I'm trying to print a qrCode in esc/pos (page mode) using javascript. The printer is Epson TM-T20X
When I put less than 125 characters in the QrCode it works perfectly but more than that makes the printer stuck and eventually (after trying to print a test page a few times) it prints a bunch of weird characters.
the test qrCode string is as follows: aaaaaaaaaabbbbbbbbbbaaaaaaaaaabbbbbbbbbbaaaaaaaaaabbbbbbbbbbaaaaaaaaaabbbbbbbbbbaaaaaaaaaabbbbbbbbbbaaaaaaaaaabbbbbbbbbbaaaaaaaaaa
code:
var pL = inAux%256
var pH = inAux/256
var size = 3;
impressao += Char(29)+Char(40)+Char(107)+Char(4)+Char(0)+Char(49)+Char(65)+Char(49)+Char(0); // Select the model (1)
impressao += Char(29)+Char(40)+Char(107)+Char(3)+Char(0)+Char(49)+Char(67)+Char(size); // Size Module
impressao += Char(29)+Char(40)+Char(107)+Char(3)+Char(0)+Char(49)+Char(69)+Char(48); // Correction Level (L)
impressao += Char(29)+Char(40)+Char(107)+Char(pL)+Char(pH)+Char(49)+Char(80)+Char(48); // Store the data in the symbol storage area
impressao += QRcode;
impressao += Char(29) + Char(40) + Char(107) + Char(3) + Char(0) + Char(49) + Char(81) + Char(48); // Print the symbol data in the symbol storage area
impressao += esc + Char(12); // print page mode (ESC FF)```
Via Active questions tagged javascript - Stack Overflow https://ift.tt/9oyPNCs
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