Essilor Instruments APH 550 - Error Message “Printer Overheated” Appears

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5-4 Error message “Printer Overheated” appears
Main causes when error message “Printer Overheated” appears:
・ Failure of thermal printer
・ Failure of printer control board assy
“Printer Overheated” appears.
Replace the thermal printer.
Replace the printer control board assy.
OK
Does “Printer Overheated” still appear?
NO
YES