Ricoh MP C4504 / MP C5504 / MP C6004 Service Call 312 - 396

20 febrero 2020 Troubleshooting

SC300 (Engine: Charge, Development)

SC312-01

Type: D Error Name: Charge Roller HVP_CB Output Error (K)

SC312-02

Type: D Error Name: Charge Roller HVP_CB Output Error (C)

SC312-03

Type: D Error Name: Charge Roller HVP_CB Output Error (M)

SC312-04

Type: D Error Name: Charge Roller HVP_CB Output Error (Y)
Error Condition: Charging AC is set to ON at the standard speed, and the FB voltage of the charging AC of each color is monitored for 200 ms at 20ms intervals (10 times) after 80ms of charge AC_ON, and below 0.3V is detected
continuously for 200ms (10 times), the SC of the corresponding color lights up, and machine operation is suspended.

Major Cause:

• High voltage harness defective or shorted.
• PCU setting fault or damage
• HVP_CB fault
• Connector disconnected
• Harness broken

Solution:

• High voltage harness reset/replacement
• PCU reset/replacement
• Replace the HVP_CB
• Connector reset
• Replace the harness

SC324-01

Type: D Error Name: Development motor: Bk: Lock
Error Condition:  Lock signals are observed at 2 sec intervals during motor ON, and a High level is detected at least 20 times

Major Cause:

• Motor defective
• Connector disconnected
• Harness broken
• IOB defective
• Development unit torque increased

Solution:

• Replace the motor
• Reconnect the connector
• Replace the harness
• Replace the IOB
• Replace the development unit
• Replace the drive unit

SC324-05

Type: D Error Name: Development motor: Bk: Lock
Error Condition: Lock signals are observed at 2 sec intervals during motor ON, and a High level is detected at least 20 times

Major Cause:

• Motor defective
• Connector disconnected
• Harness broken
• IOB defective
• Development unit torque increased

Solution:

• Replace the motor
• Reconnect the connector
• Replace the harness
• Replace the IOB
• Replace the development unit

SC360-01

Type: D Error Name: TD sensor adjustment error (K)

SC360-02

Type: D Error Name: TD sensor adjustment error (C)

SC360-03

Type: D Error Name: TD sensor adjustment error (M)

SC360-04

Type: D Error Name: TD sensor adjustment error (Y)
Error Condition: During TD sensor initialization, the TD sensor output voltage (Vt) cannot be adjusted to the target range (target value ± 0.2V, SP3-030-031 to 034) for 3 times consecutively

Major Cause:

• TD sensor defective
• Loose connection
• Harness broken
• Developer toner density differs from initial developer

Solution:

• Replace the development unit.

SC361-01

Type: D Error Name: TD sensor output error: Upper Limit (K)

SC361-02

Type: D Error Name: TD sensor output error: Upper Limit (C)

SC361-03

Type: D Error Name: TD sensor output error: Upper Limit (M)

SC361-04

Type: D Error Name: TD sensor output error: Upper Limit (Y)
Error Condition: TD sensor output: Vt (SP3-210-001 to 004) > output upper limit error threshold (SP3-211-002) continuously exceeded the upper limit
occurrence threshold value (SP3-211-003).

Major Cause:

TD sensor connector dropout (connection fault)

Solution:

  1. TD sensor connector missing check
  2. Check whether there is any error in the TD sensor harness (disconnection, etc.)
  3. If the sensor is defective, replace the development unit.

SC362-02

Type: D Error Name:  TD sensor output error: Lower limit (C)

SC362-03

Type: D Error Name: TD sensor output error: Lower limit (M)

SC362-04

Type: D Error Name: TD sensor output error: Lower limit (Y)
Error Condition: TD sensor output: Vt (SP3-210-001 – 004) < output lower limit error threshold (SP3-211-004) is continuously below the lower limit
occurrence threshold value (SP3-211-005)

Major Cause:

TD sensor connector missing/dropout

Solution:

  1. TD sensor connector missing check
  2. Check whether there is any error in the TD sensor harness
    (disconnection, etc.)
  3. If the sensor is defective, replace the development unit.

SC370-01

Type: D Error Name: TM (ID) sensor calibration error (F)

SC370-02

Type: D Error Name: Type: D Error Name:

SC370-03

Type: D Error Name: TM (ID) sensor calibration error (R)
Error Condition: Regular reflection optical output voltage of the Front or Center or Rear TM (ID) sensor: Vsg_reg cannot be adjusted to within target range.
Upper limit (SP3-320-013: initial value 4.5V)
Lower limit (SP3-320-014: initial value 3.5V)

Major Cause:

• TM (ID) sensor connector missing/ connection fault
• TM (ID) sensor detection window dirt
• TM (ID) sensor malfunction
• Undulation in the ITB, or belt slippage

Solution:

• Remove image transfer unit, and check for TM (ID) sensor connector
missing. If it is missing, reconnect it.
• Check for dirt on the ID sensor detection window. If te detection
window is dirty, clean by predetermined method (do not wipe dry).
• Check the condition of the ITB. If undulation or belt slippage has
occurred, re-install or replace the ITB.
• If neither of the above have occurred, perform TM (ID) sensor
replacement

SC396-05

Type: D Error Name: Drum motor (CMY) Lock
Error Condition: Lock signals are observed at 2 sec intervals during motor ON, and a High level is detected at least 20 times.

Major Cause:

• Motor defective
• Connector disconnected
• Harness broken
• IOB defective
• Unit torque increased.

Solution:

• Replace the motor
• Reconnect the connector
• Replace the harness
• Replace the IOB
• Replace the PCDU

 

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