Oki MICROLINE ML320 Maintenance Manual - page 232
of
354
The PRINT switch does not function.
PRINT SW signal on pin 4
is at low level when the PRINT switch is pressed?
No
Replace CN or LXSP board.
The output signal on pin 12 of
or the input signals on pins and 19 of
occasionally drop to low level?
the output signal
the input signals on pins
and
Figure 27
No
The output signal on pin 10 of
or the input signals on pins
and
13
of
occasionally rise to high level?
the output signal
the input signals on pins
No Replace Q4.
Figure 28
Yes Replace
Replace
1-19