Brother TD-2120N - Manual (Page 110)

ESC/P Command Reference
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5. Control Command Details
ESC iXX1 Retrieve default character size
ASCII: ESC i X X 1 n1 n2
Decimal: 27 105 88 88 49 n1 n2
Hexadecimal: 1B 69 58 58 31 n1 n2
Parameters
n1: 00h (Fixed)
n2: 00h (Fixed)
Description
 The default character size setting is returned as 4-byte data.
[1] 02h (Fixed)
[2] 00h (Fixed)
[3, 4] n3 n4 settings
n3+(n4*256): Default character size (dots)
 The retrieved value is a value specified by a static command.
ESC iX32 Specify default line feed
ASCII: ESC i X 3 2 n1 n2 n3 n4
Decimal: 27 105 88 51 50 n1 n2 n3 n4
Hexadecimal: 1B 69 58 33 32 n1 n2 n3 n4
Parameters
n1: 02h (Fixed)
n2: 00h (Fixed)
00h≤n3≤FFh, 00h≤n4≤02h
Description
 Specifies the default line feed.
n3+(n4*256): Default line feed (dots)
*The manufacturer’s default is 32.
 Specified length is from 0 to 2 inches.
 This command is a static command.
Remarks
 Invalid if the setting is a value outside of the allowable range