Ricoh D010 MP2500 PR-C1
Troubleshooting. Electrical Component Defects 2
Sensors
| Component | CN | Condition | Symptom |
|---|---|---|---|
| Duplex Exit | 111-5 (DCB) |
Open | The Paper Jam message will appear whenever a duplex copy is made (paper has not reached the sensor). |
| Shorted | The Paper Jam message appears even if there is no paper at the sensor. | ||
| Duplex Inverter | 111-12 (DCB) |
Open | The Paper Jam message will appear whenever a duplex copy is made (paper has not reached the sensor). |
| Shorted | The Paper Jam message appears even if there is no paper at the sensor. | ||
| Tray 1 Paper Size 1/2/3 |
115-2/5/ 8 (BICU) |
Open | The CPU cannot detect the proper paper size, and misfeeds may occur when a copy is made from the paper tray 1. |
| Shorted | |||
| Tray 2 Paper Size 1/2/3 |
115-13/1 6/19 |
Open | The CPU cannot detect the proper paper size, and misfeeds may occur when a copy is made from the paper tray 2. |
| Shorted | |||
| Upper Tray Lift Sensor | 114-2 | Open | SC501 is displayed. |
| Shorted | Paper jam may occur during copying. | ||
| Lower Tray Lift Sensor | 114-5 | Open | SC502 is displayed. |
| Shorted | Paper jam may occur during copying. | ||
| Upper Tray Paper Height Sensor 1/2 |
113-2/5 | Open | The CPU cannot detect the paper height of the upper tray. |
| Shorted | |||
| Lower Tray Paper Height Sensor 1/2 |
113-8/11 | Open | The CPU cannot detect the paper height of the lower tray. |
| Shorted |
Note:
• SC392 is activated when the CPU detects an ID sensor error during developer initialization (SP3016-1). However, SC392 is not displayed on the LCD but simply logged in the SC log (SMC printout), unless the technician exits SP Mode as soon as an error message is displayed.
Switches
| Component | CN | Condition | Symptom |
|---|---|---|---|
| Vertical Transport Door | 110-13 (BICU) |
Open | The Cover Open indicator is lit even if the vertical transport door is closed. |
| Shorted | The Cover Open indicator is not lit even if the vertical transport door is opened. | ||
| By-pass Paper Size | 136 1,2,4,5 (BICU) |
Open | The CPU misdetects or is not able to detect the size of the paper set in the bypass tray, causing possible misfeeds when feeding from this tray. |
| Right Door | 124-5 (BICU) |
Open | The Cover Open indicator is lit even if the right door is closed. |
| Shorted | The Cover Open indicator is not lit even if the right door is open. | ||
| Front/Right Cover | 130-1 (BICU) |
Open | The Cover Open indicator is lit even if doors are closed. |
| Shorted | The Cover Open indicator is not lit even if doors are open. | ||
| Main | 281-1, 3 (PSU) |
Open | The machine does not turn on. |
| Shorted | The machine does not turn off. | ||
| Upper Tray Set | 115-11 | Open | The upper paper lift motor does not turn on when the main power switch is turned on or the upper tray is closed. |
| Shorted | The upper paper lift motor does not turn on when the upper tray is closed. | ||
| Lower Tray Set | 115-22 | Open | The lower paper lift motor does not turn on when the main power switch is turned on or the lower tray is closed. |
| Shorted | The lower paper lift motor does not turn on when the lower tray is closed. |
Blown Fuse Conditions
All the fuses in the following table are on the power supply board.
| Fuse | Rating | |
|---|---|---|
| 120 V | 220 - 240 V | |
| FU1 | 15A/125V | 8A/250V |
| FU2 | 6.3A/125V | 3.15A/250V |
| FU3 | 1A/250V | 1A/250V |
| FU4 | 4A/250V | 4A/250V |
| FU5 | 4A/250V | 4A/250V |
| FU6 | 4A/250V | 4A/250V |
| FU7 | 4A/250V | 4A/250V |
LED Display
BICU
| Number | Function |
|---|---|
| LED 1 | Monitors the +5 V line for the CPU and the surrounding circuit. Usually, this LED is blinking. |