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Konica-Minolta bizhub 7718

Error Codes List page 1

  • Code: C0211
  • Description: Bypass tray lift-up failure
    - When a print cycle is completed, a jam is fixed, or the power switch is turned ON, if the bypass lift sensor (PS4) does not change from the unblocked to blocked condition after the lapse of a given period of time after the bypass pick-up solenoid (SD1) is turned ON, the machine retries the depressing motion. This trouble code is displayed if the PS4 is not blocked after the retry
    - While the bypass lift sensor (PS4) is blocked, if the PS4 is not unblocked after the lapse of a given period of time after the bypass pick-up solenoid (SD1) is turned ON, the machine retries the lifting motion. This trouble code is displayed if the PS4 is not unblocked after the retry
  • Remedy: 1 Check the connector between M1-PRCB CN6 for proper connection and correct as necessary. 2 Check M1 for correct drive coupling and correct as necessary. 3 Check the connector between PS4-relay CN6-PRCB CN8 for proper connection and correct as necessary. 4 Check the connector between SD1-relay CN4-relay CN6-PRCB CN8 for proper connection and correct as necessary. 5 PS4 I/O check, sensor check. 6 M1 operation check. 7 SD1 operation check. 8 Change PRCB.
  • Code: C2351
  • Description: Suction fan motor malfunction
    - The fan lock signal remains HIGH for a predetermined continuous period of time while the motor remains stationary.
  • Remedy: 1 Check the connector between FM5-relay CN13-PRCB CN14 for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 FM5 operation check. 4 Change PRCB.
  • Code: C2557
  • Description: Abnormally low T/C ratio
    - The T/C ratios detected by the TCR sensor board (TCRSB) are below the threshold for the detection of abnormally low T/C ratio for three successive times. However, if a toner empty condition is detected, this abnormality is not detected.
  • Remedy: 1 Check to see if developer is available. 2 Check the connector between TCRSBrelay CN14-PRCB CN10 for proper connection and correct as necessary. 3 Change TCRSB. 4 Execute “TCR AUTO ADJUST. 5 Change PRCB.
  • Code: C2558
  • Description: Abnormally high T/C ratio
    - The T/C ratios detected by the TCR sensor board (TCRSB) are above the threshold for the detection of abnormally high T/C ratio for three successive times.
    - The connector between TCRSB to PRCC is disconnected
  • Remedy: 1 Check to see if developer is available. 2 Check the connector between TCRSBrelay CN14-PRCB CN10 for proper connection and correct as necessary. 3 Change TCRSB. 4 Execute “TCR AUTO ADJUST. 5 Change PRCB.
  • Code: C255C
  • Description: TCR sensor adjustment failure
    - When AUTO ADJUST is performed, the difference between the TCR sensor output voltage determined by TCR AUTO ADJUST and the standard voltage is greater than the given value.
  • Remedy: 1 Check to see if developer is available. 2 Check the connector between TCRSBrelay CN14-PRCB CN10 for proper connection and correct as necessary. 3 Change TCRSB. 4 Execute “TCR AUTO ADJUST. 5 Change PRCB.
  • Code: C2702
  • Description: Abnormal image transfer voltage
    - The image transfer voltage remains more than 100 V continuously for a given period of time while the drum remains stationary.
  • Remedy: 1 Check the transfer roller unit for installation. 2 Change HV1. 3 Change PRCB.
Error Code
Service Mode, Troubleshooting
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