The customer's device was returned for an investigation.The investigation confirmed traces of combustion and residual of soot.The investigation discovered the printer area was deformed due to heat, and the device did not turn on.The investigation found traces of urine at the drive unit, and the processor board was severely damaged by liquid.Also, the printer¿s thermo controlling chip was damaged and could not regulate the printer temperature anymore, which led to printer overheating.The investigation determined a liquid damaged the processor panel, which is consistent with product mishandling during device cleaning or routine testing.
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