III. LIST OF SIGNALS
A. Input/output signals to/from engine controller PCB
A - 5
APPENDIX
J1 1 HOT I AC power input
J1 2 NEUTRAL I AC power input
J31 1 THRM I
Analog Thermistor signal
J31 2 GND
J31 3 DEL2 DR
J31 4 GND
J31 5 /DELSNS2 I H Fixing unit delivery detection signal 2
J50 1 +3.3V
J50 2 GND
J51 1 GND
J51 2 /BD O Pulse Beam detection signal (horizontal sync signal)
J51 3 /PPRDY I L Printer power ready signal
J51 4 /RDY O L Ready signal
J51 5 /TOP O L Top of page signal (vertical sync signal)
J51 6 /SBSY O L Status busy signal
J51 7 /STS O L Status signal
J51 8 /PCLK O Pulse Printer clock signal
J51 9 /CBSY I L Command busy signal
J51 10 /PRINT I L Print signal
J51 11 /PRFD I L Pre-feed signal
J51 12 /CPRDY I L Controller power ready signal
J51 13 GND
J51 14 /CMD I L Command signal
J51 15 /CCLK I Pulse Controller clock signal
J51 16 GND
J51 17 /VDO I H Video signal
J51 18 GND
J51 19 /CCRT O L Condition change report signal
J51 20 /PDLV O L Paper delivery signal
J51 21 /PFED O L Paper feed signal
J51 22 N.C.
J51 23 +5V O
J51 24 +5V O
J51 25 GND
J51 26 GND
J52 1 /HALF O Main motor speed switching signal
J52 2 /MRDY I L Main motor ready signal
J52 3 +24VA O
J52 4 +24VA O
J52 5 /MON O L Main motor drive signal
J52 6 GND
J52 7 GND
J53 1 +24VA O
J53 2 /ACC O Scanner motor acceleration signal
Connector Pin Abbreviation I/O Logic Signal name
