Citizen Systems iDP3421 Input Buffer Backup Function, Buffer Size, Clearing the Input Buffer

iDP3420/3421/3423 User ’s Manual

8.INPUT BUFFER BACKUP FUNCTION

8.1Buffer Size

With the DIP switch, you can set either 6 K bytes or 256 bytes.

DIP switch segment 1-8 ON → 6K bytes

OFF → 256 bytes

8.2Input Buffer Backup

Even if the power is turned off or fails during the printing process, the data in the input buffer will be saved. If the power is turned on again, the printer will print a power failure mark, "==POWER DOWN==," in red

and reprints the data from the beginning of the line where it left off.

8.3Clearing the Input Buffer

When you want to clear the data in the input buffer, turn on the power, holding down the LF switch. A buzzer will sound to inform you that the input buffer has been cleared. Hold down the LF switch until the buzzer sounds.

If the printer prints the data erroneously at power-on, clear the input buffer as described above, and then, re-input the data.

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