Compuprint L03 User Manual page 52

ALT Graphics:
If NO is selected, the 6-bit graphics horizontal densities are multiplies of 72.
If YES is selected, the 6-bit graphics horizontal densities are multiplies of 60.
8-bit Control:
If the printer receives a control code command (80H to 9FH) whose eighth data bit
is set, and the character set is selected, the printer will (YES) or will not (NO)
respond to the particular code based upon your selection.
ENQ Code Enable:
Selecting YES, enables the printer response to <ENQ>.
Selecting NO, the printer does not respond to <ENQ> code.
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User's Guide
EXPAND UP YES
ALT GRAPHICS YES
ALT GRAPHICS NO
8 BIT CTRL NO
ALT GRAPHICS NO
8 BIT CTRL YES
8 BIT CTRL NO
ENQ CODE NO
8 BIT CTRL NO
ENQ CODE YES
ENQ CODE NO
S/SUB SCRIPT NO
or
or
or
or
or
or