escpos | simple Golang package for handling Epson ESC

by kenshaw Go Version: Current License: MIT

X-Ray Key Features Code Snippets Community Discussions(10)Vulnerabilities Install Support

kandi X-RAY | escpos Summary

escpos is a Go library typically used in Networking applications. escpos has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

This is a simple Golang package that provides ESC-POS library functions to help with sending control codes to a ESC-POS capable printer such as an Epson TM-T82 or similar. These printers are often used in retail environments in conjunction with a point-of-sale (POS) system.

Support

Quality

Security

License

Reuse

Support

escpos has a low active ecosystem.

It has 198 star(s) with 69 fork(s). There are 7 watchers for this library.

It had no major release in the last 6 months.

There are 7 open issues and 5 have been closed. On average issues are closed in 140 days. There are 2 open pull requests and 0 closed requests.

It has a neutral sentiment in the developer community.

The latest version of escpos is current.

Quality

escpos has 0 bugs and 0 code smells.

Security

escpos has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

escpos code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

escpos is licensed under the MIT License. This license is Permissive.

Permissive licenses have the least restrictions, and you can use them in most projects.

Reuse

escpos releases are not available. You will need to build from source code and install.

Installation instructions, examples and code snippets are available.

It has 636 lines of code, 51 functions and 5 files.

It has high code complexity. Code complexity directly impacts maintainability of the code.

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escpos Key Features

No Key Features are available at this moment for escpos.

escpos Examples and Code Snippets

No Code Snippets are available at this moment for escpos.

Community Discussions

Trending Discussions on escpos

EOS thermal printer does not print Arabic characters properly when using Flutter framework

Using insecure protocols with repositories build.gradle react native

Access printer connected at Virtual Printer Port (USB001) using python-escpos on Windows 10

cannot claim usb interface more than 64 times

thermal printer stalls when printing image

Why is Flask not printing german umlauts?

react-native-push-notification issue on building app

Difference print out between Thermal Printer and Dot-Matrix

Request Ajax in Live Server doesn't work for printing

Get printer product and device id

QUESTION

EOS thermal printer does not print Arabic characters properly when using Flutter framework

Asked 2022-Mar-23 at 00:02

Context:

I have an EOS thermal printer, but it does not print Arabic characters properly like in this image below:

As you can see, the Arabic text is printed incorrectly and from Left-to-Right (LTR), (it should be Right-to-Left - RTL).

Note: You can clearly see the English text is printed perfectly at the end of the page.

Question:

How can I print Arabic text the right way in flutter?

Additional Info:

Flutter version: 2.5.3 (Stable)

Package Used: escpos

Tested on multiple Android devices running Android version (8, 9 ,10)

...

ANSWER

Answered 2021-Nov-19 at 16:55

first I have used the esc_pos package and it didn't work. In the end, I've used the printing package to print an Arabic invoice and it works fine, and the explanation below

This is the full code to use the printing package. first, create a class to pass the parameters to it(the parameters that you need to print) in my case 4 required param.

Source https://stackoverflow.com/questions/70000930

QUESTION

Using insecure protocols with repositories build.gradle react native

Asked 2022-Feb-20 at 01:13

I'm trying to install this library https://github.com/januslo/react-native-bluetooth-escpos-printer after manually linking it to the project I got this error

A problem occurred configuring project ':react-native-bluetooth-escpos-printer'.

Could not resolve all dependencies for configuration ':react-native-bluetooth-escpos-printer:classpath'. Using insecure protocols with repositories, without explicit opt-in, is unsupported. Switch Maven repository 'BintrayJCenter(http://jcenter.bintray.com/)' to redirect to a secure protocol (like HTTPS) or allow insecure protocols. See https://docs.gradle.org/7.2/dsl/org.gradle.api.artifacts.repositories.UrlArtifactRepository.html#org.gradle.api.artifacts.repositories.UrlArtifactRepository:allowInsecureProtocol for more details.

The issue is probably here in this file build.gradle

...

ANSWER

Answered 2022-Feb-20 at 01:13

The real problem is this line:

Source https://stackoverflow.com/questions/71190330

QUESTION

Access printer connected at Virtual Printer Port (USB001) using python-escpos on Windows 10

Asked 2022-Jan-11 at 10:00

I have created a printing module, which work with printer connected at serial port using printer.Serial("COM5") interface provided by python-escpos.

But now, I have to switch to USB printer rather than serial. My USB printer is connected at virtual printer port (USB001). Now, printer.USB() requires vendorID and productID but in my case when I see Device Instance Path, it does't contain vendorID and productID (screenshot is attached below). I am stuck here that how can I connect with this USB printer.

Please note that my printer is R290 thermal printer and I have downloaded its driver from http://itambition.com/printer.html. The printer is connected at USB001 and test page is being printed successfully.

...

