Các lỗi thường gặp

Code :
  • Code: C011
  • Description: Backup memory data problem
    • Data in the specified area of the backup memory does not match the specified values.
  • Causes: Defective main PCB.
  • Remedy: Replace the main PCB and check for correct operation.
  • Code: C021
  • Description: Operation unit PCB communication problem (20 cpm copier only)
    • There is no reply after 20 retries at communication.
  • Causes: Defective main PCB.
  • Remedy: Replace the main PCB and check for correct operation.
  • Code: C034
  • Description: Finisher communication problem
    • Communication errors from the communication microcomputer on the main PCB: No communication: there is no reply after 3 retries. Abnormal communication: a communication error (parity or checksum error) is detected five times in succession.
  • Causes: Poor contact of the connector terminals. Defective copier main PCB. Defective finisher main PCB.
  • Remedy: Check the connection of connectors CN17 and CN18 on the main PCB and the finisher main PCB, and the continuity across the connector terminals. Repair or replace if necessary. Replace the main PCB and check for correct operation. Replace the finisher main PCB and check for correct operation.
  • Code: C040
  • Description: DIMM problem
    • Information on DIMM cannot be read out correctly at power-on.
  • Causes: Poor contact of the memory board
  • Remedy: Check the insertion of the memory board**.
    **: Optional for the 15 cpm copier only.
  • Code: C041
  • Description: Bitmap problem
    • There is a problem with the data or address bus of the bitmap DRAM.
  • Causes: Poor contact of the DIMM.
  • Remedy: Check the insertion of the DIMM into connector CN2 on the memory board (for the 15 cpm copier). Check the insertion of the DIMM into connector CN34 on the main PCB (for the 20 cpm copier).
  • Code: C043
  • Description: DMA problem
    • DMA transmission of compressed, decompressed, rotated, relocated or blanked-out image data does not complete within the specified period of time.
  • Causes: Defective main PCB.
  • Remedy: Replace the main PCB and check for correct operation.
  • Code: C100
  • Description: Exposure lamp problem
    • Check the CCD input value for the lighting status of the exposure lamp 100 ms after the exposure lamp is lit and the carriage is moved to the shading position. If the exposure lamp does not light, turn off the lamp. After 500 ms, light the lamp again and, a further 500 ms later, check the CCD input. The exposure lamp does not light after 5 retries.
  • Causes: Poor contact of the connector terminals. Defective exposure lamp. Defective main PCB. Incorrect shading position. CCD PCB output problem.
  • Remedy: Check the connection of connectors CN24, CN23, CN22 and CN3 on the main PCB, and the continuity across the connector terminals. Repair or replace if necessary. Replace the exposure lamp or inverter PCB. Replace the main PCB and check for correct operation. Adjust the position of the contact glass (shading plate). If the problem still occurs, replace the scanner home position switch. Replace the ISU.
  • Code: C104
  • Description: Optical system problem
    • After AGC, correct input is not obtained at CCD.
  • Causes: Poor contact of the connector terminals. CCD PCB output problem. Defective main PCB.
  • Remedy: Check the connection of connectors CN23, CN22 and CN3 on the main PCB, and the continuity across the connector terminals. Repair or replace if necessary. Replace the ISU. Replace the main PCB and check for correct operation.
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