PC-D320/PC-D340/FAX-L400 Chapter 4: Maintenance and Service
4-25
E000 Fixing unit failure
Cause: (1) Shorted/broken wired main thermistor
(2) Shorted/broken wired sub thermistor
(3) Broken wired heater/blown thermal fuse
Solutions: (1) Turn the power off and remove the fixing unit from the machine.
Measure the resistance between the fixing unit connector J206-2
(FSRTH) and J206-1 (GND).
If the resistance is not within the range between 350 KW and 520
KW (room temperature of 20°C), replace the fixing film unit.
(2) Turn the power off and remove the fixing unit from the machine.
Measure the resistance between the fixing unit connector J206-3
(FSRTH2) and J206-4 (+3.3V).
If the resistance is not within the range between 370 KW and 520
KW (room temperature of 20°C), replace the fixing film unit.
(3) With the fixing film unit removed, if there is no continuity between
the fixing unit connectors J102-1 (ACH) and J102-2 (ACN), replace
the fixing film unit.
(4) Replace the ECNT board.
(5) Replace the SCNT board.
E100 Scanner unit failure
Cause: (1) Poor contact in the Laser/Scanner unit connectors
(2) Defective Laser/Scanner unit
(3) Poor contact in the SCNT board connectors
(4) Defective SCNT board
Solutions: (1) Reconnect the SCNT board connectors J507 and J508 correctly.
(2) Reconnect the Laser driver board (J801), and the Scanner motor
connector (J802).
(3) Replace the Laser/Scanner unit
(4) Replace the SCNT board.
E805 Fan failure
Cause: (1) While the fan is rotating, fan lock state is detected for 10 sec. or
more continuously.
(2) When the fan starts rotating, fan lock state is not detected within 10
sec.
Solutions: (1) Reconnect the ECNT board connector J203 correctly.
(2) Disconnect the ECNT board connector J203. Measure the voltage
between the ECNT board connector J203-1 (/FANON) and J203-2
(GND) immediately after power-ON.
If the voltage changes from 0V to about 24V, replace the fan.
(3) Replace the ECNT board.
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