Chapter 2 45System DevicesThe System Devices screen contains parameters involving your hardware devices. It also provides advancedsettings of the system.The table below describes the parameters in the screen. Settings in boldface are the default and suggestedparameter settings.Parameter Description OptionsInternal TouchPad Determines whether or not to disable the internaltouchpad of a PS/2 pointing device is connected.Both or AutoInfrared Port (FIR) Sets the interrupt request of the serial port. Pleaseset the parameter to “Enabled” if you need to useFIR under Windows operation system.Disabled/ Enabled/ AutoBase I/O address/IRQ Sets the I/O address of the Infrared port. 3F8h/IRQ4; 2F8h/IRQ3; 2E8h/IRQ3DMA Sets a DMA channel for the printer to operate indisabled mode.DMA1/ DMA3Parallel Port Enables, disables or auto detects the parallel port. Enabled/Disabled/AutoMode Sets the operation mode of the parallel port. ECP, EPP, Normal or Bi-directionalBase I/O address/ Sets the I/O address of the parallel port. Thisparameter is enabled only if Mode is set to ECP orBi-directional.378h, 278h or 3BChInterrupt Sets the interrupt request of the parallel port. IRQ 7 or IRQ5DMA Channel Sets a DMA channel for the printer to operate inECP mode. This parameter is enabled only if Modeis set to ECP.DMA3 or DMA1
