SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC312-01

D

Charge Roller HVP-CB Output Error (K)

SC312-02

D

Charge Roller HVP-CB Output Error (C)

SC312-03

D

Charge Roller HVP-CB Output Error (M)

SC312-04

D

Charge Roller HVP-CB Output Error (Y)

  

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.

  
  • High voltage harness defective or shorted.
  • PCU setting fault or damage
  • HVP-CB fault
  • Connector disconnected
  • Harness broken
  • Imaging IOB defective

Check if the SC occurs by turning the power OFF then ON. If the SC occurs again, do the following steps. Check if the SC reoccurs by cycling the power after each step.

  1. Check the PCU for the following points and recover or replace the PCU if there are any defects.
    • Checking contaminants on the Charge Roller terminal [A]
    • Checking damage or deformation of the Charge Roller terminal [A]
    • Checking continuity to the Charge Roller terminal core bar [B]
  2. Check if all connectors related to PCDU are connected securely. Replace the connectors if they are disconnected, or loose.
  3. Recover or replace the parts of the main machine if there are any defects after checking the following points.
    • Checking contaminants on the charged power supplying plate [C]
    • Checking damage or deformation of the charged power supplying plate [C]
    • Checking continuity between the Charge Roller terminal core bar and the HVP (CB)
  4. Replace the HVP (CB).
  5. If SC occurs again, replace the Imaging IOB (PCB2).

SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC324-01

D

Development motor: Bk: Lock

Motor status is observed at 100ms intervals during motor ON, and the unlock status is detected at least 20 times

  • Motor defective
  • Connector disconnected
  • Harness broken
  • IOB defective
  • Development unit torque increased
  1. Taking care not to spill the developer, shake the development unit horizontally to spread the developer evenly.
  2. Replace the motor.
  3. Reconnect the connector.
  4. Replace the harness.
  5. Replace the Imaging IOB (PCB2).
  6. Replace the PCDU.

SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC324-05

D

Development motor: CMY: Lock

  

Motor status is observed at 100ms intervals during motor ON, and the unlock status is detected at least 20 times.

  
  • Motor defective
  • Connector disconnected
  • Harness broken
  • IOB defective
  • Development unit torque increased
  
  1. Taking care not to spill the developer, shake the development unit horizontally to spread the developer evenly.
  2. Replace the motor.
  3. Reconnect the connector.
  4. Replace the harness.
  5. Replace the Imaging IOB (PCB2).
  6. Replace the PCDU.

SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC360-01

D

TD sensor adjustment error (K)

SC360-02

D

TD sensor adjustment error (C)

SC360-03

D

TD sensor adjustment error (M)

SC360-04

D

TD sensor adjustment error (Y)

  
  1. Mu count is higher than the threshold which detects no developer.
  2. Mu count is lower than the upper/lower target thresholds three consecutive times.
  
  • TD sensor (S37)(S38)(S39)(S40) defective
  • Loose connection
  • Harness broken
  • Developer toner density differs from initial developer
  

Check if the SC occurs by turning the power OFF then ON. If the SC occurs again, do the following steps. Check if the SC reoccurs by cycling the power after each step.

  1. Check if all connectors related to TD sensor (S37)(S38)(S39)(S40) are connected securely. Replace the connectors if they are disconnected, or loose.
  2. Check the Development Unit for the following points and recover or replace it if there are any defects.
    • Gear came off
    • PCDU seal was not removed
    • Not initial developer
  3. Check the TD sensor (S37)(S38)(S39)(S40) and recover or replace it if there are any defects.
  4. Check the harness for TD sensor (S37)(S38)(S39)(S40). Replace the harness if it is disconnected, or damaged.
  5. Replace the BICU (PCB10) if the SC cannot be recovered even after executing steps 1 to 4.

SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC361-01

D

TD sensor output error: Upper Limit (K)

SC361-02

D

TD sensor output error: Upper Limit (C)

SC361-03

D

TD sensor output error: Upper Limit (M)

SC361-04

D

TD sensor output error: Upper Limit (Y)

  

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).

  

TD sensor (S37)(S38)(S39)(S40) connector dropout (connection fault)

  

Check if the SC occurs by turning the power OFF then ON. If the SC occurs again, do the following steps. Check if the SC reoccurs by cycling the power after each step.

  1. Check if all connectors related to TD sensor (S37)(S38)(S39)(S40) are connected securely. Replace the connectors if they are disconnected, or loose.
  2. Check the Development Unit for the following points and recover or replace it if there are any defects.
    • Gear comes off
    • Development unit is not installed correctly
  3. Check the TD sensor (S37)(S38)(S39)(S40) and recover or replace it if there are any defects.
  4. Check the values of SP3-030-061 to 064 (Init TD Sensor :Exe Initial mu count). If they are initial, perform the TD sensor adjustment (SP3-030-001 to 006).
  5. Check the Toner Supply Unit and recover or replace it if there are any defects. (When the image density is excessively low, the supply unit may have a possibility of abnormality)
    • Toner bottle is empty
    • Toner bottle drive error
    • Clogging in the supplying path
  6. Check the harness for TD sensor (S37)(S38)(S39)(S40). Replace the harness if it is disconnected, or damaged.
  7. Replace the BICU (PCB10) if the SC cannot be recovered even after executing steps 1 to 6.

