If EZD is an acronym, spell it out: E____ Z____ D____
The term EZD, in the context of printing, refers to Zebra Designer, a label design software used for printing labels on Zebra printers and other devices that can interpret the ZPL (Zebra Programming Language). EZD is short for Zebra Designer, which is Zebra's label creation software.
ESC:
This is a standard printing language used by many printers, especially for labels and receipts.
In other words, EZD is not an acronym with a predefined meaning, but rather a common abbreviation for ZebraDesigner software. This software allows users to quickly and easily design labels for a variety of applications, such as barcode labels, ID tags, and other types of custom labels.
In short: EZD stands for ZebraDesigner and is the name of Zebra's label design software.
So when your printer displays 'EZD', it is expecting to receive ZPL codes, as documented in
?
Since ESC codes produced by the AI2 extensions start with ESC (decimal 27) characters, and ZPL codes start with tilde(~) or carat(^) symbols, that would explain why the AI2 extension outputs have no effect on that printer in that mode.
This indicates the logic of not receiving a response for printing. How do we solve it? Can we print text or images in this format (ZPL or CPCL) in Zebra format from App Inventor?
Why not experiment forjan, send the codes found in zpl-zbi2-pg-en.pdf
I recommend getting a Bluetooth terminal app to send your hand crafted printer code sequences.
Install the manufacturer driver programs also.
Printers have grown smarter lately.