A Main Specifications
314
Appendix
Descriptions of Signals
Both directions OFF
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nStrobe (Pin No.1)
Synchronizing signal to read Data 1 to 8. LOW active pulse is necessary.
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Data1 to 8 (Pin No.2 to 9)
8-bit parallel data input. Data 1 is the least significant bit (LSB) and Data 8 is the most significant
one (MSB).
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nAck (Pin No.10)
LOW active pulse signal indicating that the printer has received data
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Busy (Pin No.11)
HIGH active signal indicating that the printer is not ready to receive data
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PError (Pin No.12)
HIGH active signal indicating that there is no more paper
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Select (Pin No.13)
HIGH active signal indicating that data can be received
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nAutoFd (Pin No.14)
Signal when both directions are ON
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Chassic Gnd (Pin No.17)
Connected to the frame ground
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Peripheral Logic High(Pin No.18)
+5V voltage on the printer side
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Signal Ground(Pin No.19 to 30)
Connected to each signal ground
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nInit (Pin No.31)
LOW active pulse signal requesting the initialization of the printer
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nFault (Pin No.32)
LOW active signal indicating a paper jam or other printer fault
●
nSelectIn (Pin No.36)
Signal when both directions are ON
Both directions ON
The signal wires conform to the IEEE 1284 standards.
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