What happened?
The printer is showing the message "Power supply unit is operating outside of specification". This message is shown when a major power failure is detected.
Error name: AC controller fault
Error code: #35339
How to fix it?
Stable power source
Ensure the printer is connected directly to a stable power source. Avoid using UPS units or generators.
Possible AC box fault
If the message continues to appear after connecting to a stable power source, please let our technical support know, as it is likely the error is caused by a fault in the AC power supply box.
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