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III. LIST OF SIGNALS
A. Input/output signals to/from DC controller PCB
Connector
Pin
Abbreviation I/O Logic
J201
A1
A2
A3
A4
Reservrd
A5
/VSREQ
A6
/VSYNC
A7
A8
A9
/CPSEL
A10
/SPCHG
A11
A12
A13
A14
A15
A16
B1
B2
B3
B4
Reserved
B5
B6
/CPRDY
B7
B8
B9
B10
B11
B12
B13
B14
B15
B16
C1
C2
C3
C4
C5
/PPRDY
C6
C7
C8
C9
C10
C11
C12
GND
GND
/FPCS
I
L
OPERATION PANEL CONTROLLER CHIP SELECT signal
O
P
VSYNC REQUEST signal
I
P
VERTICAL SYNC signal
/STS
O
L
STATUS signal
/CMD
I
L
COMMAND signal
I
COMTROLLER POWER SELCT signal
ANALOG
O
L
SPEED CHANGE signal
3.3V
O
3.3V
O
+5V
O
+5V
O
GND
GND
GND
GND
/FPO
O
L
OPERATION PANEL SERIAL OUTPUT signal
/RDY
O
L
READY signal
I
L
CONTROLLER POWER READY signal
/SBSY
O
L
STATUS BUSY signal
/CBSY
I
L
COMMAND BUSY signal
/PRFD
I
L
PRE-FEED signal
/PFED
O
L
PAPER FEED signal
3.3V
O
3.3V
O
+5V
O
+5V
O
GND
GND
VDO
I
H
VIDEO signal
/VDO
I
L
VIDEO signal
/FPI
I
L
OPERATION PANEL SERIAL INPUT signal
FPCK
I
P
OPERATION PANEL SERIAL CLOCK signal
I
L
PRINTER POWER READY signal
/PRNT
I
L
PRINT signal
/PCLK
O
P
PRINTER CLOCK signal
/CCLK
I
P
CONTROLLER CLOCK signal
/CCRT
O
L
CONDITION CHANGE REPORT
/PDLV
O
L
PAPER DELIVERY signal
3.3V
O
3.3V
O
APPENDIX
Signal name
A - 5
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