(1) command errors

    an error results if a command length error, command transmission sequence error, command format error or parameter designation error is found in analyzing the command. an error results if the format command of a field is not transmitted and its data command is transmitted.

    when calling the pc save command of the field which is not saved is attempted, an error results. an undefined command is not detected as an error, and data is discarded until [nul] or [}] is received.

    (2) hard errors

    an error results if a framing error, overrun error or parity error is found during data reception when using the serial interface (rs-232c).

    * at the moment when a command error or hard error occurs, the printer shows the error message and makes status response before stopping. the status request command and reset command only can be processed and other commands are not processed. when the printer is restored by the [restart] key, the printer enters the initial state which is obtained after the power is turned on.