Programming Information
This section lists the printer control command strings.
ASCII Control Characters
Character | Hex / Dec | Control Action |
EOT | 04/04 | End of text |
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BS | 08/08 | Back space |
HT | 09/09 | Horizontal tab |
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LF | 0A/10 | Line feed |
VT | 0B/11 | Vertical tab |
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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 |
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AUXON | 12/18 | Printer on |
XOFF | 13/19 | Printer receiver off |
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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 |
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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’ |
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19 CPI Normal | 10 x 23 | ESC+’k’+’3’ |
16 CPI Normal | 12 x 23 | ESC+’k’+’2’ |
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12 CPI Normal | 16 x 23 | ESC+’k’+’1’ |
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13 CPI Rotated | 14 x 16 | ESC+’k’+’0’ |
Copyright 2008 Unitech Electronics Co., Ltd. All rights reserved. Unitech is a registered trademark of Unitech Electronics Co., Ltd.
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Printer Font Commands
Command String | Printer Action | |
ESC - ‘F’ - 1 | Selects International character set | |
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ESC - ‘F’ - 2 | Selects PC Line Draw character set | |
ESC | - ‘U’ - ‘1’ | Enable emphasized print |
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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 |
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ESC - ‘P’ - ‘#’ | Select online mode, characters printed as received |
ESC - ‘P’ - ‘$’ | Select buffer mode, characters are printed on (^ D) |
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ESC - ‘V’ - n1 – n2 | |
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ESC - ‘v’ - n1 – n2 | RLE compressed graphic command |
Copyright 2008 Unitech Electronics Co., Ltd. All rights reserved. Unitech is a registered trademark of Unitech Electronics Co., Ltd.
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