SRP-F310/312
4-3-4 I/F PBA Detect Block Diagram
When the printer is ON, the printer checks what kind of the I/F PBA is installed. After detection, the CPU specify the I/O port properly. The following is the method of I/F PBA detection.
The I/F PBA has the three return Signal (MD0~2).
The CPU recognize the I/F PBA by the value of the three return signal.
I/F PBA | MD0 |
L | |
IEEE1284 | H |
No Connection | L |
4-3-5 RS-232C Communication Block Diagram
MD1
H
L
L
MD2
L
L
L
The CPU is used for serial communication. And also
[Figure 4-8 RS-232C Communication Block Diagram]
[Figure 4-9 RS-232C Communication Waveform]
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