Brother RJ-4030 - Manual (Page 31)

Raster Command Reference
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4. Printing Command Details
ESC i B Specify baud rate
ASCII: ESC i B {n1} {n2}
Hexadecimal: 1B 69 42 {n1} {n2}
Parameters
Setting=n1+n2*256
Setting: 96=9600 bps, 576=57600 bps, 1152=115200 bps
Description
 Changes the communications baud rate for the printer. The manufacturer ’s default setting is 9600 bps.
Z Zero raster graphics
ASCII: Z
Hexadecimal: 5A
Description
 Fills raster line with 0 data.
FF Print command
ASCII: FF
Hexadecimal: 0C
Description
 Used as a print command at the end of pages other than the last page when multiple pages are printed.
Control-Z Print command with feeding
ASCII: Control-Z
Hexadecimal: 1A
Description
 Used as a print command at the end of the last page.