Brother QL-720NW - Manual (Page 54)

ESC/P Command Reference
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5. Control Command Details
5.5 Vertical movement commands
LF Line feed
ASCII: LF
Decimal: 10
Hexadecimal: 0A
Parameters
None
Description
 Feeds the paper by the amount specified by a line feed command (ESC 0, ESC 2, ESC 3, ESC A).
 The print position becomes the beginning of the next line.
 The default value is a line feed of 48 dots.
 A carriage return immediately after a line feed is ignored.
 Auto-canceling double-width characters specified with SO or ESC SO are canceled.
 Same process as CR
FF Page feed
ASCII: FF
Decimal: 12
Hexadecimal: 0C
Parameters
None
Description
 Starts the printing.
 The previously entered data string of characters and commands is cleared after being printed.
 At this time, auto-canceling double-width characters specified with SO or ESC SO are canceled.