ESCPOS-ThermalPrinter-Android | Useful library to help Android developpers | 3D Printing library
kandi X-RAY | ESCPOS-ThermalPrinter-Android Summary
kandi X-RAY | ESCPOS-ThermalPrinter-Android Summary
Useful library to help Android developpers to print with (Bluetooth, TCP, USB) ESC/POS thermal printer.
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Top functions reviewed by kandi - BETA
- This method implements the AsyncProcessor interface
- Print text
- Start the socket connection
- This method is used to execute the cursor
- Setup button
- InitializeGS0 command
- Browse Bluetooth device
- Convert bitmap to byte array
- Init constructor
- Convert a string to a QR Code
- Prints a QR Code
- Get regular alignment tags
- Convert hexadecimal string to bytes
- Disconnect from the USB device
- Start socket connection
- Generate a blank space string
- Find the endpoint in the specified USB interface
- Reset progress
- Check the validity of the code
- Callback method to dismiss the dialog
- On pre execute
- Returns the size of the text in bytes
- Check the code of the barcode
- Close the usb connection
ESCPOS-ThermalPrinter-Android Key Features
ESCPOS-ThermalPrinter-Android Examples and Code Snippets
Community Discussions
Trending Discussions on ESCPOS-ThermalPrinter-Android
QUESTION
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 16:42Turns 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,
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
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