ANSWER

Answered 2022-Jan-11 at 10:00

I have resolved the issue using following steps:

connect USB printer
install R290 driver from http://itambition.com/printer.html. it will setup USB001 for usb printer
from printer & scanners menu, select printer properties and share the printer
open cmd as administrator and run:

net use lpt1 \your-systems-hostname\printer-sharename

now connect printer.File("LPT1") interface of python-escpos and start printing

Source https://stackoverflow.com/questions/70634526

QUESTION

cannot claim usb interface more than 64 times

Asked 2021-Dec-09 at 10:10

I have an app that needs to maintain a long (indefinite) connection to a usb device and print a potentially unlimited number of times to it. So, it needs to make a lot of claims on the same device interface.

Eventually my app breaks because on the 65th claim I get a LIBUSB_ERROR_ACCESS error thrown. Is it possible to fix this with node-usb? Possibly related to

environment and hardware

...

ANSWER

Answered 2021-Dec-09 at 10:10

I got around this by using a main thread to manage two child threads

Source https://stackoverflow.com/questions/70273144

QUESTION

thermal printer stalls when printing image

Asked 2021-Jul-06 at 09:32

I have two Bluetooth thermal printers as well as an integrated device.

One of the printers doesn't support QR codes via GS ( k .. 49, so I'm printing by loading a file.bmp into a Bitmap kotlin class and then sending as image via GS v 0.

The problem I'm facing is that when I print the QR image the other printer stalls mid-image.

I must restart the printer for it to work properly, otherwise it'll print garbage.

The source file has the following characteristics:

82x82 pixels
2.9x2.9 cm print size (needs to be 3 cm)
24 bits per pixel
2 colors

It's loaded into a kotlin Bitmap as such:

...

ANSWER

Answered 2021-Jun-30 at 16:42

Turns out the problem wasn't in the printer buffer, missing ESC/POS command or data size.

I must wait before closing the Bluetooth socket otherwise there may be unsent data.

So,

Source https://stackoverflow.com/questions/68196317

QUESTION

Why is Flask not printing german umlauts?

Asked 2021-May-20 at 13:15

I have a problem regarding the german umlauts when trying to print a shopping list from alexa with flask. The code I use is:

...

ANSWER

Answered 2021-May-20 at 13:15

Your content is bytes, not a string, and calling str() on it will convert it into a string, but stupidly based on the __repr__. Instead, call get_data differently:

Source https://stackoverflow.com/questions/67620946

QUESTION

react-native-push-notification issue on building app

Asked 2021-May-12 at 16:00

Can someone help me.I am now Currently working on an app and it works on my few hours but now i have an error message. i also tried updating the EXT{} on different version

...

ANSWER

Answered 2021-May-12 at 16:00

Seems this is an issue affecting a lot of developers recently. Me too faced the same issue. The following solutions worked for me.

Change react-native-push-notification version to ^7.3.0. This solved the build issue in one of my project.

Do the below mentioned changes.

In android/app/build.gradle, add the below code to dependencies:

implementation 'com.google.firebase:firebase-messaging:21.1.0'

In android/build.gradle, make the below changes:

Source https://stackoverflow.com/questions/67501191

QUESTION

Difference print out between Thermal Printer and Dot-Matrix

Asked 2020-Nov-30 at 09:20

can you help me for this problem..?

I use library mike42 for printing receipt.. the device I used :

Printing receipt with Thermal Printer Panda PRJ-080B
Printing receipt with Dot Matrix EPSON LQ-2190

in this case, alignment text is not same this is result of printing

...

ANSWER

Answered 2020-Nov-30 at 09:10

Okay, problem solved..

make specific pitch setting on your Dot-matrix..

Change PS Pitch to Specific Pitch (ex : 10 cpi, 12 cpi, etc)

Source https://stackoverflow.com/questions/65069619

QUESTION

Request Ajax in Live Server doesn't work for printing

Asked 2020-Nov-30 at 09:15

my cashier project build in laravel. i need print receipt from web browser via mobile bluetooth.

i use mike42/escpos and RawBT package.

my program is working fine when running in localhost. but, doesn't work in live server

this is my VIEW :

...

ANSWER

Answered 2020-Nov-18 at 13:26

I think this is a little bit of problem..

in mike42 you should activate the requirement php extension in your server. in my case, i forgot activating intl extension

Source https://stackoverflow.com/questions/64893813

QUESTION

Get printer product and device id

Asked 2020-Nov-17 at 04:45

I need help finding the device id and product id for my printer, these specifications are required in this printing library for printers with ESCPOS support found here.

Library

This is what I have when I follow instructions for getting product and vendor ids in the properties tab

Clarify

How do I find exact product and vendor ids
What are usb input and output endpoints and where can they be found?

...

ANSWER

Answered 2020-Nov-17 at 04:45

I have found a tool here that enables you to view the specs for all USB devices in the system

NirSoft USB viewer tool

Source https://stackoverflow.com/questions/64869027

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install escpos

Install the package via the following:.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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