Code :

Code: E749-0008-00
Description: Error due to the DC Controller not compatible with the model
Causes: The DC Controller PCB or the Main Controller PCB which was used with another model was detected.
Remedy: It is not necessary to perform a remedy because the machine is automatically rebooted after log collection.

Code: E753-0001-00
Description: Download Error
Causes: Update of the system software failed.
Remedy: Perform the following in the order while checking whether the error is cleared. 1. Turn OFF and then ON the main power. 2. Reinstall the system software using SST or a USB memory. 3. Replace the FLASH PCB, and reinstall the system software. 4. Collect debug log and contact the sales company.

Code: E804-0000-00
Description: Power Supply Cooling Fan error
Causes: It was detected that the Power Supply Cooling Fan was locked.
Remedy: [Related parts] R1.00 - Harness between the Low-voltage Power Supply PCB (UN01/J323) and the Power Supply Cooling Fan (FM05/J5215) - Power Supply Cooling Fan (FM05) - Low-voltage Power Supply PCB (UN01) [Remedy] Check/replace the related harness/cable, connector and parts.

Code: E806-0100-05
Description: Drum Unit Suction Cooling Fan error
Causes: The Drum Unit Suction Cooling Fan did not rotate for the specified period of time since the start of drive.
Remedy: [Related parts] R1.00 - Harness between the DC Controller PCB (UN04/J180) and the Primary Transfer High-voltage PCB (UN03/J271) - Harness between the Primary Transfer High-voltage PCB (UN03/J272) and the Drum Unit Suction Cooling Fan (FM01) - Drum Unit Suction Cooling Fan (FM01) - Primary Transfer High-voltage PCB (UN03) - DC Controller PCB (UN04) [Remedy] Check/replace the related harness/cable, connector and parts. [Reference] Before replacing the DC Controller PCB, back up the service mode data (approx. 2 min) and restore the backup data after the replacement so the data may be able to be protected. - Backup: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMBUP - Restoration: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMRES

Code: E806-0101-05
Description: Drum Unit Suction Cooling Fan error
Causes: The Drum Unit Suction Cooling Fan rotated for more than the specified period of time after the stop of drive.
Remedy: [Related parts] R1.00 - Harness between the DC Controller PCB (UN04/J180) and the Primary Transfer High-voltage PCB (UN03/J271) - Harness between the Primary Transfer High-voltage PCB (UN03/J272) and the Drum Unit Suction Cooling Fan (FM01) - Drum Unit Suction Cooling Fan (FM01) - Primary Transfer High-voltage PCB (UN03) - DC Controller PCB (UN04) [Remedy] Check/replace the related harness/cable, connector and parts. [Reference] Before replacing the DC Controller PCB, back up the service mode data (approx. 2 min) and restore the backup data after the replacement so the data may be able to be protected. - Backup: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMBUP - Restoration: COPIER (LEVEL2)> FUNCTION> SYSTEM> DSRAMRES

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