Recovery Confirmation Procedure

  1. Turn ON the main power, and then print a sheet.
  2. Execute SP3-320-***(TD.Sens:Vt :Disp: Current: CMYK) to check the output value of the TD sensor (S37)(S38)(S39)(S40).
  3. Execute SP3-211-004 (Vt Limits Err :Disp Lower Threshold) to check the lower limit value.
    • Abnormal if the TD sensor output value is lower than the lower limit value
    • Normal if the TD sensor output value is equal to or larger than the lower limit value

SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC362-01

D

TD sensor output error: Lower limit (K)

SC362-02

D

TD sensor output error: Lower limit (C)

SC362-03

D

TD sensor output error: Lower limit (M)

SC362-04

D

TD sensor output error: Lower limit (Y)

  

TD sensor output: Vt (SP3-210-001 to 004) < output lower limit error threshold (SP3-211-004) is continuously below the lower limit occurrence threshold value (SP3-211-005)

  

TD sensor (S37)(S38)(S39)(S40) connector missing/dropout

  

Check if the SC occurs by turning the power OFF then ON. If the SC occurs again, do the following steps. Check if the SC reoccurs by cycling the power after each step.

  1. Check if all connectors related to TD sensor (S37)(S38)(S39)(S40) are connected securely. Replace the connectors if they are disconnected, or loose.
  2. Check the Development Unit for the following points and recover or replace it if there are any defects.
    • Gear comes off
    • Development unit is not installed correctly
  3. Check the TD sensor (S37)(S38)(S39)(S40) and recover or replace it if there are any defects.
  4. Check the values of SP3-030-061 to 064 (Init TD Sensor :Exe Initial mu count). If they are initial, perform the TD sensor adjustment (SP3-030-001 to 006).
  5. Check the Toner Supply Unit and recover or replace it if there are any defects.
    • Toner bottle driving error (left rotating)
  6. Check the harness for TD sensor (S37)(S38)(S39)(S40). Replace the harness if it is disconnected, or damaged.
  7. Replace the BICU (PCB10) if the SC cannot be recovered even after executing steps 1 to 6.

Recovery Confirmation Procedure

  1. Turn ON the main power, and then print a sheet.
  2. Execute SP3-320-***(TD.Sens:Vt :Disp: Current: CMYK) to check the output value of the TD sensor (S37)(S38)(S39)(S40).
  3. Execute SP3-211-004 (Vt Limits Err :Disp Lower Threshold) to check the lower limit value.
    • Abnormal if the TD sensor output value is lower than the lower limit value
    • Normal if the TD sensor output value is equal to or larger than the lower limit value

SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC370-01

C

TM (ID) sensor calibration error (F)

SC370-02

D

TM (ID) sensor calibration error (C)

SC370-03

C

TM (ID) sensor calibration error (R)

  

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)

Note: In the case of -01/-02, SC375 is displayed in precedence.

  

For details about cause and solution, refer to When SC370 (TM (ID) sensor calibration error) is Displayed.

  

SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC371-01

D

TM/ID sensor output error (front): Background area output (regular reflection)

SC371-02

D

TM/ID sensor output error (center): Background area output (regular reflection)

SC371-03

D

TM/ID sensor output error (rear): Background area output (regular reflection)

  

The output voltage of specular-reflected light of the TM/ID sensor is below the lower limit value.

Lower limit value: 0.3 (V)

  

  • TM (ID) sensor connector missing/connection error

  • TM (ID) sensor malfunction

  For details about cause and solution, refer to When SC371 (TM/ID Sensor Output Error: Background Output (Regular Reflection)) is Displayed.

SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC375-01

D

TM/ID sensor output error (front) :Detection of belt breakage 

SC375-03D

TM/ID sensor output error (rear) :Detection of belt breakage

  

The output voltage of specular-reflected light (Vsg_reg) of the TM/ID sensor is below the lower limit value displayed in the following SP.

Lower limit value (SP3-320-016)

Note: This SC is displayed in precedence over SC370.

  

  • TM (ID) sensor connector missing/connection error

  • TM (ID) sensor detection window dirt

  • TM (ID) sensor malfunction

  • Undulation in the ITB, or belt slippage
  For details about cause and solution, refer to "When SC375 (TM/ID sensor output error, belt damage detected) is Displayed".

SC No.

Type

Error Name/Error Condition/Major Cause/Solution

SC396-05

D

Drum motor (CMY) Lock

Motor status is observed at 100ms intervals during motor ON, and the unlock status is detected at least 20 times

  • Motor defective
  • Connector disconnected
  • Harness broken
  • IOB defective
  • Unit torque increased
  • Replace the motor.
  • Reconnect the connector.
  • Replace the harness.
  • Replace the Imaging IOB (PCB2).
  • Replace the PCDU.