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escpos

How to define custom character with code > 126 using ESC/POS commands?

I'm trying to define custom characters on thermal printer NCR 7199. I used ESC/POS command

ESC & y c1 c2 x d1...dn

and it works fine. But this command can change only characters in range 32-126, and those characters are latin letters and common symbols.

I'd prefer to replace characters with codes 8E-8F, for example, but cannot do it using this command.

Is it possible? Or is there any other ESC/POS command for user-defined characters?

UPD. It seems like a firmware update can fix this problem. Firmware version on our printer is v99.21, and I saw this in release notes:

v99.25 "based on v99.24"
1. Allowed User-defined characters defined range from 20H to FFH in 7199 Emulation mode
Solution

  • Problem solved by updating firmware.

    After updating "Main Firmware" to v99.27 (it seems that version must be greater or equal v99.25) and changing Emulation mode to "NCR 7199" I was finally able to define characters in all range 20-FF.