Oki B6100 Technical Manual page 501

The following table shows the signal names for the Fuser PWBA HKB26 MCU <=> ROS Assy path:
Signal Name
P.DATA Print Image Data
/nP.DATA Print Image Data
/LD Control signal which determines the drive voltage for the Laser Diode.
/LDEN Control signal which determines the drive voltage for the Laser Diode.
Vmf(D/A) Control signal for the Laser Diode
/SOS(IN) Synchronization signal generated by the PWBA SOS which indicates the start of each scan.
5VLD +5V power source to the Laser Diode (0V when the Cover Assy Front is open or the CRU is not
in place.)
/RMOT(OUT) Scanner Motor Control signal which switches the ROS Motor on and off
Low: ON, High: OFF
/RCLK Synchronization signal for the ROS Motor
The following table shows pin numbers, and voltage levels for the PWBA HKB26 MCU <=> ROS
Assy path:
Pin Pin
P22-1 P223-2
P22-2 P223-1
P21-1 P213-6
P21-2 P213-5
P21-4 P213-3
P21-6 P213-1
P21-8 P211-2
P21-12 P212-3
P21-13 P212-1
OKI B6100 Laser Printer - Base Engine Technical Manual
Version 1.0
Signal Direction
Signal Name
L: LDD, S: SOS, R: ROS,
P.DATA
/mP.DATA
/LD
/LDEN
Vmf(D/A)
5VLD
/SOS(IN)
/RMOT(OUT)
/RCLN(OUT)
Wiring Diagrams and Interconnections
DB9 PWBA HKB26 MCU <=> ROS Assy
Description
Trigger
M: MCU
M => L Level
M => L Level
M => L Level
M => L Level
M => L Level
M => L Level
M <= S Level
M => R Level
M => R -
HIGH LOW
Note
Level Level
3.3V 0V
3.3V 0V
- - Analog
- - Analog
- - Analog
5V 0V
TTL TTL
3.3V 0V
- - Pulse
14-27