Ricoh MPC2010
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 |
|---|---|---|---|---|---|
| S14 | By-pass Paper Length Sensor | L | CN221/15 | Open | Paper size error |
| Shorted | |||||
| S16 | By-pass HP Sensor | H | CN221/21 | Open/ Shorted |
SC508 |
| S7 | Fusing Entrance Sensor | L | CN214/14 | Open | Jam B (Jam18) |
| Shorted | Jam C (Jam58) | ||||
| 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. | ||||
| 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. |
| S3 | Scanner HP Sensor | H | CN205/2 | Open | SC120 |
| Shorted | SC121 | ||||
| S4 | Platen Cover Sensor | L | CN205/5 | Open/ Shorted |
Platen cover open cannot be detected. |
| S20 | ITB Contact Sensor | L | CN234/5 | Open/ Shorted |
SC442 |
| SW2 | Right Lower Door Open Switch | L | CN219/13 | Open | "Open Cover" is displayed. |
| Shorted | "Open cover" cannot be detected. |