HP 2420 - Manual (Page 79)

6 Locate the .RFU file on your hard disk, and click the file name to highlight it. Click Select. The
Files dialog boxes update to show the .RFU file under File to download.
7 Click Download. The HP LaserJet Utility starts downloading the file to the product. A progress
bar shows how much of the file has been downloaded. While the file is downloading, the
RECEIVING UPGRADE message appears on the control-panel display on the product. After the
file has downloaded to the product, the PERFORMING UPGRADE message appears on the
control-panel display.
NOTE The product automatically restarts the firmware to activate the update. At the end
of the update process, the READY message appears on the control panel.
Remote firmware update by using the LPR command
NOTE This remote firmware update method is for use in Windows NT 4.0, Windows 2000,
Windows XP, and Windows Server 2003.
Complete the following steps to update the firmware by using the LPR command.
1 From a command window, type lpr -P <IPADDRESS> -S <IPADDRESS> -o l <FILENAME> -
OR- lpr -S <IPADDRESS> -Pbinps <FILENAME>, where <IPADDRESS> can be either the
TCP/IP address or the hostname of the product, and where <FILENAME> is the filename of
the .RFU file.
NOTE The parameter (-o l) consists of a lowercase "O", not a zero, and a lowercase "L",
not the numeral 1. This parameter sets the transport protocol to binary mode.
2 Press Enter on the keyboard. The messages described in the section Printer messages during
the firmware update appear on the control panel.
NOTE The product automatically restarts the firmware to activate the update. At the end
of the update process, the READY message appears on the control panel.
3 Type exit at the command prompt to close the command window.
Remote firmware update through HP Web Jetadmin
This procedure requires that you install HP Web Jetadmin V7.8 or later on your computer. Complete
the following steps to update a single product through HP Web Jetadmin after downloading the .RFU
file from the HP Web site.
1 Start HP Web Jetadmin.
2 Type the TCP/IP address or IP host name of the product in the Quick Device Find field, and
then click Go. The product Status window opens.
3 Open the Device Management folder in the drop-down list in the Navigation panel. Navigate to
the Device Lists folder.
4 Expand the Device Lists folder and select All Devices. Locate the product that you want to
update in the list of products, and click to select it.
5 Locate the drop-down box for Device Tools in the upper-right corner of the window. Select
Update Printer Firmware from the choose action list.
Technology background information 63
Software description