The delivery tray paper height sensor (S10) does not go OFF 4 sec after the delivery tray ascent/descent motor (M5) starts to move down The delivery tray paper height sensor (S10) does not go ON 4 sec after the delivery tray ascent/descent motor (M5) starts to move up. The clock signal of the delivery tray ascent/descent motor clock sensor (S9) is not detected 15 times or more within 0.8 sec while the delivery tray ascent/ descent motor (M5) is in operation. The delivery tray upper limit sensor (S13) goes ON while the delivery tray ascent/descent motor (M5) is in operation. Composite power supply PCB, DC controller PCB Try replacing the composite power supply PCB. composite power supply PCB (FT133) transfer roller contact NO: Correct the connection. composite power supply PCB (J130-1) developing assembly contact d.
composite power supply PCB (J130-7) primary charging roller contact c.
DC controller PCB (J301) composite power supply PCB (J136) b. Wiring Is the wiring between the contacts for the following normal: DC controller PCB (J301), composite power supply PCB (J136), primary charging roller, developing assembly, transfer charging roller? a. Contact Is any of the contacts of the primary charging roller, developing assembly, or transfer charging roller soiled? Or, is there poor contact? YES: Clean the contact, and set it once again. The composite power supply PCB is faulty. The presence of a high-voltage error is communicated by the composite power supply PCB (The output for primary charging, developing, or transfer has deviated from a specific level of voltage)
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Horizontal registration motor, DC controller PCB Is the horizontal registration motor control signal generated by the DC controller PCB? J304-1/2: 24 V, J304-3/4/5/6: motor excitation signal YES: The horizontal registration motor is faulty. The sensor is faulty and cannot detect home position. The horizontal registration assembly malfunctions because of the presence of foreign matter. The horizontal registration assembly is out of place because of damage to the sensor lever. Sensor lever (damage and interference), Sensor Is abnormal noise heard from the horizontal registration assembly in keeping with the motor rotation? YES: a. DC controller PCB (J304) relay connector horizontal registration motor NO: Connect the connectors. DC controller PCB (J304) relay connector horizontal registration home position sensor b. Connector Are the connectors of the horizontal registration home position sensor and the horizontal registration motor connected? a. The horizontal registration motor is faulty. The horizontal home position sensor is faulty. At start-up, home position is not detected when the horizontal registration assembly is moved 100 mm in the direction of home position
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