Menu functions > 55BOOT MENUThis menu should only be changed by the System Administrators. In order to gain accessto this menu, follow the instructions in “How to change the settings - administrator” onpage 43.This menu is in ENGLISH only (default settings in bold type).Parallel SetupThis menu controls the operation of the printer’s Parallel data interface.USB SetupThis menu controls the operation of the printer’s USB data interface.When you have changed any settings in the USB menu, turn the printer OFF, then ONagain.ITEM SETTINGS EXPLANATIONEnter Password xxxxxxxxxxxx Enter a password to access the Boot menu.Password should be from 6 to 12 digits of alpha/numericcharacters (or mix)The default value is “aaaaaa”Parallel Enable / Disable Enables or disables the parallel port.Bi-Direction Enable / Disable ENABLE/DISABLE the bi-directional capability of theparallel interface.ECP Enable / Disable Extended Capabilities Port, enables/disables thisfunction.Ack WidthNarrow/Medium/WideSets ACK width for compatible reception.= 0.5μs= 1.0μs= 3.0μsAck / Busy Timing Ack in Busy /Ack while BusyACK IN BUSY: BUSY=LOW-> The end of ACK pulse.ACK WHILE BUSY: BUSY=LOW -> The centre of ACKpulse.I-Prime 3μsec/50μsecDisable3 microseconds: Enabled with the 3μs nInit signal.50 microseconds: Enabled with the 50μs nInit signal.Offline Receive Enable / Disable To Enable/disable of this function. When set to Enable,the interface retains a receive possible state even whenswitching to Offline. Interface sends the BUSY signal onlywhen the receive buffer is full or a service call occurs.ITEM SETTINGS EXPLANATIONUSB Enable / Disable ENABLES / DISABLES the USB port.Speed 480 / 12 Mbps Selects the interface speed. After setting change themenu, the printer restarts on exit.Soft Reset Enable / Disable Enables or disables the SOFT RESET command.Offline Receive Enable / Disable OFFLINE RECEIVE.Serial Number Enable / Disable Specifies whether to ENABLE or DISABLE a USB serialnumber.The USB serial number is used to identify the USB deviceconnected to your PC.