Oki B6200 Maintenance Manual page 651

Signal line name
/SOS
/PCONT
Vref
MO/DET-OUT
/LDENB
XP DATA+
XP DATA-
/ROSMOT ON
/ROSMOT CLK
Chapter 7 Wiring Diagrams and Signal Information
SYNC signal generated by SOS Sensor. This signal commands
start of each scan.
Sample / Hold circuit
Low: Sampled (LD is forcibly lit up); High: Held
Laser output control signal for determining or adjusting the current
flowing through Laser Diode.
Laser output monitor signal for providing feedback of laser output
beam from Laser Diode (analog signal).
Control signal permitting emission of Laser Diode.
High: Laser Diode OFF.
Print image data.
Sensor Motor Control signal for turning ON/OFF Scanner Motor.
Low: ON / High: OFF
Clock signal to ROS Motor.
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Description
DATA+ > DATA-: lit up
DATA+ < DATA-: put out