Chapter 3: Character Size & Spacing Commands 17
Pitch Setting Commands for Compressed Printing (ML)
⻬ ML320 Std., ML321 Std. ⻬ ML320 Turbo, ML321 Turbo ⻬ ML520, ML521
Function ASCII Dec. Hex.
Select 17.1 cpi ASCII: GS Dec: 29 Hex: 1D
Select 20 cpi ASCII: ESC # 3 Dec: 27 35 51 Hex: 1B 23 33
Select Character Pitch/Point Size Command (Epson)
⻬ ML320 Turbo, ML321 Turbo
⻬ ML390 Turbo, ML391 Turbo ⻬ ML590, ML591
Function ASCII Dec Hex
Select Character Pitch/Point Size ESC X p P
n
L
p
H
p
27 88 70 P
n
L
p
H
p
1B 58 46 P
n
L
p
H
p
Use this command to place the printer in the scalable font mode and to select the character
pitch and the point size. Character pitch setting range is 5 to 20 characters per inch (cpi); point
size setting range is 8 to 64 points.
For the ML590 and ML591 printers, you can select any character pitch from 5 to 20 cpi for the
LQ Courier, LQ Roman and LQ Swiss typefaces. The Gothic, Orator, Prestige and Swiss Bold
typefaces will only print in point sizes 10, 10.5 and 21. The table below shows which typeface
will print in other sizes when these typefaces are selected.
Note: If you wish to use this command to print to an ML320/321 Turbo printer in a UNIX
environment, you must reboot the system after the command is entered.
Table 15: Epson ESC X Command —
Font Substitution for Models ML590 & ML591
Typeface that Prints
Typeface 8 Point 12 to 20 & 22 to 64 Point
Gothic Swiss Courier
Orator Swiss Courier
Prestige Roman Courier
Swiss Bold Swiss Courier
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