Citizen Systems Compact desk-top dot matrix printer CBM-910 Type II - Manual (Page 47)

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(13) Registered Letter Valid/Invalid (ESC + “%” + n) Command
Whether a registered pattern is valid or invalid is set with ESC (1BH) + ”%”
(25H) + n code being input.
n = 1 (01H): Registered pattern to be made valid.
(Addresses for which no registration change has been conducted
are taken as inside fixed characters.)
n = 0 (00H): Registered pattern to be made invalid.
(Taken as inside fixed character sets.)
With 910 emulation 40-digit version, to use the registered characters, it is
necessary to set the registered characters to be valid using this command.
With 3110 emulation and 910 emulation 24-digit version, the registered
characters are valid at the registration of the user-defined characters without
setting the registered characters to be valid.
To reset to the state where inside fixed characters are usable while registered
characters are valid, it is necessary to disable the registered characters.
Command for setting to invalid operates regardless of the emulation or
number of digits.
O: Operation enabled by the Valid/Invalid command of registered characters.
×: As the registered characters are valid by the Register User-defined Character
command, it is not necessary to set the registered characters to be valid.
Registered Characters Enable/Disable Command Set to Valid Set to Invalid
910 Emulation (40 digits) O O
910 Emulation (24 digits) × O
3110 Emulation (40 digits) × O
3110 Emulation (24 digits) × O