Ricoh Aficio MP C305SP Field Service Manual page 727

Sensor Name/
No.
Sensor Board Name
S27 Paper Exit
Pressure Roller
TH1
Thermistor (End)
Pressure Roller
TH2
Thermistor
TH3 Fusing Thermistor (End)
Temperature Detection
TH4
Sensor
Cover Open/close
SW4
Sensor
SW5 Paper tray set sensor
Waste toner bottle set
SW6
sensor
CN No./
Active
Pin No.
L CN525/7
A CN568/4
A CN568/2
A CN568/6
A CN526/4
L CN559/19
L CN543/15
L CN535/1
Electrical Component Defects
Condition Symptom
Open • Jam C (Jam 20)
Shorted • Jam C (Jam 60)
Open
• SC551
Shorted
Open
• SC571
Shorted
Open
• SC561
Shorted
Open
• SC497
Shorted
• "Open Cover" is
Open
displayed.
• "Open Cover"
Shorted
cannot be detected.
• Paper tray cannot
Open
be detected.
• Paper tray is
detected when the
Shorted
paper tray is not
set.
• Waste toner bottle
Open
cannot be detected.
• Waste toner bottle
is detected when
Shorted
the waste toner
bottle is not set.
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