Ricoh Aficio MP C3001 - Page 903

Electrical Component Defects
SM 6-125 D086/D087
Trouble-
shooting
No.
Sensor Name/
Sensor Board Name
Active CN Condition Symptom
Humidity Sensor 25, 27 Shorted Printed image has
some problems such as
rough image, dirty
background, weak
image or poor fusing.
S34 Thermopile A CN209/16
Open/
Shorted
SC541
TH2
Thermistor
- Heating Roller
A CN212/22
Open/
Shorted
SC551
TH1
Thermistor
- Pressure Roller
A CN212/18
Open/
Shorted
SC561
S3 Paper Exit Sensor L CN204/9
Open Jam C (Jam 20)
Shorted Jam C (Jam 1)
S5
Paper Overflow
Sensor
L CN204/15
Open
Paper overflow
message is not
displayed when the
paper overflow
condition still remains.
Shorted
Paper overflow
message is displayed
when the paper
overflow condition does
not remain.
S41
Original Width
Sensor 1
A
CN313/14
SIO
Open/
Shorted
Original paper size
cannot be detected.
Original Width
Sensor 2
A
CN313/11
SIO
Open/
Shorted
Original paper size
cannot be detected.
S42
Original Length
Sensor 1
A
CN313/8
SIO
Open/
Shorted
Original paper size
cannot be detected.