Citizen Systems iDP-3550, iDP-3551 user manual Raphic Type

ESC "1"	(G raphic Type)
[Function]	Setting the 1/9-inch line feed width
[Code]	<1B>H <31>H
[Outline]	This command sets the line feed width to 1/9 inch.
ESC "2"	(Graphic Type)
[Function]	Setting the 2/9-inch line feed width
[Code]	<1B>H <32>H
[Outline]	This command sets the line feed width to 2/9 inch.