Chapter 14: Epson - Standard Function
14-30
A set-up vertical format unit and set vertical tabs are not reset by
this command.
A defined page length is not affected if the basic step size is chan-
ged later on.
If the printer is reset, the page length in the initial setting becomes
valid again.
Function Dec. Hex. ASCII
Setting of horizontal 27 40 85 1B 28 55 ESC (U
and vertical basic step size Ln Hn Pn Ln Hn Pn Ln Hn Pn
Ln = 0 to 255
Hn = 0 to 255 (MSB ignored)
Pn = 0 to 255 (MSB ignored)
With this command, the basic step sizes for the horizontal and ver-
tical direction can be defined.
The parameters Ln and Hn specify the number of parameters which
follow:
Hn = integer (number of characters / 256)
Ln = number of characters - (Hn * 256)
For this command, Hn = 0 and Ln = 1 must be set. With Ln = Hn = 0,
this command is ignored. With Ln+Hn*256>1, all Ln+Hn*256-1
data following Pn are ignored. The parameter Pn specifies the basic
step size = Pn/360 inch. The following table gives the possible values:
Value of Pn Defined basic step size
00 ≤ Pn ≤ 09 no change
10 ≤ Pn ≤ 19 1/360 inch
20 ≤ Pn ≤ 29 1/180 inch
30 ≤ Pn ≤ 39 1/120 inch
40 ≤ Pn ≤ 49 1/90 inch
50 ≤ Pn ≤ 59 1/72 inch
60 ≤ Pn ≤ 69 1/60 inch
70 ≤ Pn ≤ 127 no change
Horizontal and
vertical basic step
size
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