Printing Labels Directly to LAN Printers Using SBPL

Printing Labels Directly to LAN Printers Using SBPL

In the ever-evolving world of technology, the need for efficient and convenient printing solutions remains crucial. The SBPL (SATO Barcode Printer Language) module offers a powerful tool for remote printing directly to LAN printers. Developed by SATO Corp, this module enables users to print labels with precise cutting control, taking printing capabilities beyond what traditional Windows printers can offer.

At its core, the SBPL module provides the functionality to print labels using the SATO Barcode Printer Language. With the use of SBPL, users can achieve label cutting that cannot be controlled with a normal Windows printer. Moreover, the module allows the printing of TrueType fonts using Freetype. By calling the ttf_write() method, users can easily print labels with custom TrueType fonts.

Additionally, the SBPL module supports monochrome or grayscale bitmap printing, also known as the “Black/White mode.” This feature enables users to print labels with varying shades of black and white, adding depth and clarity to their designs. It’s important to note that bitmap printing is not compatible with the CT series of printers.

To get started with the SBPL module, users can install it using the following command:
shell
$ pip install sbpl

Once installed, users can utilize the module by following a few simple steps. The usage example provided demonstrates the process of printing labels using the SBPL module. It involves establishing a connection to the printer, preparing the printing data, and sending it to the printer for printing. The LabelGenerator class provides convenient methods for generating label data, such as setting label size, rotating labels, positioning elements, and more. The generated label data can then be converted to bytes and sent to the printer using the comm.send() method.

The SBPL module also supports multiple page labels. Users can send label data for multiple pages between the comm.prepare() and comm.finish() calls. By caching label data for multiple pages, the com.send() method only needs to be called once at the end. However, users can choose to skip cutting between pages by calling the gen.skip_cutting() method.

Furthermore, the SBPL module allows users to describe label contents using the SBPL JSON format. This format enables users to specify all printing details in a structured manner, making it easier to manage and customize label data. The provided JSON example showcases various label elements, including label size, font type, text content, barcode data, and more. By parsing the JSON data with the JsonParser class and using the gen generator and comm communication objects, users can easily generate and print labels based on the JSON specifications.

In conclusion, the SBPL module presents a powerful solution for remote printing directly to LAN printers. By harnessing its capabilities, users can print labels with precise cutting control, utilize TrueType fonts, and incorporate monochrome bitmap printing. The module’s ease of installation and usage, support for multiple page labels, and compatibility with the SBPL JSON format make it a valuable tool for any printing needs.

For more information and detailed usage instructions, please refer to the official SBPL module documentation on the GitHub repository.

License: MIT
Author: KATO Kanryu(k.kanryu@gmail.com)