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further revise

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Patrick Kanzler
2023-08-10 01:32:23 +02:00
parent 58b50b1736
commit 9a7ac83f89
8 changed files with 76 additions and 35 deletions
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29
doc/user/barcode.rst
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@@ -1,19 +1,29 @@
Printing Barcodes
-----------------
:Last Reviewed: 2023-05-16
:Last Reviewed: 2023-08-10
Many printers implement barcode printing natively.
This hardware renderered barcodes are fast but the supported formats are limited by the printer itself and different between models.
However, almost all printers support printing images, so barcode renderization can be performed externally by software and then sent to the printer as an image.
As a drawback, this operation is much slower and the user needs to know and choose the image implementation method supported by the printer's commandset.
This hardware renderered barcodes are fast but the supported
formats are limited by the printer itself and different between models.
However, almost all printers support printing images, so barcode
rendering can be performed externally by software and then sent
to the printer as an image.
As a drawback, this operation is much slower and the user needs
to know and choose the image implementation method supported by
the printer's commandset.
barcode-method
~~~~~~~~~~~~~~
Since version 3.0, the ``barcode`` method unifies the previous ``barcode`` (hardware) and ``soft_barcode`` (software) methods.
It is able to choose automatically the best printer implementation for barcode printing based on the capabilities of the printer and the type of barcode desired.
To achieve this, it relies on the information contained in the escpos-printer-db profiles.
The chosen profile needs to match the capabilities of the printer as closely as possible.
Since version 3.0, the ``barcode`` method unifies the previous
``barcode`` (hardware) and ``soft_barcode`` (software) methods.
It is able to choose automatically the best printer implementation
for barcode printing based on the capabilities of the printer
and the type of barcode desired.
To achieve this, it relies on the information contained in the
escpos-printer-db profiles.
The chosen profile needs to match the capabilities of the printer
as closely as possible.
.. py:currentmodule:: escpos.escpos
@@ -33,4 +43,5 @@ For alphanumeric CODE128 you have to preface your payload with `{B`.
# print CODE128 012ABCDabcd
p.barcode("{B012ABCDabcd", "CODE128", function_type="B")
A very good description on CODE128 is also on `Wikipedia <https://en.wikipedia.org/wiki/Code_128>`_.
A very good description on CODE128 is also on
`Wikipedia <https://en.wikipedia.org/wiki/Code_128>`_.

2
doc/user/usage.rst
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@@ -1,7 +1,7 @@
Usage
=====
:Last Reviewed: 2017-06-10
:Last Reviewed: 2023-08-10
Define your printer
-------------------