Unrecoverable Errors Printing is no longer possible when unrecoverable errors occur. If the error persists after turning the printer off and then on again, the printer may be defective. Contact qualified service personnel. Turn off the power immediately when unrecoverable errors occur. CAUTION 22 Error Error description Error LED flash code Memory R/W error After R/W checking, the printer does not work correctly. LED ON LED OFF Approx. 320 ms High voltage error The power supply voltage is extremely high. LED ON LED OFF Approx. 320 ms Low voltage error The power supply voltage is extremely low. LED ON LED OFF Approx. 320 ms CPU execution error The CPU is executing an incorrect address.
LED ON LED OFF Approx. 320 ms Internal circuit connection error Internal circuits are not connected correctly. LED ON LED OFF Approx. 320 ms Approx. 5120 ms Communication unit error An error has occurred in the communication unit. LED ON LED OFF Approx. 320 ms Status Display Power LED Error LED Paper LED Online ON OFF OFF Initializing after restarting ON ON - Running a self-test ON OFF - Waiting to continue self-test ON OFF Flashing Feeding using the Feed button ON OFF - Waiting to execute a macro ON OFF Flashing Roll paper cover open during error printing ON ON - No paper ON ON ON