MO9740 Manual
Parallel (Centronics)
The parallel port is a standard
Pin | Direction | Definition | Pin | Direction | Definition |
1 | In | /STROBE | 13 | Out | SELECT |
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2 | In | Data1 | 14,15 |
| NC |
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3 | In | Data 2 | 16 | - | Ground |
4 | In | Data3 | 17 | - | Ground |
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5 | In | Data4 | 18NC |
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6 | In | Data5 | 19~30 | - | Ground |
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7 | In | Data6 | 31 |
| NC |
8 | In | Data7 | 32 | Out | /Fault |
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9 | In | Data8 | 33~36 | - | NC |
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10 | Out | /ACK |
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11 | Out | BUSY |
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12 | Out | PE |
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Auto Polling
Both the serial port and parallel port of this printer can be activated at the same time, i.e the printer can simultaneously communicate with two PC via different port. However as no port contention is made for this printer, if both PC transmit data at the same time to this printer, the data may become damaged in the receiving buffer.
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MO9740 Manual
ASCIITABLE
NUL |
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| 0 | @ | P | ' | P |
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SON | XON | ! | 1 | A | Q | a | q |
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STX |
| " | 2 | B | R | b | r |
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| XOFF | # | 3 | C | S | c | s |
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| $ | 4 | D | T | d | t |
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| NAK | % | 5 | E | U | e | u |
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ACK |
| & | 6 | F | V | f | v |
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BEL |
| ‛ | 7 | G | W | g | w |
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BS |
| ( | 8 | H | X | h | x |
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| ) | 9 | I | Y | i | y |
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LF |
| * | : | J | Z | j | z |
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| ESC | + ; | ; | K | [ | k | { |
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FF |
| , | < | L | \ | 1 | I |
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CR |
| - | = | M | ] | m | } |
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SO | RS | . | > | N | ^ | n | ~ |
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SI | US | / | ? | O | _ | o | DEL |
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