Wiring Diagram Notations - Oki B6100 Technical Manual

Wiring Diagrams and Interconnections

Wiring Diagram Notations

The wiring diagrams presented in this manual use the following circuit notations to describe components
and signal paths within the printer.
A PLUG
A JACK
CONNECTION OF PIN 15 OF CONNECTORS P28
AND J28.
THE SIGNAL NAME OF A WIRE
THE VOLTAGE MEASURED WITH THE NEGATIVE
PROBE OF THE METER ON SG
THE VOLTAGE VALUE OF A SIGNAL
/ = The voltage goes LOW when the signal is ON.
In this case, the HEAT signal is ON, so the normal volt-
age of 3.3VDC drops to 0VDC.
SG SIGNAL GROUND
FG FRAME GROUND
RTN RETURN
There is continuity between SG and RTN. Con-
tinuity between FG and SG depends on circuit
specifications.
TTL TTL displayed in the HIGH level or LOW level
columns of the signal tables indicate the signal
is ECL_CMOS compatible.
HIGH is approx. 3.3 VDC
LOW is approx. 0 to 0.8 VDC
14-4 OKI B6100 Laser Printer - Base Engine Technical Manual
Version 1.0