Lexmark 4079 colorjet printer plus Service Manual - Page 77
Resistance, Voltage., Voltage, Black, 74-4.46, Magenta, Yellow, Diagnostic, Informatimi
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Head Temp/Heat Pulse Check the resistance and voltage between each pin and frame ground. Head Black Cyan Magenta Yellow Pin Resistance 12 3k-4k O 15 3k-4k O 14 3k-4k O 13 3k-4k O Voltage. 1.02 - 5.03 V 1.02 - 5.03 V 1.02 - 5.03 V 1.02 - 5.03 V Pin' Voltage 4 I 74-4 46 V 2 1.74-4.46 V 1 1 74-4.46 V 5 1 74-4.46 V Is the data signal correct? Yes No 004 Replace the defective head. L 005 - Replace the carriage board. Is the error corrected? Yes No [006 Replace the logic board. 007 End the call Diagnostic Informatimi 2-57
Head
Temp/Heat
Pulse
Check
the
resistance
and
voltage
between
each
pin
and
frame
ground.
Head
Pin
Resistance
Voltage.
Pin'
Voltage
Black
12
3k
-4k
O
1.02
-
5.03
V
4
I
74-4
46
V
Cyan
15
3k
-4k
O
1.02
-
5.03
V
2
1.74-4.46
V
Magenta
14
3k
-4k
O
1.02
-
5.03
V
1
1
74-4.46
V
Yellow
13
3k
-4k
O
1.02
-
5.03
V
5
1
74-4.46
V
Is
the
data
signal
correct?
Yes
No
004
Replace
the
defective
head.
L
005
—
Replace
the
carriage
board.
Is
the
error
corrected?
Yes
No
[006
Replace
the
logic
board.
007
End
the
call
Diagnostic
Informatimi
2-57