Chapter 5: Custom Character Commands 43Epson Custom Character Commands for 9-Pin PrintersCopy ROM to RAM Command for 9-Pin Printers (Epson) ML320 E/I, ML321 E/I ML320 Turbo, ML321 TurboFunction ASCII Dec HexCopy ROM Character Setto RAM Character SetESC : NUL NUL NUL 27 58 0 0 0 1B 3A 00 00 00This command is used with the ML320 E/I, ML321 E/I, ML320T, or ML321T printer to copy acomplete set of the characters resident in the printer to the area of its memory reserved forcustom characters. The new character will become part of this character set. ML520, ML521Function ASCII Dec HexCopy ROM Character Setto RAM Character SetESC : NUL n NUL 27 58 0 n 0 1B 3A 0 n 0This command is used with the ML520 or ML521 printer to copy a complete set of thecharacters resident in the printer to the area of its memory reserved for custom characters. Thenew character will become part of this character set. This makes it possible to mix standardcharacters with your custom characters when you print.Parameter n is used to specify the NLQ font to be used:n = 0: NLQ Couriern = 1: NLQ Sans SerifDown Line Load Characters Command for 9-Pin Printers (Epson) ML320 E/I, ML321 E/I ML320 Turbo, ML321 Turbo ML520, ML521Function ASCII Dec HexDown Line LoadCharactersESC & NUL n 1 n 2 a[data]27 38 0 n1 n 2 a[data]1B 26 00 n 1 n2 a[data]Use this command to begin downloading the character(s).Parameters n1 n2These parameters specify the range of characters to be replaced with new ones. Multiplecharacters must be assigned to adjacent locations. Parameter n 1 indicates the first character thatwill be replaced; parameter n 2 indicates the last character that will be replaced.Custom characters can normally be assigned to decimal locations 32 to 126 and 160 to 255. IfIBM Character Set II is selected (ESC 6 command), characters can also be assigned to locations128 to 159.Parameter aThis parameter indicates how the character will be positioned within its grid as follows:Ascenders: a is calculated aslast dot column of character + (first dot column x 16) + 128
