heads.
Reading the Ink/Air Thermistor Status
The ink/air thermsitor status can be viewed either in “Tools | Service | Ink System
Tests | Ink/Air Thermistors” or on page 3 of the System Information screens. The
status screen looks like this:
Ink
Air
Thresh
Status
Black
116
85
105
INK
Cyan
119
85
105
INK
Magenta
115
85
105
INK
Yellow
118
85
105
INK
Lt. Cyan
118
83
103
INK
Lt. Magenta
116
83
103
INK
The Ink and Air columns show the current readings from those thermistors. Recall
that a single air thermistor is shared between two channels, so the Air value shown
for cyan is merely a copy of the value for black, and so on. The Thresh column (short
for threshold) is the Air value plus 20. The ink acts as a coolant; as ink empties from
the printhead and temperature inside increases, the values go down.
The air thermistor is the reference. The ink thermistor is compared to the air thermis-
The 1-by, 4-color (4 printheads) configurations
The 2-by, 6-color (12 printheads) configuration
1
K
2
C
3
M
4
Y
Air thermistors
Ink thermistors
T = Electronically mated thermistor triplets
T
T
1
K
2
K
3
C
4
C
5
M
6
M
7
Y
8
Y
9
LC
10
LC
11
LM
12
LM
Air thermistors
Ink thermistors
T = Electronically mated thermistor triplets
T
T
T
5400 Technical Training Manual
MacDermid ColorSpan Confidential
Page 23 of 39
MacDermid, Inc. 11311 K-Tel Drive, Minnetonka, MN 55343
Phone: 952-944-9457 Fax: 952-944-8507
