Specifications

TH230/TH230+ Programmers Guide

ESC 4

Function:

Read from User Data Storage

Code ASCII: ESC 4 m a0 a1 a2

Code HEX: 0x1B 0x34 m a0 a1 a2

Range:

0 ≤ m ≤ 255

Description: Reads m bytes of data from the user data storage flash page at the address

specified. Returns m bytes to the application, followed by a carriage return

(0x0D).

The high order byte of the address (a0) ranges from 0 to n2–1, with n2

specified in the flash allocation command. If the flash allocation command

has been used, the a0 = 0 always.

Notes:

• If the range of requested data exceeds the sector boundary, the printer

will only send the data up to the sector boundary.

ESC :

Function: Copy Character Set from ROM to RAM

Code ASCII:

ESC : 0 0 0

Code HEX:

0x1B 0x3A 0x30 0x30 0x30

Default: Current active ROM Code Page

Description:

Copies characters in the active ROM set to RAM. Use this command to

reinitialize the User-Defined Character Set. Code Page 437 is copied by

default at initialization.

Notes:

• This command is ignored if current font is the user font.

• To modify characters in one of the character set variations, such as

Rotated Print, select one of the Rotated Print commands, copy to RAM,

and then use the Define User-Defined Character Set command (0x1B

0x26).