inventree-ptouch-endless-plugin

A label printing plugin for InvenTree, which provides additional support for Brother PTouch series printers.

Notable Features

• Dynamic length labels, depending on the size of the content
• Pixel perfect rendering using a custom base template
• Automatic label width setting
• True length, the labels length will be nearly the requested template width (about ±0.5mm which is a hardware limitation)

Template examples

Basic example

The generated pdf will cover the printable of the label exactly, one px in css is a actual pixel on the label, enabling consistant 1px features like a 1px border.
The Height [mm] from the template settings will determine the tape width (has to match what is in the machine) and the Width [mm] will determine its length. The printable area will be a bit smaller, as there the printers have a inherant margin on all sides.

{% extends "label/ptouch_base.html" %}

{% block style %}
.border {
  width: {{ width_px }}px;
  height: {{ height_px }}px;
  border: 1px solid black;
  box-sizing: border-box;
}
{% endblock style %}

{% block content %}
<div class="border">
  Hello World!
</div>
{% endblock content %}

Dynamic Width

By including {% shrink_if_possible %} in your {% block content %} the printer driver will cut of any whitespace to the right of the label, resulting in a label with a variable width depending on the content. The Width [mm] from the template settings is the max width in that scenario.

{% extends "label/ptouch_base.html" %}
{% load ptouch %}

{% block content %}
  {% shrink_if_possible %}
  Hello World!
{% endblock content %}

Supported printers

The plugin is based on labelprinterkit which supports the following printers:

• P700
• P750W
• H500
• E500
• E550W

The plugin has only been tested with a P750W. The build in margins have been measured from labels printed by the P750W, if they dont fit other printers, provide me with better values through a issue or PR. Other printers of the PTouch series might also work, but this is purly a suspicion.

Minimum Requirements

This plugin now requires the InvenTree version 1.1.0 or newer.
The plugin might function correctly on an InvenTree instance below version 1.1.0, but this has not been tested.

labelprinterkit

This plugin contains parts of https://github.com/ogelpre/labelprinterkit. Which could not be included via a dependency due to version conflicts.