Chapter 3 Using the Operator Panel3-192.2.4 Changing the Interface ParametersThe printer is equipped with both a parallel and serial inter-face or a network interface. Various printing environmentparameters such as the default emulation can be changed in-dependently on different interfaces by using the printer’smenu selection system. Select the interface to apply thechanges in the procedure described below.This interface selection described below does not selectwhich interface data will be received from. The printer auto-matically selects an interface.Changing Parallel Interface ModesThe parallel interface supports a bi–directional/high–speedmode according to IEEE standards. Normally, this interfaceis used under the default setting Auto. For details, seeAppendix B Host Computer Interface. After setting the inter-face, be sure to reset the printer or turn the power off at leastonce. The new setting will be enabled thereafter.Press the MENU key.Press the U or V key repeatedly until Interface >appears. One of the interface names shown belowappears, indicating the current interface.Parallel (default)USBNetworkOption (only when an optional network interfacecard is installed)Serial (only when an optional serial interface boardis installed)Press the ENTER key. A blinking question mark (?)appears.If Parallel is not displayed, press the U or V keyrepeatedly until Parallel appears.Press the ENTER key again.Press the Z key. The message display changes to thecommunication mode menu.Press the ENTER key. A blinking question mark (?)appears.Press the U or V key to display the desired mode.The display changes as shown below. Press theENTER key.AUTO (default)NormalHigh speedNibble (high)Press the MENU key. The message display returns toReady.Changing Serial Interface ModesYou can set the baud rate, data bits, stop bits, parity, and pro-tocol for the serial interface.This section applies to the printer having the optional serialinterface board kit (IB-11) installed.Press the MENU key.Press the U or V key repeatedly until Interface >appears. One of the interface names shown belowappears, indicating the current interface.Parallel (default)USBNetworkOption (only when an optional network interfacecard is installed)Serial (only when an optional serial interface boardis installed)Press the ENTER key. A blinking question mark (?)appears.Press the U or V key repeatedly until Serial ap-pears.Press the ENTER key again.NOTEInterface >?Parallel>Parallel I/F?Nibble (high)123456NOTEInterface?ParallelInterface?Serial7812345