Chapter 1 Product Overview Unrecoverable Errors Printing is no longer possible when unrecoverable errors occur. If the same error occurs again even after turn- ing the power back on, contact qualified service personnel. Immediately turn off the power and remove the battery when unrecoverable errors occur. CAUTION 1 27 Error Error description Error LED flash code Internal circuit error Internal circuits are not connected cor- rectly. R/W error in memory After R/W checking, the printer does not work correctly. High voltage error The power supply voltage is high. Overload error The temperature of the print head or bat- tery is extremely high or low.
CPU execution error The CPU is executing an incorrect address. Wireless communication unit error Wireless communication does not work correctly or the wireless communication unit is disconnected.