Table 6-2 Troubleshooting a firmware update
Cause Result
The job was cancelled from the control panel. No update has occurred.
A break in the I/O stream occurred during send (for example,
the network cable was removed).
No update has occurred.
A power cycle occurred during the RECEIVING UPGRADE
process.
No update has occurred.
A power cycle occurred during the PERFORMING
UPGRADE process.
No update has occurred. Resend the update through a USB
port.
A power cycle occurred during the INITIALIZING process. The update has been completed.
Print jobs that are sent to the product while a firmware update is in process do not interrupt the update.
All HP LaserJet products leave the factory with the most recent firmware version installed. If a remote
firmware update fails for the component, the .RFU file must be resent. The only component exception
is the formatter. See the following table for information regarding a formatter update error.
NOTE: Because a firmware update cannot be resent over a USB connection for Mac, contact an HP
Customer Care Center if a remote update fails in a Macintosh operating system.
The first three messages in the following table appear during a normal firmware update process; others
appear only if the update process does not succeed.
Table 6-3 Update messages
Product message Explanation
RECEIVING UPGRADE This message appears from the time the product recognizes the beginning of
an .RFU update until the time the product has verified the validity and integrity of
the .RFU update.
NOTE: If the remote firmware update process is interrupted before the firmware
is downloaded (while RECEIVING UPGRADE appears on the control-panel
display), the firmware file must be sent again. No message appears on the product
control panel to indicate that the firmware update was interrupted.
PERFORMING UPGRADE This message appears while the product is reprogramming the firmware.
NOTE: If power is lost during the flash DIMM update (while PERFORMING
UPGRADE appears on the control-panel display), the update is interrupted and
the message RESEND UPGRADE appears on the control-panel display.
INITIALIZING This message appears from the time the product has finished reprogramming the
flash until the product reinitializes.
RESEND UPGRADE This message appears (in English only) if the firmware update fails because
the .RFU process is interrupted. It can also occur if firmware for accessories (such
as the duplex unit becomes corrupted). Perform another firmware update by any
means that is supported by the product, regardless of the connection (network or
USB).
.RFU LOAD ERROR
SEND .RFU UPGRADE
ON USB PORT
This message appears (in English only) if the firmware update of the formatter
fails because the print-engine firmware is corrupted.
If this message appears, the update must now be sent by a computer that is
attached to the USB port of the product.
270 Chapter 6 Engineering details ENWW
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