![](http://pdfasset.owneriq.net/b/5a/b5a26789-bc09-408a-a405-90e1c44ac784/b5a26789-bc09-408a-a405-90e1c44ac784-bg5c.png)
ESC "U" n
[Function] Selecting the Unidirectional/Bidirectional print mode
[Code] <1B>H <55>H n
[Range] 0 ≤ n ≤ 255
[Outline] This command selects or deselects unidirectional print.
n0 = 0 Bidirectional print
n0 = 1 Unidirectional print
ESC "@"
[Function] Initializing the printer
[Code] <1B>H <40>H
[Outline] This command cancels various conditions set after power-on to initializes the printer to the
conditions having existed at power-on. However, the input buffer is not initialized.