Signal | Return | Direction | Description | ||||||
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35 |
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| OUT | Pulled up to +5 V through 3.3 |
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| K W resistance. | |
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36 |
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| SLCT IN | IN | The DC1/DC3 code are valid | |||
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| only when this signal is |
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| high. (This signal can be fixed |
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| low by changing a DIP switch, |
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| jumper, or SelecType setting on |
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| the printer.) The printer |
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| monitors this signal, so this |
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| signal’s function depends on |
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| the printer’s specifications. |
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Note
•The column heading Direction refers to the direction of signal flow as viewed from the printer.
•All interface conditions are based on TTL level. Both the rise and fall of each signal must be less than 0.2 µseconds.
14