DATECS DPP-450 Programmer’s Manual
exactly the same as it was defined in command ESC o, but in reverse direction.
If paper has not been fed forward then this command is ignored.
68. Temporarily feeding paper forward (ESC o)
Code: [1Bh] + [6Fh] + n
n can be from 0 to 255.
This command temporarily feeds paper forward with the defined number of steps n
(1/8 mm). At command ESC i or at first command for printing the paper feeds
backwards.
69. Disabling/enabling PAIRING info saving in Bluetooth mode (ESC pair=)
Code: [1Bh] + [70h] + [61h] + [69h] + [72h] + [3Dh] + n
Possible values of n:
‘0’:Disables PAIRING info
saving. ‘1’:Enables
PAIRING info saving.
After PAIRING info saving no password is required when making new Bluetooth connection,
but only paired devices can communicate. If an old connection (pairing) was saved, it will be
destroyed and first new connection will be saved in it’s place.
After executing this command with argument ‘0’ the current saved information will be
destroyed, but no new connection will be saved. Every time a password will be required. The
printer will work with all
Bluetooth devices.
After the command the printer must be switched off (using ON/OFF button or ESC x
command).
70. Programming a new Bluetooth password (PIN) (ESC pwd=)
Code: [1Bh] + [70h] + [77h] + [64h] + [3Dh] + d + [00h]
This command changes the Bluetooth module PIN.
d contains the new PIN. PIN length is from 0 to 16 characters, allowed are digits and capital
latin letters. The string ends with 00h (ASCIIZ). If the length is 0, Bluetooth module uses no
password (PIN).
New password is active after switching the printer on next time in Bluetooth mode (without
serial or USB cable). The change is unconditionally and does not require the knowledge of the
old PIN.
Warning:
The command destroys saved PAIRING info (like after command ESC pair=0).
71. Full command for sounding buzzer (ESC r)
Code: [1Bh] + [72h] + Data
This command is used for making (beeping) a sequence of sounds with a certain frequency
and duration. The data is in format, similar to the one used for writing notes and can be of
any length. The first invalid character cancels the command.
Data format: Notes of the scale: a latin letter of value
from ‘A’ to‘G’. ‘C’ - Do
‘D’ - Re
‘E’ - Mi
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