iDP3550/3551 User’s Manual
102 CITIZEN
ESC "U" n[Function] Spec ifying/Canceling the Unidirect ional print mode
[Code] <1B>H <55>H n
[Range] 0≤n≤255
[Outline] This command selects/deselects unidirectional print. n i s valid only for the least significant
bit.
n Function
0 Deselects
1 Selects
[Caution] If unidirecti onal print is selecte d, the printer will print fr om the left to the right. When yo u
want to preve nt horizonta l shear in pri nting at hig h accuracy, speci fy unidirec tional print
with this command. (For double height print, et c.)