sunmi_printer_plus 2.0.6

Support V2 Pro Sunmi Label Version and Null safety.\nWith this package you can connect with Sunmi printers, print text, image, qrcode, barcodes and a custom Esc/Pos if you like.

sunmi_printer_plus

This is a fork from sunmi_printer , but i implemented a lot of other features described below

Support Sunmi V2 Pro Label Version and Null Safety. I build this flutter plugin based on this: Official Sunmi Inner Printer Doc. But not all method from doc is included in this plugins. I am only select few of important method which is important for my personal usecase only.

Installation

flutter pub add sunmi_printer_plus

What this package do

• ✅ Write some text
• ✅ Change font size
• ✅ Jump (n) lines
• ✅ Draw a divisor line
• ✅ Bold mode on/off
• ✅ Print all types of Barcodes (see enum below)
• ✅ Print Qrcodes with custom width and error-level
• ✅ Print image from asset or from web (example show how to print both)
• ✅ Print rows like recepit with custom width and alignment
• ✅ Able to combine with some esc/pos code that you already have!

Tested Devices

Sunmi V2 Pro 
Sunmi V2 Pro (Label Version)

You can also combine this package with the package esc_pos_utils

With this package you can create a custom escpos and than you don't need to use any other command. This is good if you already have a code that another printers use, and u can reuse this code as well

#Just see the example folder!

Example screen

// import packages
import 'package:sunmi_printer/sunmi_printer_plus.dart';


// all method from sunmi printer need to async await
await SunmiPrinter.bindingPrinter(); // must bind the printer first. for more exmaple.. pls refer to example tab.

Example code when use for transaction printing

  await SunmiPrinter.startTransactionPrint(true);

  await SunmiPrinter.setAlignment(SunmiPrintAlign.RIGHT); // Right align
  await SunmiPrinter.printText('Align right');

  await SunmiPrinter.setAlignment(SunmiPrintAlign.LEFT);// Left align
  await SunmiPrinter.printText('Align left');

  await SunmiPrinter.setAlignment(SunmiPrintAlign.CENTER);// Center align
  await SunmiPrinter.printText('Align center');

  await SunmiPrinter.lineWrap(2); // Jump 2 lines

  await SunmiPrinter.setFontSize(SunmiFontSize.XL); // Set font to very large
  await SunmiPrinter.printText('Very Large font!');
  await SunmiPrinter.resetFontSize(); // Reset font to medium size

  await SunmiPrinter.printQRCode('https://github.com/brasizza/sunmi_printer'); // PRINT A QRCODE
  await SunmiPrinter.submitTransactionPrint(); // SUBMIT and cut paper
  await SunmiPrinter.exitTransactionPrint(true); // Close the transaction

Example code when use for label printing

// Enter into the label mode
await SunmiPrinter.startLabelPrint();
// Set whatever alignment u like
await SunmiPrinter.setAlignment(SunmiPrintAlign.CENTER); 
await SunmiPrinter.printText("Label mode for some printers"); 
// remember to exit the label mode after finish printing.
await SunmiPrinter.exitLabelPrint(); 

List of enum printer status

enum PrinterStatus {
  ERROR,
  NORMAL, 
  ABNORMAL_COMMUNICATION, 
  OUT_OF_PAPER, 
  PREPARING,
  OVERHEATED,
  OPEN_THE_LID, 
  PAPER_CUTTER_ABNORMAL,
  PAPER_CUTTER_RECOVERED,
  NO_BLACK_MARK,
  NO_PRINTER_DETECTED,
  FAILED_TO_UPGRADE_FIRMWARE,
  EXCEPTION
}

List of printer verbose status

{
    'ERROR': 'Something went wrong.', 
    'NORMAL': 'Works normally', 
    'ABNORMAL_COMMUNICATION': 'Abnormal communication',
    'OUT_OF_PAPER': 'Out of paper',
    'PREPARING': 'Preparing printer',
    'OVERHEATED': 'Overheated',
    'OPEN_THE_LID': 'Open the lid',
    'PAPER_CUTTER_ABNORMAL': 'The paper cutter is abnormal',
    'PAPER_CUTTER_RECOVERED': 'The paper cutter has been recovered',
    'NO_BLACK_MARK': 'No black mark had been detected',
    'NO_PRINTER_DETECTED': 'No printer had been detected',
    'FAILED_TO_UPGRADE_FIRMWARE': 'Failed to upgrade firmware',
    'EXCEPTION': 'Unknown Error code',
}

List of enum printer mode

enum PrinterMode {
  NORMAL_MODE,
  BLACK_LABEL_MODE, 
  LABEL_MODE
}

List of enum Alignments

enum SunmiPrintAlign { LEFT, CENTER, RIGHT }

List of enum Qrcode levels

enum SunmiQrcodeLevel { LEVEL_L, LEVEL_M, LEVEL_Q, LEVEL_H }

List of enum Barcode types

enum SunmiBarcodeType { UPCA, UPCE, JAN13, JAN8, CODE39, ITF, CODABAR, CODE93, CODE128 }

List of enum Text position in barcode

enum SunmiBarcodeTextPos { NO_TEXT, TEXT_ABOVE, TEXT_UNDER, BOTH }

List of enum Font sizes

enum SunmiFontSize { XS, SM, MD, LG, XL }