APPENDICES
Signal Description
Pin No. | Signal Name | IN/OUT | Explanation | ||||||
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1 | DATA STROBE | IN | Data is latched at the leading edge of | ||||||
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| this signal. | ||
2 - 9 | DATA 0 - 7 | IN | Parallel 8 bit data | ||||||
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10 | ACKNLG | OUT | Data reception is completed and the | ||||||
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| printer is ready for the next data | ||
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| reception when this signal becomes | ||
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| low. | ||
11 | BUSY | OUT | The printer cannot receive data when | ||||||
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| this signal is high. The signal becomes | ||
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| high under data receiving, | ||
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| error states. | ||
12 | PE | OUT | This signal becomes high when a | ||||||
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| paper empty state is detected. | ||
13 | SLCT | OUT | This signal becomes high when the | ||||||
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| printer is selected and low when it is | ||
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| deselected. | ||
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14 | AUTO FEED | IN | This signal is used only for the bi- | ||||||
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| directional interface as Host is busy. | ||
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31 | INPUT PRIME | IN | No connection inside | ||||||
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32 | FAULT | OUT | This signal becomes low when the | ||||||
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| printer is in the paper empty, | ||
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| or error states. | ||
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36 | SLCT IN | IN | This signal is used only for the bi- | ||||||
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| directional interface as R/ W . | ||
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