HP Web Jetadmin Software Manuale Utente Scaricare il pdf (Pagina 10)

WARNING! Be aware that downgrading firmware has the potential to cause serious consequences on

devices. This action should be considered carefully. Test all firmware images thoroughly

before running HP Web Jetadmin firmware updates on production devices.

Note After enabling the firmware downgrade functionality in HP Web Jetadmin, the Printer

Firmware - Available and Jetdirect Firmware - Available columns list the total number of

available device and Jetdirect firmware versions that are available for a device instead of

only the current and newer firmware versions.

1. Use a text editor to edit the existing file on the HP Web Jetadmin host system in the following

location:

C:\Windows\ServiceProfiles\NetworkService\AppData\Local\HP Inc\HPWebJetadmin\

WjaService\config\FirmwareUpgrade.config.xml

2. For AllowJetdirectFirmwareDowngrades and AllowPrinterFirmwareDowngrades,

change the values from false to true:

<ipmc:configuration

xmlns:ipmc="www.hp.com/schemas/imaging/ipmc/config/2004/02/24">

<type>HP.Imaging.Wjp.Sdk.Core.Framework.ConfigurationItemString

</type>

</property>

<type>HP.Imaging.Wjp.Sdk.Core.Framework.ConfigurationItemString

</type>

</property>

</ipmc:configuration>

3. Either device firmware or HP Jetdirect firmware downgrades can be enabled or disabled by

toggling the <true>/<false> values in the XML file.

4. Save the file and restart the HP Web Jetadmin service (HPWJA Service). Notify all users logged

into the system about the service restart and ensure that active HP Web Jetadmin tasks are

stopped or rescheduled to avoid problems with the restart.

Note Use the standard XML format when creating this file. Use a simple text editor, such as

Microsoft

Notepad. Line breaks should only occur after the appropriate tag at the end of a

statement. Documentation viewers might add what appear to be line breaks in the XML

content shown above.

INCREASE THE PERFORMANCE

Firmware upgrade attempts on devices, either manual or scheduled, can be set to occur again

automatically at a future time for those devices that fail. This eliminates the need to reselect all the

devices that failed and manually retry the upgrades. The number of retries can be set as well as the

frequency of the retries by going to Tools > Options > Device Management > Firmware > General

(Figure 15).

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HP Web Jetadmin Software Manuale Utente Pagina 10