Unicode characters on ZPL printer

Question

I have the task of re-designing a system to print shipping labels, using a networked Zebra GK420T. I have been able to send ZPL print jobs to it perfectly fine, but I cannot

Answer 1

When we use CP1251 as system encoding it causes empty symbols in labels, if we write Cyrillic in ZPL code. CP1251 users could first force convert "До свидания" to UTF-8 and get:

До свидания

Replace До свидания in ZPL code with these strange symbols and get "До свидания" on the label. It works with tt0003m_.fnt with ^CI28, but IMHO it is better to use hex-codes instead.