7. Command Set
No. | Command | Hex Code | Function Description | |
1 | LF | 0A | Prints out buffer and advances one line | |
2 | ESC J n | 1B | 4A n | Prints out buffer and advances n lines |
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| 18<=n<=FF |
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3 | ESC 2 | 1B | 32 | Sets line space to 1/6 inch or 30 dots |
4 | ESC 3 n | 1B | 33 n | Sets line space to n dots, n=30 default |
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| 0B<=n<=FF |
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5 | ESC ! n | 1B | 21 n | Sets fond size, n=00 default |
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| n=00, 10, | n=10 double height | |
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| 20, 30 | n=20 double width | |
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| n=30 double height and double width (This |
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| command gets overridden by ESC DC4 |
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| command.) |
6 | ESC SO | 1B | 0E | Sets double width printing for all characters |
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| subsequent to the command in a line (This |
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| command gets overridden by LF, CR, or ESC |
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| DC4 command.) |
7 | ESC DC4 | 1B | 14 | Resets to default font size |
8 | ESC c 5 n | 1B | 63 35 n | Enables Feed & Online buttons n=00 default |
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| 00<=n<=01 | Disables Feed & Online buttons n=01 | |
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| (The buttons get enabled automatically when |
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| paper roll being loaded.) |
9 | ESC * m n1 | 1B | 2A m n1 Sets dot matrix | |
| n2 d1…dx | n2 d1…dx | m=01 8 dots double density | |
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| m=01, 21 | m=21 24 dots double density | |
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| 00<=n1<=FFn1+256*n2 total number of horizontal dots | ||
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| n2=00, 01 | d=1 to print the dot | |
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| 00<=d<=FF d=0 not to print the dot | ||
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| x denotes the data number |
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| x=n1+256*n2 when m=01 |
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| x=(n1+256*n2)*3 when m=21 |
10 | ESC @ | 1B | 40 | Initializes printer and sets all defaults |
11 | ESC p | 1B | 70 m | Controls cash drawer |
| m n1 n2 | n1 n2 | n1 is the time for attracting | |
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| m=00 | n2 is the time for starting next attractive | |
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| 01<n1<=n2 | command, attractive time interval=n1*2ms, | |
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| n1<=n2<FF | response time interval=n2*2ms | |
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