HP LaserJet 8150 Series Printers - Software Technical Reference

Printer features
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Downloading the new firmware from the HP Web site
The .RFU file and an associated readme file are packaged together as a self-extracting
.EXE file of approximately 4 MB in size. See the http://www.hp.com Web site for detailed
instructions on how to download the .EXE file.
Downloading the new firmware to the printer
You can send an .RFU upgrade to a printer at any time; the printer will wait for all I/O
channels to become idle before cycling power.
NOTE: If the firmware upgrade involves a change in the format
of NVRAM, the NVRAM settings will be lost and must be
set again by the customer.
The elapsed time for an upgrade depends on the I/O transfer time as well as the time that
it takes for the printer to reinitialize. The I/O transfer time will depend on a number of
things including the speed of the host computer sending the upgrade, the I/O method
(FIR, parallel, or network). The re-initialization time will depend on the specific hardware
configuration of the printer, such as the number of EIO devices installed, the presence of
External paper handling devices, and the amount of memory installed. Finally, any print
jobs ahead of the .RFU job in the queue will be printed before the .RFU upgrade is
processed.
NOTE: The printer will automatically reboot after processing the
upgrade.
For Windows systems: If the printer is shared on the network, then the following
command can be issued from a command prompt:
copy /b c:/temp/mb785..RFU \\jsmith-nt\lj8150
where c:/temp/mb785..RFU is the name of the .RFU file, jsmith-nt is the machine name,
and lj8150 is the printer's share name.
If the printer is attached locally, then the .RFU file can be sent directly to the printer with a
COPY command from a command prompt or DOS window:
copy /b c:/temp/mb785..RFU lpt1:
where c:/temp/mb785..RFU is the name of the .RFU file and lpt1: is the appropriate port
name.
You can also send the file via a Fast Infrared (FIR) port.