Compuprint 10200 Programmer Manual - Manual (Page 66)

Commands
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If a data bit has a value of 1, then the corresponding wire is fired. If a data bit has a value of 0,
then the wire is not fired. In general the user of this feature must be careful that the number of
bytes of downloaded information is equal to 3 x width of the character being defined (a
1
) or the
results will be unpredictable. Only one print mode type may be downloade at a time. That is, if
draft characters have been downloaded, then selecting Letter Quality and downloading
characters will cause the draft download characters to be cleared. This applies similarly to script
characters.
ESC :
Copies characters from ROM to RAM. (EPSON)
ASCII Code ESC : NUL n 0
Hexadecimal Value 1B 3A 00 n 00
Decimal Value 27 58 n 0
This code copies the character generator in ROM into RAM area dedicated to the user-defined
characters. The n parameter represents the LQ typestyle. It copies the data for the characters
between 0 and 255 (from the italic character table) of the Courier or Gothic font from ROM to
RAM memory according to the following values:
n Selection n Selection
2 Courier 1 Gothic
4 Script 5 OCR-B
6 OCR-A
182 DLL
Before copying ROM characters to RAM, cancel italics with the ESC 5 command. After copying
you can italicize characters by sending the ESC 4 command.