Ricoh D106 MPC2551 DI-C1.5
Troubleshooting. Electrical Component Defects 2
Sensors
Note: The CN numbers in the following table are the connector numbers on the BCU.
No. | Sensor Name/ Sensor Board Name | Active | CN | Condition | Symptom |
---|---|---|---|---|---|
S7 | Fusing Entrance Sensor | L | CN214/14 | Open | Jam B (Jam18) |
Shorted | Jam C (Jam58) | ||||
S17 | Duplex Entrance Sensor | L | CN221/24 | Open | Jam Z (Jam27) |
Shorted | Jam Z (Jam67) | ||||
S18 | Duplex Exit Sensor | L | CN221/27 | Open | Jam Z (Jam25) |
Shorted | Jam Z (Jam65) | ||||
S34 | TD Sensor - K | A | CN212/B9, B11 |
Open/ Shorted |
SC372 |
S32 | TD Sensor - M | A | CN212/A9, A11 |
Open/ Shorted |
SC373 |
S33 | TD Sensor - C | A | CN212/B3, B5 |
Open/ Shorted |
SC374 |
S31 | TD Sensor - Y | A | CN212/A3, A5 |
Open/ Shorted |
SC375 |
S26 | Fusing Exit Sensor | L | CN227/18 | Open | Jam C (Jam19) |
Shorted | Jam C (Jam59) | ||||
S30 | PCDU Toner Collection Bottle Full Sensor |
H | CN211/9 | Open | Used toner near full indicated when it is not near full. |
Shorted | Used toner near full cannot be detected when the waste toner bottle is nearly full. | ||||
SW5 | PCDU Toner Collection Bottle Set Switch |
L | CN211/7 | Open | Toner collection bottle is not detected when the waste toner bottle is set. |
Shorted | Toner collection bottle is detected when the waste toner bottle is not set. | ||||
S29 | ITB Toner Collection Bottle Full Sensor |
H | CN211/4 | Open | Used toner near full indicated when it is not near full. |
Shorted | Used toner near full cannot be detected when the waste toner bottle is nearly full. | ||||
SW7 | Tray 2 Paper Size Switch | L | CN211/16, 17, 18, 20 | Open/ Shorted |
Paper size error |
Shorted | Tray 2 is detected when the tray 2 is not set. | ||||
S37 | Temperature/ Humidity Sensor |
A | CN222/15, 17 |
Open/ Shorted |
Printed image has some problems such as rough image, dirty background, weak image or poor fusing. |
S28 | 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 |
S27 | Paper Exit Sensor | L | CN227/21 | Open | Jam C (Jam20) |
Shorted | Jam C (Jam60) | ||||
S1 | Original Length Sensor 1 | A | CN206/2 | Open/ Shorted |
Original paper size cannot be detected. |
S2 | Original Length Sensor 2 | A | CN206/5 | Open/ Shorted |
Original paper size cannot be detected. |