• Code: C3200
• Description: Exposure lamp problem • Check the CCD input value for the lighting status of the exposure lamp 500 ms after the exposure lamp is lit and the carriage is moved to the shading position. If the exposure lamp does not light, a further 100 ms later, check the CCD input. The exposure lamp does not light after 50 retries.
• Causes: Defective scannIncorrect shading position. er PWB. Defective exposure lamp or inverter PWB. Poor contact of the connector terminals. Defective CCD PWB.
• Remedy: Defective scanner PWB. Replace the scanner PWB and check for correct operation. Defective exposure lamp or inverter PWB. Replace the exposure lamp or inverter PWB. Incorrect shading position. Adjust the position of the contact glass (shading plate). If the problem still occurs, replace the scanner home position switch. Poor contact of the connector terminals. Check the connection of connectors YC3, YC4 and YC5 on the scanner PWB, YC5, YC6 and YC8 on the SHD PWB and YC1, YC2 and YC3 on the CCD PWB, and the continuity across the connector terminals. Repair or replace if necessary. Defective CCD PWB. Replace the CCD PWB and check for correct operation.

• Code: C3210
• Description: CIS lamp problem • After the reading starting, when input value at the time of CIS illumination does not exceed the threshold value between 5 s.
• Causes: Defective DP main PWB. Poor contact in the connector terminals. Defective CIS. Defective DP inverter PWB.
• Remedy: Defective DP main PWB. Replace the DP main PWB and check for correct operation. Poor contact in the connector terminals. Check the connection of connector YC2 on the DP main PWB and the continuity across the connector terminals. Repair or replace if necessary. Defective CIS. Replace CIS and check for correct operation. Defective DP inverter PWB. Replace the DP inverter PWB and check for correct operation.

• Code: C3300
• Description: Optical system (AGC) problem • After AGC, correct input is not obtained at CCD.
• Causes: Insufficient exposure lamp luminosity. Defective scanner PWB. Incorrect shading position. CCD PWB output problem. Poor contact of the connector terminals.
• Remedy: Insufficient exposure lamp luminosity. Replace the exposure lamp or inverter PWB. Defective scanner PWB. Replace the scanner PWB and check for correct operation. Incorrect shading position. Adjust the position of the contact glass (shading plate). If the problem still occurs, replace the scanner home position sensor. CCD PWB output problem. Replace the ISU. Poor contact of the connector terminals. Check the connection of connectors YC5, YC6 and YC8 on the SHD PWB and YC1, YC2 and YC3 on the CCD PWB, and the continuity across the connector terminals. Repair or replace if necessary.

• Code: C3310
• Description: Optical system (AGC) problem (DP) • After AGC, correct input is not obtained at CIS.
• Causes: Defective DP main PWB. CIS output problem. Defective DP inverter PWB.
• Remedy: Defective DP main PWB. Replace the DP main PWB and check for correct operation. CIS output problem. Replace CIS. Defective DP inverter PWB. Replace the DP inverter PWB and check for correct operation.

• Code: C3500
• Description: Communication error between scanner and SHD • An error code is detected.
• Causes: Defective SHD PWB. Poor contact in the connector terminals. Defective scanner PWB.
• Remedy: Defective SHD PWB. Replace the SHD PWB and check for correct operation. Poor contact in the connector terminals. Check the connection of connector YC3 on the scanner PWB and YC4 on the SHD PWB, and the continuity across the connector terminals. Repair or replace if necessary. Defective scanner PWB. Replace the scanner PWB and check for correct operation.

• Code: C3900
• Description: Backup memory read/write error (scanner PWB) • Read and write data does not match.
• Causes: Defective back up RAM or scanner PWB.
• Remedy: Defective back up RAM or scanner PWB. Replace the scanner PWB and check for correct operation.

• Code: C3910
• Description: Backup memory read/write error (scanner PWB) • Data in the specified area of the backup memory does not match the specified values.
• Causes: Problem with the backup memory data. Defective scanner PWB.
• Remedy: Problem with the backup memory data. Run maintenance item U022 to initialize the backup memory data. Defective scanner PWB. If the C3910 is displayed after initializing the backup memory, replace the main PWB and check for correct operation.

• Code: C4000
• Description: Polygon motor synchronization problem • The revolution does not reach the stable speed within 20 s of the START signal.
• Causes: Poor contact in the polygon motor connector terminals. Defective polygon motor. Defective engine PWB.
• Remedy: Poor contact in the polygon motor connector terminals. Reinsert the connector. Also check for continuity within the connector cable. If none, remedy or replace the cable. Defective polygon motor. Replace the laser scanner unit. Defective engine PWB. Check if 24 V DC is supplied to YC17-1 on the engine PWB. If not, replace the engine PWB.