Copyright 2008 Unitech Electronics Co., Ltd. All rights reserved. Unitech is a registered trademark of Unitech Electronics Co., Ltd.
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Copyright 2008 Unitech Electronics Co., Ltd. All rights reserved. Unitech is a registered trademark of Unitech Electronics Co., Ltd.
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Programming Information
This section lists the printer control command strings.
ASCII Control Characters
Character
Hex / Dec
Control Action
EOT
04/04
End of text
BS
08/08
Back space
HT
09/09
Horizontal tab
LF
0A/10
Line feed
VT
0B/11
Vertical tab
FF
0C/12
Form feed
CR
0D/13
Carriage return
SO
0E/14
Shift out
SI
0F/15
Shift in
XON
11/17
Transmitter on
AUXON
12/18
Printer on
XOFF
13/19
Printer receiver off
NORM
14/20
Return to default 42 column mode
AUXOFF
15/21
Printer to host : Printer is off
CANCEL
18/24
Cancel and reset printer buffer
ESC
1B/27
Escape
EXTEND
1C/28
Extended print
EXTEND OFF
1D/29
Extended print off / Normal print
Printer Font Commands - Courier Character Set
Font Name
Character Size ( W x H)
Command String
24 CPI Normal
8 x 23
ESC+’k’+’5’
21 CPI Normal
9 x 23
ESC+’k’+’4’
19 CPI Normal
10 x 23
ESC+’k’+’3’
16 CPI Normal
12 x 23
ESC+’k’+’2’
12 CPI Normal
16 x 23
ESC+’k’+’1’
13 CPI Rotated
14 x 16
ESC+’k’+’0’
Printer Font Commands
Command String
Printer Action
ESC - ‘F’ - 1
Selects International character set
ESC - ‘F’ - 2
Selects PC Line Draw character set
ESC - ‘U’ - ‘1’
Enable emphasized print
ESC - ‘U’ - ‘0’
Disable emphasized print
Below are the International and PC Line Character sets from 32 through 255:
International Character Set
PC Line Draw Character Set
Printer Graphic Commands
Command String
Printer Action
ESC - ‘A’ – n
Select dot line spacing between printed lines
ESC - ‘J’ – n
Graphic line feed command
ESC - ‘P’ - ‘#’
Select online mode, characters printed as received
ESC - ‘P’ - ‘$’
Select buffer mode, characters are printed on (^ D)
ESC - ‘V’ - n1 – n2
8-bit graphic command
ESC - ‘v’ - n1 – n2
RLE compressed graphic command
