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Ricoh M022 MPC300 Z-C1
Troubleshooting. Electrical Component Defects 3
Sensors
| No. |
Sensor Name/ Sensor Board Name |
Active |
CN No./ Pin No. |
Condition |
Symptom |
| 28 |
Duplex Exit Sensor |
L |
CN126/A11 |
Open |
- Paper is not detected.
- Jam Z
|
| Short |
- Paper is detected.
- Jam Z
|
| 29 |
By-pass Paper End Sensor |
L |
CN126/B8 |
Open |
- Paper end is not detected.
- Jam A
|
| Shorted |
• Paper end is detected. |
| 30 |
By-pass Paper Size Sensor |
L |
CN126 |
Open |
• Paper is detected |
| Shorted |
• Paper is not detected |
| 31 |
Inverter Sensor |
L |
CN126/A8 |
Open |
- Paper is not detected.
- Jam Z
|
| Shorted |
- Paper is detected.
- Jam Z
|
| 32 |
Fusing Exit Sensor |
H |
CN104/12 |
Open |
Jam C |
| 33 |
Scanner HP Sensor |
L |
CN111/14 |
Open |
SC120,121 |
| Shorted |
|
Blown Fuse Conditions
Power Supply Unit
| Fuse |
Rating |
Symptom when turning on the main switch |
| 120V-127V |
220V-240V |
| FU1 |
8A/125V |
8A/125V |
- 24V power to the BCU and IPU not supplied.
- 24VS2 power to the BCU not supplied.
|
| FU2 |
8A/125V |
8A/125V |
- 24VS1 power to the BCU not supplied.
- 5VS power to the IPU not supplied.
|
| FU3 |
5A/250V |
5A/250V |
- 5V power to the BCU and IPU not supplied.
- 5VS power to the IPU not supplied.
|
| FU101 |
15A/250V |
8A/250V |
Fusing SC occurs. |
| FU102 |
10A/250V |
6.3A/250V |
No response |
| FU103 |
2A/250V |
2A/250V |
Power to all the anti-condensation heaters not supplied. |