User`s manual

MP-4000 TH POS Printer Rev.1.4 Programmer’s Manual

22-aug-2007

Firmware Release: 1.5

4. ESC/POS Commands

4.1 Operation Commands

The following section details each of the commands presented in the Command

Table, ESC/POS section.

GS F9h 5 01h

[Function] Select ESC/POS operation mode.

[Format] ASCII GS F9h 5 01h

Hexadecimal 1D F9 35 01

Decimal 29 249 53 1

[Description] Tells printer to interpret ESC/POS commands from now.

[Notes] ● This command saves data on printer flash memory and therefore is

slow, which may affect printer performance and funcionality if mixed

with other faster commands. Please, use with caution.

● When ESC/POS mode is enabled and a DB25 serial interface is

connected, the printer will automatically change its flow control to

DTR/DSR instead of RTS/CTS.

GS F9h 20h 31h

[Function] Select ESC/POS temporary operation mode.

[Format] ASCII GS F9h 20h 31h

Hexadecimal 1D F9 20 31

Decimal 29 249 31 49

[Description] Tells printer to interpret ESC/Bema commands from now.

[Notes] ● This command doesn’t writes anything on flash memory, so it can be

used anyway.

● When ESC/POS mode is enabled and a DB25 serial interface is

connected, the printer will automatically change its flow control to

DTR/DSR instead of RTS/CTS.