Description: Main PWB - Engine PWB communication error
Remedy: Faulty connection of the connector between the main PWB and engine PWB. Check the installation of the main PWB and engine PWB and reinstall them if necessary. Defective main PWB. Turn the power switch off/on to restart the printer. If the error is not resolved, replace main PWB. Defective engine PWB. Replace engine PWB.
Code: F050
Description: Engine PWB ROM checksum error
Remedy: Some error may have occurred when downloading the firmware of the engine PWB. Download the firmware of the engine PWB again using the memory card. Defective engine PWB. Turn the power switch off/on to restart the printer. If the error is not resolved, replace engine PWB.
Code: F186
Description: Main PWB video data control error
Remedy: Defective main PWB. Turn the power switch off/on to restart the printer. If the error is not resolved, replace main PWB.