Citizen iDP-3550 User Manual page 100

GS m
[Function] Printing the download bit image
[Code] <1D>H <2F>H m
[Range] 0 m
[Outline] This command prints the bit image saved in the number specified with m.
[Caution] If the print buffer contains the data, this command will be ignored. If the bit image has not
been saved in the specified number, this command will be ignored.
Nothing is printed when m is other than 0,1,2 or 3.
255
(Graphic Type)