Ricoh Mp C3000 Service Manual
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SM 4-39 B230/B237/D042 Trouble shooting No. Type Details (Symptom, Possible C ause, Troubleshooting Procedures) Tray 3 error (Paper Feed Unit or LCT) For the paper feed unit: ƒ When the tray lift motor is turned on, the upper limit is not detected within 10 seconds For the LCT: ƒ SC 503-01 occurs if the upper or lowe r limit is not detected within 8 seconds when the tray lift motor is turned on to lift or lower the tray. For the paper feed unit: ƒ Defective tray lift motor or connector disconnection ƒ Defective lift sensor or connector disconnection For the LCT: ƒ Defective stack transport clutch or connector disconnection ƒ Defective tray motor or connector disconnection ƒ Defective end fence home posit ion sensor or connector disconnection ƒ Defective upper limit sensor or connector disconnection ƒ Defective tray lift motor or connector disconnection 503-01 B 1. Check the cable connections. 2. Check and/or replace the defective component.
B230/B237/D042 4-40 SM No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures) Tray 3 error (Paper Feed Unit or LCT) This SC is generated if the follo wing condition occurs 3 consecutive times. For the paper feed unit: ƒ When the tray lowers, the tray lift sensor does not go off within 1.5 sec. For the LCT: ƒ When the main switch is turned on or when the LCT is set, if the end fence is not in t he home position (home pos ition sensor ON), the tray lift motor stops. ƒ If the upper limit does not go off for 1.5 seconds even the tray lift motor turns on to lower the tray after the upper limit has been detected at power on. For the paper feed unit: ƒ Defective tray lift motor or connector disconnection ƒ Defective lift sensor or connector disconnection For the LCT: ƒ Defective stack transport clutch or connector disconnection ƒ Defective tray motor or connector disconnection ƒ Defective end fence home posit ion sensor or connector disconnection 503-02 B 1. Check the cable connections. 2. Check and/or replace the defective component.
SM 4-41 B230/B237/D042 Trouble shooting No. Type Details (Symptom, Possible C ause, Troubleshooting Procedures) Tray 4 error (Paper Feed Unit or LCT) For the two-tray paper feed unit When the tray lift motor is turned on, the upper limit is not detected within 10 seconds. If this condition oc curs three consecutive times, the SC is generated. For the LCT If the upper or lower limit is not detec ted within 8 seconds when the tray lift motor is turned on to lift up or lower the tray ƒ Defective tray lift motor or connector disconnection ƒ Defective lift sensor or connector disconnection 504-01 B 1. Check the cable connections. 2. Check and/or replace the defective component.
B230/B237/D042 4-42 SM No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures) Tray 4 error (3 Tray Paper Feed Unit) This SC is generated if the follo wing condition occurs 3 consecutive times. For the two-tray paper feed unit ƒ When the tray lowers, the tray lift sensor does not go off within 1.5 sec. For the LCT ƒ If the upper limit does not go off for 1.5 seconds even the tray lift motor turns on to lower the tray after the upper limit has been detected at power on. ƒ Defective tray lift motor or connector disconnection ƒ Defective lift sensor or connector disconnection 504-02 B 1. Check the cable connections. 2. Check and/or replace the defective component. No. Type Details (Symptom, Possible C ause, Troubleshooting Procedures) Fusing/Paper exit fan error The BICU does not receive the lock signal 10 seconds after turning on the fusing/paper exit fan. ƒ Defective fusing/paper exit f an motor or connector disconnection ƒ Defective BICU 530 D 1. Check the connector and/or repl ace the fusing/paper exit fan motor.
SM 4-43 B230/B237/D042 Trouble shooting No. Type Details (Symptom, Possible C ause, Troubleshooting Procedures) Drive unit fan error The BICU does not receive the lock signal 10 seconds after turning on the drive unit fan motor. ƒ Defective drive unit fan motor 531 D 1. Replace the drive unit fan motor. No. Type Details (Symptom, Possible C ause, Troubleshooting Procedures) Ventilation fan (at the left side of the machine) motor-front/rear error The BICU does not receive the lock signal 10 seconds after turning on the ventilation fan motor-front/rear. ƒ Defective ventilation fan motor-front or rear 532 D 1. Replace the ventilation fan (at the left side of the machine) motor-front or rear. No. Type Details (Symptom, Possible C ause, Troubleshooting Procedures) Toner supply tube fan error The BICU does not receive the lock signal 10 seconds after turning on the toner supply tube fan motor. ƒ Defective toner supply tube fan motor-front or rear 533 D 1. Replace the toner supply tube fan motor.
