Chapter 1 Using the Operator Panel1-43The printer is equipped with both a parallel and USB inter-faces. Option serial interface board kit and network interfacecard can also be installed. Various printing environment pa-rameters such as the default emulation can be changed inde-pendently on different interfaces by using the printer’s menuselection system. Select the interface to apply the changes inthe procedure described below.This interface selection described below does not select whichinterface data will be received from. The printer automaticallyselects an interface data to be received.The parallel interface mode of this printer supports a bi-direc-tional/high-speed mode. Normally, this interface is used un-der the default setting Auto. For details, seeAppendix C HostComputer Interface. After setting the interface, be sure to re-set the printer or turn the power off at least once. The newsetting will be enabled thereafter.Press the MENU key.Press the or key repeatedly until Interface> appears. One of the interface names shown belowappears, indicating the current interface.Parallel (default)USBSerial (when a serial interface board kit isinstalled)Option (only when an optional network interfacecard is installed)Press the ENTER key. A blinking question mark (?)appears.If Parallel is not displayed, press the or keyrepeatedly until Parallel appears.Press the ENTER key again.Press the key. The message display changes tothe communication mode menu.Press the ENTER key. A blinking question mark (?)appears.Press the or key to display the desired mode.The display changes as shown below. Press the EN-TER key.Auto (default)NormalHigh speedNibble (high)Press the MENU key. The message display returns toReady.Changing Serial Interface ParametersThis section applies to the printers having the option seri-al interface board kit (IB-11) installed.The baud rate, data bits, stop bits, parity, and protocol for theserial interface can be set as follows:Press the MENU key.Press the or key repeatedly until Interface> appears. One of the interface names shown belowappears, indicating the current interface.Parallel (default)USBSerial (when a serial interface board kit is installed)Option (when a network interface card is installed)Press the ENTER key. A blinking question mark (?)appears.If you want to abandon the interface selectionprocedure, press the CANCEL key. The interfaceremains unchanged.Press the or key repeatedly until Serial ap-pears.Press the ENTER key again.Press the key. Each time the or key ispressed, the setting item and current setting changeas shown below.InterfaceNOTEChanging Parallel Interface ModesInterface >? Parallel>Parallel I/F? Auto123456NOTEInterface? ParallelInterface? Serial78123456