Description: 919.52 Engine communication error was detected. 919.208 Engine backup media access error was detected. 919.212 K DR backup media access error was detected. 919.22 K TB backup media access error was detected. 919.224 Engine backup data discord was detected. 919.225 Engine board exchange abnormality was detected. 919.226 Engine flash ROM writing error was detected. 919.227 Engine flash ROM device abnormality was detected. 919.228 Engine firmware download communication error was detected. 919.24 Engine control abnormality was detected.
Remedy: Step 1 a Reset the printer. b Make sure that the cables are properly connected to the engine controller board and controller board. Does the problem remain? Go to step 2. The problem is solved. Step 2 Check the engine controller board pins for damage, and replace if necessary. See “Engine controller board removal”. Does the problem remain? Go to step 3. The problem is solved.