The BMP21 printer has 78 Datacomm, Electrical and General Identification symbols / images / pictograms.
The newer BMP21-Plus has 104 Arrows, Datacomm, Electrical, Greek, Home Electrical, Miscellaneous and Warning symbols.
The BMP21-Plus Lab has Arrows, Greek, Miscellaneous and Warning symbols.
Attached are spreadsheets that contain the symbols for the BMP21-Plus (AM_EU stands for Americas & European, to identify it separate from the Russian BMP21-Plus) and for the BMP21-Lab.
To insert a symbol, on the BMP21 printers, hold down the shift / function key (two orange triangle tops - the very bottom left key) and press the Symbol / 1 key. You will get a list of the symbols, you can actually see them. Arrow to image you want. and press enter.
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