B230/B237/D042 4-44 SM No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures) Fusing exit sensor fan error The BICU does not receive the lock signal 10 seconds after turning on the fusing fan motor. ƒ Defective fusing fan motor 534 D 1. Replace the fusing exit sensor fan motor (at the front right side of the machine). No. Type Details (Symptom, Possible C ause, Troubleshooting Procedures) PSU fan 1/2 error The BICU does not receive the lock signal 10 seconds after turning on the PSU fan 1/2 motor. ƒ Defective PSU fan motor 1/2 535 D 1. Replace the PSU fan motor 1/2 No. Type Details (Symptom, Possible C ause, Troubleshooting Procedures) Controller fan error The motor lock signal error is detec ted for 10 seconds after the motor lock signal was first detected. ƒ Defective controller fan motor 536 D 1. Replace the controller fan motor.
SM 4-45 B230/B237/D042 Trouble shooting No. Type Details (Symptom, Possible C ause, Troubleshooting Procedures) Fusing/Paper exit motor error The BICU does not receive the lock signal 10 seconds after turning on the Fusing/Paper exit motor. ƒ Motor overload ƒ Defective fusing/paper exit motor 540 D 1. Replace the fusing/paper exit motor. No. Type Details (Symptom, Possible C ause, Troubleshooting Procedures) Heating roller thermopile error 1 The temperature measured by the he ating roller thermopile does not reach 0°C for 6 seconds. ƒ Loose connection of the heat ing roller thermopile ƒ Defective thermopile 541 A 1. Check if the heating roller t hermopile is firmly connected. 2. Replace the thermopile. ⇒ Rev. 10/2007
B230/B237/D042 4-46 SM No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures) Heating roller warm-up error 1 ƒ After the main switch is turned on or the cover is closed, the increment of the heating roller te mperature per 10 seconds is 30°C or less. If this condition is detect ed five times consecutively, SC 542 is defined. ƒ The temperature detected by the heating roller thermopile does not reach 100°C for 15 seconds afte r the heating lamp is on. ƒ The heating roller temperatur e does not reach the ready temperature while 60 seconds af ter the heating lamp is on. ƒ The center temperature of the heating roller does not reach the ready temperature for 30 seconds after the both edge temperature of the heating roller has reac hed the ready temperature. ƒ Dirty or defective thermopile ƒ Defective thermistor ƒ Defective heating roller lamp 542 A 1. Check if the heating roller t hermistor is firmly connected. 2. Replace the thermistor. 3. Check or replace the thermopile. 4. Replace the heating roller lamp. ⇒ Rev. 10/2007
SM 4-47 B230/B237/D042 Trouble shooting No. Type Details (Symptom, Possible C ause, Troubleshooting Procedures) Heating roller fusing lamp overheat 1 (software error) The temperature detected by the heat ing roller thermopile stays at 230°C for 1 second. ƒ Defective PSU ƒ Defective IOB ƒ Defective BICU 543 A 1. Replace the PSU. 2. Replace the IOB. 3. Replace the BICU. No. Type Details (Symptom, Possible C ause, Troubleshooting Procedures) Heating roller fusing lamp overheat 1 (hardware error) The temperature detected by the heating roller thermopile reaches 250 °C. ƒ Defective PSU ƒ Defective IOB ƒ Defective BICU ƒ Defective fusing control system 544 A 1. Replace the PSU. 2. Replace the IOB. 3. Replace the BICU. ⇒ Rev. 10/2007 ⇒
B230/B237/D042 4-48 SM No. Type Details (Symptom, Possible Cause, Troubleshooting Procedures) Heating roller fusing lamp consecutive full power 1 When the fusing unit is not running in the ready condition, the heating roller fusing lamp keeps ON full power for 8 seconds or more. ƒ Broken heating roller fusing lamp 545 A 1. Replace the heating roller fusing lamp. 2. Replace the PSU. No. Type Details (Symptom, Possible C ause, Troubleshooting Procedures) Zero cross error ƒ The zero cross signal is detected three times even though the heater relay is off when turning on the main power. ƒ The zero cross signal is not det ected for 2 seconds even though the heater relay is on after turning on the main power or closing the front door. ƒ The detection error occurs twice or more in the 11 zero cross signal detections. This error is defined when the detected zero cross signal is less than 45. ƒ Defective fusing lamp relay ƒ Defective fusing lamp relay circuit ƒ Unstable power supply 547 D 1. Check the power supply source. 2. Replace the PSU ⇒ Rev. 10/2007