": "A-123", "styles": {"bold": true, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "Double"}}},
    {"Line": {"character": "="}},
    {"Text": {"text": "Servicio: Cajas", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Fecha: 14/10/2025", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Hora: 15:45", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Line": {"character": "-"}},
    {"Text": {"text": "En espera: 8 turnos", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Tiempo aprox: 20 min", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Line": {"character": "-"}},
    {"Qr": {"data": "A-123", "size": 4, "error_correction": "L", "model": 2}},
    {"Text": {"text": "Escanea para consultar", "styles": {"bold": false, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Feed": {"feed_type": "lines", "value": 2}},
    {"Beep": {"times": 1, "duration": 100}}
  ]
};

🚗 Parking Ticket (80mm)

const parkingTicket: PrintJobRequest = {
  "printer": "TM-T20II",
  "paper_size": "Mm80",
  "options": {
    "cut_paper": true,
    "beep": false,
    "open_cash_drawer": false
  },
  "sections": [
    {"Title": {"text": "ESTACIONAMIENTO", "styles": {"bold": true, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "Double"}}},
    {"Subtitle": {"text": "PLAZA COMERCIAL", "styles": {"bold": true, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Line": {"character": "="}},
    {"Text": {"text": "Ticket: E-5678", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Entrada: 14/10/2025 10:15", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Caseta: A-01", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Line": {"character": "-"}},
    {"Text": {"text": "Vehículo: ABC-1234", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Nivel: 2 - Zona B", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Line": {"character": "="}},
    {"Text": {"text": "TARIFAS:", "styles": {"bold": true, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Primera hora: $20.00", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Hora adicional: $15.00", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Máximo 24hrs: $180.00", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Line": {"character": "-"}},
    {"Text": {"text": "CONSERVE SU TICKET", "styles": {"bold": true, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Para salida y pago", "styles": {"bold": false, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Barcode": {"data": "E5678", "barcode_type": "CODE128", "width": 2, "height": 60, "text_position": "below"}},
    {"Feed": {"feed_type": "lines", "value": 3}}
  ]
};

🎫 Event Ticket (80mm)

const eventTicket: PrintJobRequest = {
  "printer": "TM-T20II",
  "paper_size": "Mm80",
  "options": {
    "cut_paper": true,
    "beep": false,
    "open_cash_drawer": false
  },
  "sections": [
    {"Title": {"text": "CONCIERTO 2025", "styles": {"bold": true, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "Double"}}},
    {"Subtitle": {"text": "BANDA ROCK NACIONAL", "styles": {"bold": true, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Line": {"character": "="}},
    {"Text": {"text": "Boleto: #A-1234567", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Fecha: 25/10/2025", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Hora: 20:00 hrs", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Lugar: Auditorio Nacional", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Line": {"character": "-"}},
    {"Table": {
      "columns": 2,
      "column_widths": [24, 24],
      "header": [],
      "body": [
        [
          {"text": "Zona:", "styles": null},
          {"text": "Preferente A", "styles": null}
        ],
        [
          {"text": "Fila:", "styles": null},
          {"text": "12", "styles": null}
        ],
        [
          {"text": "Asiento:", "styles": null},
          {"text": "45", "styles": null}
        ]
      ],
      "truncate": false
    }},
    {"Line": {"character": "="}},
    {"Text": {"text": "PRECIO: $850.00", "styles": {"bold": true, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Line": {"character": "="}},
    {"Text": {"text": "Titular: Juan Pérez", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "ID: 1234567890", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Line": {"character": "-"}},
    {"Text": {"text": "IMPORTANTE:", "styles": {"bold": true, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "- Presentar identificación", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "- Llegar 30 min antes", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "- No se permiten reembolsos", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Qr": {"data": "TICKET-A1234567-CONCIERTO2025", "size": 6, "error_correction": "H", "model": 2}},
    {"Barcode": {"data": "A1234567", "barcode_type": "CODE128", "width": 2, "height": 60, "text_position": "below"}},
    {"Feed": {"feed_type": "lines", "value": 3}}
  ]
};

💳 Payment Receipt (80mm)

const paymentReceipt: PrintJobRequest = {
  "printer": "TM-T20II",
  "paper_size": "Mm80",
  "options": {
    "cut_paper": true,
    "beep": false,
    "open_cash_drawer": false
  },
  "sections": [
    {"Title": {"text": "COMPROBANTE DE PAGO", "styles": {"bold": true, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "Double"}}},
    {"Line": {"character": "="}},
    {"Text": {"text": "Banco Nacional", "styles": {"bold": false, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Sucursal Centro", "styles": {"bold": false, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Operación: 987654321", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Fecha: 14/10/2025 16:23:45", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Line": {"character": "="}},
    {"Text": {"text": "TRANSFERENCIA ELECTRÓNICA", "styles": {"bold": true, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Line": {"character": "-"}},
    {"Text": {"text": "De:", "styles": {"bold": true, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "  Cuenta: ****5678", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "  Nombre: Juan Pérez", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Line": {"character": "-"}},
    {"Text": {"text": "Para:", "styles": {"bold": true, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "  Cuenta: ****9012", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "  Nombre: María López", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Line": {"character": "="}},
    {"Text": {"text": "MONTO: $5,000.00 MXN", "styles": {"bold": true, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Line": {"character": "="}},
    {"Text": {"text": "Concepto:", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Pago de renta mensual", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Line": {"character": "-"}},
    {"Text": {"text": "Comisión: $0.00", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "IVA: $0.00", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Line": {"character": "="}},
    {"Text": {"text": "TOTAL: $5,000.00", "styles": {"bold": true, "underline": false, "align": "center", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Line": {"character": "="}},
    {"Text": {"text": "Estado: EXITOSA", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Referencia: 123456789012345", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Text": {"text": "Folio fiscal: ABCD-1234-EFGH", "styles": {"bold": false, "underline": false, "align": "left", "italic": false, "invert": false, "font": "A", "rotate": false, "upside_down": false, "size": "normal"}}},
    {"Feed": {"feed_type": "lines", "value": 3}}
  ]
};

📋 Summary

Tables

• Columns: Supports 2, 3, or 4 columns
• Column widths are optional - distributed automatically if not specified
• Important: Sum of widths should not exceed 48 characters (80mm) or 32 characters (58mm)

QR Codes

• Size: 1-10 (recommended: 5-6)
• Error correction: "L" (7%), "M" (15%), "Q" (25%), "H" (30%)
• Model: 1 or 2 (recommended: 2)

Barcodes

• Types: UPC-A, UPC-E, EAN13, EAN8, CODE39, ITF, CODABAR, CODE93, CODE128
• Height: 30-100 dots (recommended: 50-60)
• Text position: "not_printed", "above", "below", "both"

Styles

• Bold, underline, and invert styles are automatically reset after each section
• No need to manually reset styles

Paper Cutting

• Automatic: Paper is automatically cut at the end with a full cut
• Manual (optional): Add a Cut section if you need a specific partial cut