Epson LQ-2550 User Manual - Page 233
Copy ROM into RAM, Select User-Defined Set, ESC 6, Enable Printable Characters, Command Summary
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ESC : Copy ROM into RAM Format: ASCII code: ESC : 0 n 0 Decimal: 27 58 0 n 0 Hexadecimal: 1B 3A 00 n 00 Comments: This code copies the characters in the ROM into RAM so that specific characters can be redefined. Orator and Orator-S are only available with the Multi-Font Module. The variable n represents the font family as follows. 0: Roman 5: OCR-B 1: Sans Serif 6: OCR-A 2: Courier 3: Prestige 4: Script ESC % Select User-Defined Set Format: ASCII code: ESC % n Decimal: 27 37 n Hexadecimal: 1B 25 n Comments: ESC & is required to first define the character set. The following values can be used for n: 0: Selects the normal set. 1: Selects the user-defined set. ESC 6 Enable Printable Characters Format: ASCII code: ESC 6 Decimal: 27 54 Hexadecimal: 1B 36 Comments: When the Epson Extended Graphics character table is selected, this code enables the printing of codes 128 through 159 (decimal) as characters, not control codes. Command Summary 8-33