ESCPOS
ESC/POS Printer driver for Node.js
This is a fork of song940/node-escpos. It is partially rewritten to ES6 but currently it is not actively updated.
Installation
Using npm
npm install @pokusew/escpos --saveIf you use USBAdapter:
- On Linux, you'll need
libudevto build libusb. - On Ubuntu/Debian:
sudo apt-get install build-essential libudev-dev. - On Windows, Use Zadig to install the WinUSB driver for your USB device.
Otherwise you will get LIBUSB_ERROR_NOT_SUPPORTED when attempting to open devices.
Example
see example here
API
USBAdapter
open
Printer
text("text")
Prints raw text. Raises TextError exception.
control("align")
Carrier feed and tabs.
align is a string which takes any of the following values:
- LF for Line Feed
- FF for Form Feed
- CR for Carriage Return
- HT for Horizontal Tab
- VT for Vertical Tab
align("align")
Set text properties.
align set horizontal position for text, the possible values are:
- CENTER
- LEFT
- RIGHT
Default: left
font type could be A or B. Default: A width is a numeric value, 1 is for regular size, and 2 is twice the standard size. Default: 1 height is a numeric value, 1 is for regular size and 2 is twice the standard size. Default: 1
barcode("code", "barcode_type", width, height, "position", "font")
Prints a barcode.
code is an alphanumeric code to be printed as bar code barcode_type must be one of the following type of codes:
- UPC-A
- UPC-E
- EAN13
- EAN8
- CODE39
- ITF
- NW7
width is a numeric value in the range between (1,255) Default: 64 height is a numeric value in the range between (2,6) Default: 3 position is where to place the code around the bars, could be one of the following values:
- ABOVE
- BELOW
- BOTH
- OFF
Default: BELOW
font is one of the 2 type of fonts, values could be:
- A
- B
Default: A
Raises BarcodeTypeError, BarcodeSizeError, BarcodeCodeError exceptions.
cut("mode")
Cut paper.
mode set a full or partial cut. Default: full Partial cut is not implemented in all printers.
cashdraw(pin)
Sends a pulse to the cash drawer in the specified pin.
pin is a numeric value which defines the pin to be used to send the pulse, it could be 2 or 5. Raises `CashDrawerError()``
Thanks
- Part of code from @taoyuan