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Option Controller Interface Connectors
Option Controller Interface Connector
Pin
Signal
A1
+5V
A2
RESET
A3
/PRINT
A4
/SPCHG
A5
/PDLV
A6
/undetermined 1
A7
N.C.
A8
/CKEN
A9
/TX
A10
GND
B1
+5V
B2
N.C.
B3
/VSYNC
B4
/PFED
B5
RETURN_BACK
GND
B6
undetermined 2
B7
/STROBE
B8
/RX
B9
/CLK
B10
GND
Signal Name
Reset Signal (unused)
Print Signal (unused)
Speed Change Signal (unused)
Paper Delivery Signal
For expansion
Communication Ready Signal
Send Data Line
Vertical Synchronized Request Signal
Paper Feed Signal
Connection confirmation
For expansion
Strobe Signal
Receive Data Line
Synchronized Clock Signal
6-41
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