Ricoh Aficio SP C440DN

No.
Sensor Name/
Sensor Board Name
Active
CN No./
Pin No.
Condition Symptom
22
Paper Height Sensor
1/2
A
CN116/A6,
A9
Open
Remaining paper volume
is wrong.
Shorted
23 Paper Feed Sensor L CN129/4
Open Paper is not detected.
Shorted • Paper is detected.
• Jam A
24
Vertical Transport
Sensor
L CN129/7
Open • Paper is not
detected.
• Jam A
Shorted • Paper is detected.
• Jam A
25 Paper Lift Sensor H CN129/13
Open SC501
Shorted SC501
26 Paper End Sensor L CN129/10
Open • Paper end is not
detected.
• Jam A
Shorted • Paper end is
detected.
27
Fusing Entrance
Sensor
L CN126/A14
Open Paper jam is not
detected.
Shorted • Paper jam is
detected.
• Jam B
28
Duplex Entrance
Sensor
L CN126/A8
Open • Paper is not
detected.
• Jam Z
Shorted • Paper is detected.
• Jam Z
Electrical Component Defects
631