Menu item DescriptionPS SmartSwitchOnOffSets the printer to automatically switch to PS emulation when a print job receivedthrough a serial port requires it, regardless of the default printer languageNotes:• On is the factory default setting.• When the Off setting is used, the printer does not examine incoming data.• When the Off setting is used, the printer uses PCL emulation if PCL SmartSwitchis set to On. It uses the default printer language specified in the Setup menu ifPCL SmartSwitch is set to Off.NPA ModeOnOffAutoSets the printer to perform the special processing required for bidirectionalcommunication following the conventions defined by the NPA protocolNotes:• Auto is the factory default setting.• When the On setting is used, the printer performs NPA processing. If the datais not in NPA format, it is rejected as bad data.• When the Off setting is used, the printer does not perform NPA processing.• When the Auto setting is used, the printer examines data, determines theformat, and then processes it appropriately.• Changing this setting from the printer control panel and then exiting the menuscauses the printer to restart. The menu selection is updated.Serial BufferDisabledAuto3K to Sets the size of the serial input bufferNotes:• Auto is the factory default setting.• The Disabled setting turns off job buffering. Any jobs already buffered on thedisk are printed before normal processing is resumed.• The serial buffer size setting can be changed in 1-K increments.• The maximum size allowed depends on the amount of memory in the printer,the size of the other link buffers, and whether Resource Save is set to On or Off.• To increase the maximum size range for the Serial Buffer, disable or reduce thesize of the parallel, USB, and network buffers.• Changing this setting from the printer control panel and then exiting the menuscauses the printer to restart. The menu selection is updated.Serial ProtocolDTRDTR/DSRXON/XOFFXON/XOFF/DTRXON/XOFF/DTRDSRSelects the hardware and software handshaking settings for the serial portNotes:• DTR is the factory default setting.• DTR/DSR is a hardware handshaking setting.• XON/XOFF is a software handshaking setting.• XON/XOFF/DTR and XON/XOFF/DTR/DSR are combined hardware andsoftware handshaking settings.Understanding printer menus175
