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Component
In/Out
Name
Color Drum
In
Detection [H]
Drum Detection
In
[H]
A4/LT Drum
In
Detection [H]
Drum Unit
Out
Safety Switch [I]
Main PCB
CN No.
Signal Level
104-14
5V
0V
104-15
5V
0V
5V
104-16
0V
24V
0V
2-77
Description
Signal goes Low when the color drum is
installed. (CN118-2 and -3 are
shortened.) The Color Drum indicator
will light.
Signal goes Low when the drum is
installed. (CN118-2 and -4 are
shortened.) The A3 or DLT Drum
indicator will light when CN118-2 and -5
are open.
Signal goes Low when the A4/LT drum
is installed. (CN118-2 and -5 are
shortened.) The A4 or LT Drum
indicator will light.
CN118-7 of the drum unit connector
becomes 24 volts when the drum unit is
set.
1 December 1993
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Troubleshooting
