Lexmark 4079 colorjet printer plus Service Manual - Page 47

Lexmark 4079 colorjet printer plus Manual

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Ink Sensor 003 (continued) Check the ink sensor by checking for 5 V between the pins designated for each cartridge sensor on the CNINK connector while pushing the sensor up and down. See page 4-2 for connector location. Cyan Magenta Yellow Black pins 1 - 2 pins 3 - 4 pins 5 - 6 pins 7 - 8 BR BLBR R BR Y BR K 1 2 3 4 5 6 7 8 [ I I (K) K / ----17., -\ BL ...J - 7 0 j --",(,C, *) R ....,(V Y _. ./ \ I 6 To push down the ink sensor: insert a thin screwdrver just above the ink cartridge assembly and below the paper lift plate, then push the ink sensor plunger down. '-"'" Magenta NN The voltage should be Low when the sensor is on (the center of the sensor is up), and High when the sensor is off (the center of the sensor is down). Diagnostic Information 2-27

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Ink
Sensor
003
(continued)
Check
the
ink
sensor
by
checking
for
5
V
between
the
pins
designated
for
each
cartridge
sensor
on
the
CNINK
connector
while
pushing
the
sensor
up
and
down.
See
page
4-2
for
connector
location.
Cyan
pins
1
-
2
Magenta
pins
3
-
4
Yellow
Black
pins
5
-
6
pins
7
-
8
BR
BLBR
R
BR
Y
BR
K
1
2
3
4
5
6
7
8
[
I
I
(C*)
--",,,
....
,(V)
...
-
R
/---
-
...,.-
•.,
Y
_.
./
\
I
6
(K)
J
K
/
----17
.,
-\
BL
7
0
j
To
push
down
the ink
sensor:
insert
a
thin
screwdrver
just
above
the ink
cartridge
assembly
and
below
the
paper
l
ift
plate,
then
push
the
ink
sensor
plunger
down.
'-"'"
Magenta
NN
The
voltage
should
be
Low
when
the
sensor
is
on
(the
center
of
the
sensor
is
up),
and
High
when
the
sensor
is
off
(the
center
of
the
sensor
is
down).
Diagnostic
Information
2-27