Canon FAX-L240, Service Reference Manual

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18
##322 [RX] Fixing heater temperature abnormality
Cause:
Internal unit defect.
Solutions:
(1) Check the connections between the fixing ass’y and the PCNT board (J102) and between the
fixing ass’y and the SCNT board (J14).
(2) Check the connection between the PCNT board (J1) and the power supply unit (J202).
(3) Check the resistance between connector pins of the fixing ass’y.
J206-12 and J206-13: 436 to 301 k
Ω
(at 25°C)
J102-1 and J102-2: 25.1 to 28.8
Ω
(at 25°C)
If either resistance is incorrect, replace the fixing ass’y.
(4) Replace the PCNT board.
(5) Replace the power supply unit.
(6) Replace the SCNT board.
##324 [RX] Printer section scanner motor rotation rate abnormal
Cause:
Internal unit defect (Incorrect scanner motor speed)
Solutions:
(1) Check the connection between the LASER/scanner section (J802) and the SCNT board (J6).
(2) Replace the LASER/scanner section.
(3) Replace the SCNT board.