Description: Bypass tray up/down failure
- While the bypass lift sensor (PS2) is in the OFF state after the power is turned ON, output is finished, or a paper jam is cleared, PS2 is not turned ON within the given time after the bypass pick-up solenoid (SD1) has been turned ON. Then SD1 is turned ON again, but PS2 cannot be turned ON within the given time.
- When the bypass lift sensor (PS2) is in the ON state, PS2 is not turned OFF within the given time after the bypass pick-up solenoid (SD1) has been turned ON.
Remedy: 1 Check the connector between M1-MFPB P006 for proper connection and correct as necessary. 2 Check M1 for correct drive coupling and correct as necessary. 3 Check the connector between CL1-relay CN3-relay CN6- MFPB P008 for proper connection and correct as necessary. 4 CL1 operation check. 5 Check the connector between SD1-relay CN4-relay CN6- MFPB P008 for proper connection and correct as necessary. 6 M1 operation check. 7 SD1 operation check. 8 Change MFPB.
Code: C03FF
Description: Faulty model setting
- “Model Setting” of “Adjust” available from the Service mode is incorrectly set.
Remedy:
Code: C2351
Description: Cooling fan motor malfunction
- The fan lock signal remains HIGH for a predetermined continuous period of time while the cooling fan motor (FM2) is turning.
Remedy: 1 Check the connector between FM2-relay CN27-MFPB P013 for proper connection and correct as necessary. 2 Check the fan for possible overload and correct as necessary. 3 FM2 operation check. 4 Change MFPB.
Code: C2557
Description: Abnormally low toner density detected TCR sensor board
- 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 TCRSB-relay CN14-MFPB P010 for proper connection and correct as necessary. 3 Change TCRSB. 4 Change MFPB.
Code: C2558
Description: Abnormally high toner density detected TCR sensor board
- 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 MFPB to TCRSB is disconnected.
Remedy: 1 Check to see if developer is available. 2 Check the connector between TCRSB-relay CN14-MFPB P010 for proper connection and correct as necessary. 3 Change TCRSB. 4 Change MFPB.
Code: C255C
Description: TCR sensor board adjustment failure
- When TCR 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 threshold value.
Remedy: 1 Check to see if developer is available. 2 Check the connector between TCRSB-relay CN14-MFPB P010 for proper connection and correct as necessary. 3 Change TCRSB. 4 Change MFPB.