Oki OKIFAX OF-38 Field Service Manual - page 173
of
284
5.2
Optical Adjustment
5.2.1
General
Layout of optics
Figure
shows the optics layout as viewed from the front of the machine.
indicates that optical path.
Fig. 5.2.1
Layout of optics
Sensor output
PC board name
Measurement points
Specification
Testinstrument
Document to be used
:
and G (Ground)
2.8 V (White signal)
(Potentiometer)
Oscilloscope (Dual trace)
Test
(See Figure 5.2.3)
G:
Ground
External trigger
Sensor output
TP3:
Peak hold level output
TP4:
Sensor output (Sample hold)
Adjustment
Adjustment for black slice-level
Fig. 5.2.2
output adjustment and measurement points on the
12