iDP3420/3421/3423 User’sMa nual
81 CITIZEN
ESC "U" n[Function] Selectingthe Unidirectional/Bidirectional print mode
[Code] <1B>H <55>H n
[Range] 0 ≤n≤255
[Outline] Thiscommands selects ordes elects unidirectionalprint.
n0 = 0 Bidirectional print
n0 = 1 Unidirectional print
ESC "@"[Function] Initializingthe printer
[Code] <1B>H <40>H
[Outline] This command cancels various conditions set after powe r-on to initializes the printer to the
conditions having existed at power -on. However, the input buffer is not initialized.