Electrical Component Defects
SM Appendix 8-5 D037/D038/D040/D041
Appendix:
Electrical
Component
Defects
No.
Sensor Name/
Sensor Board Name
Active CN Condition Symptom
image or poor fusing.
Sxx Thermopile A CN237/14
Open/
Shorted
SC541
TH1
Heating Roller
Thermistor
A CN233/4
Open/
Shorted
SC551
TH2
Pressure Roller
Thermistor 1 (Center)
A CN233/11
Open/
Shorted
SC561
TH3
Pressure Roller
Thermistor 2 (Ends)
A CN233/9
Open/
Shorted
SC571
Open Jam C (Jam20)
S3 Paper Exit Sensor L CN227/21
Shorted Jam C (Jam60)
Sxx
Original Length
Sensor 1
A CN206/2
Open/
Shorted
Original paper size
cannot be detected.
Sxx
Original Length
Sensor 2
A CN206/5
Open/
Shorted
Original paper size
cannot be detected.
Open SC120
Sxx Scanner HP Sensor H CN205/2
Shorted SC121
Sxx Platen Cover Sensor L CN205/5
Open/
Shorted
Platen cover open
cannot be detected.
Sxx ITB Contact Sensor L CN234/5
Open/
Shorted
SC442
Open (Jam 24)
Sx Inverter Sensor L CN227/15
Shorted Jam C (Jam64)
SWx
Right Lower Door
Open Switch
L CN219/13
Open
"Open Cover" is
displayed.
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