Code :

Code: E248-0001-04
Description: Reader backup error
Causes: Reading error was detected when the Controller IC of the Main Controller PCB read the Reader backup value in the Flash PCB.
Remedy: [Related parts] R1.00 - Flash PCB (UN91) - Main Controller PCB (UN81) [Remedy] Perform the following in the order while checking whether the error is cleared. After performing the remedy, enter the value of the service label again. 1. After executing "COPIER> FUNCTION> CLEAR> R-CON", turn OFF and then ON the main power, and check whether the error is cleared. 2. After replacing the Flash PCB, reinstall the system software using SST or a USB flash drive. 3. Replace the Main Controller PCB.

Code: E248-0002-04
Description: Reader backup error
Causes: The Controller IC of the Main Controller PCB failed to rewrite the Reader backup value in the Flash PCB.
Remedy: [Related parts] R1.00 - Flash PCB (UN91) - Main Controller PCB (UN81) [Remedy] Perform the following in the order while checking whether the error is cleared. After performing the remedy, enter the value of the service label again. 1. After executing "COPIER> FUNCTION> CLEAR> R-CON", turn OFF and then ON the main power, and check whether the error is cleared. 2. After replacing the Flash PCB, reinstall the system software using SST or a USB flash drive. 3. Replace the Main Controller PCB.

Code: E280-0001-04
Description: Scanner Unit communication error
Causes: Communication between the Main Controller and the Scanner Unit (front) was not started within the specified period of time.
Remedy: [Related parts] R1.00 - Harness between the Scanner Unit (front) and the Main Controller PCB (UN81) - Scanner Unit (front) - Main Controller PCB (UN81) [Remedy] Check/replace the related parts. After performing the remedy, check that the copy image is output normally.