Ricoh D143 Field Service Manual page 912

6. Troubleshooting
Sensor Name/
No.
Sensor Board Name
S41 TD Sensor - M
S42 TD Sensor - Y
S4 Fusing Exit Sensor
S13 Waste Toner Sensor
Waste Toner Bottle Set
SW3
Switch
Tray 2 Paper Size
SW5
Switch
Temperature/
S35
Humidity Sensor
Thermopile Center,
S36
Edge
910
Activ
CN Condition
e
Open/
A CN227/B7
Shorted
CN227/ Open/
A
B15 Shorted
Open
L CN204/12
Shorted
Open
H CN224/A5
Shorted
Open
L CN224/A7
Shorted
CN224/
Open/
L
A11, A12,
Shorted
A13, A15
CN234/ Open/
A
6, 8 Shorted
Open/
A CN212/3, 6
Shorted
Symptom
SC360-03
SC360-04
Jam C (Jam 19)
Jam C (Jam 1)
Waste toner near full
indicated when it is not
near full.
Waste toner near full
cannot be detected when
the waste toner bottle is
nearly full.
Waste toner bottle is not
detected when the waste
toner bottle is set.
Waste toner bottle is
detected when the waste
toner bottle is not set.
Paper size error
SC498
Printed image has some
problems such as rough
image, dirty background,
weak image or poor
fusing.
SC541, SC551