15. Malfunction code
Field Service Ver. 1.0 Apr. 2005
142
ineo 161
ineo 210
T
roubleshooting
B. Detection Timing
Relevant Electrical Components
Fusing Roller Heater Lamp (H1)
Fusing Roller Sub Heater Lamp (H2)
Fusing Roller Thermistor
Fusing Roller Sub Thermistor (TH2)
Fusing Roller Thermostat (TS1)
Fusing Unit Interlock Switch (S2)
Power Supply Unit (PU1)
Master Board (PWB-A)
Step
Operations
Ref.
Page
WIRING DIAGRAM
Control signal
Location
(Electrical
Components)
1
Check that the Fusing Roller Heater
Lamp (H1) turns ON when the Power
Switch is turned ON and correct or
replace the lamp as necessary.
–
–
–
2
Check that the Fusing Roller Sub
Heater Lamp (H2) turns ON when
the Power Switch is turned ON and
correct or replace the lamp as neces-
sary.
–
–
–
3
Check the Fusing Roller Thermostat
(TS1) for operation.
<Check procedure>
Check the resistance of TS1. TS1 is
open-circuited if its resistance is
infinity.
–
–
F-2
4
Check the Fusing Unit Interlock
Switch (S2) for operation.
<Check procedure>
Check continuity across the following
terminals when S2 is ON.
• Across S2-1A and S2-1B
• Across S2-2A and S2-2B
–
–
E-16
5
Check the Fusing Roller Thermistor
(TH1) and Fusing Roller Sub Ther-
mistor (TH2) for installation and cor-
rect or clean as necessary.
–
–
–
6
Check the Fusing Roller Thermistor
(TH1) for operation.
<Check procedure>
Disconnect CN15 (4P) and check the
resistance across CN15-2 and 3 on
the Thermistor side. TH1 is open-cir-
cuited if the resistance is infinity.
–
–
D-2
7
Check the Fusing Roller Sub Ther-
mistor (TH2) for operation.
<Check procedure>
Disconnect CN22 (4P) and check the
resistance across CN22-2 and 3 on
the Thermistor side. TH2 is open-cir-
cuited if the resistance is infinity.
–
–
D-2
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