HP Web Jetadmin Software Uživatelský manuál stáhnout pdf (Strana 7)

service running on the HP Web Jetadmin

server, which acts as an interface

between the HP Web Jetadmin and

HP WS Pro Proxy services.

If it is determined that HP SNMP Proxy

Agent is installed, additional standard

printer and enterprise PML OIDs are

queried to determine if a supported

device is connected. The proxy filters

these OIDs and redirects them to the

device over the USB or LPT cable. Other

OIDs, such as Host Resources objects, are

passed through to the SNMP service so

that the workstation can provide

responses pertaining to itself. This is

imperative for using enterprise

management solutions to manage client

machines. When queries are passed to

the device, in most cases the device

model name, engine page count, toner

levels, serial number, and more are

available.

If it is determined that neither proxy is

installed or if no device can be found on

machines where a proxy is installed, HP Web Jetadmin then attempts to locate devices using WMI if

the WMI Credentials checkbox is selected (Figure 2). The credentials entered must be a member of the

administrator’s group on any workstation for HP Web Jetadmin to perform WMI calls to discover PC-

connected devices.

Printers discovered using either proxy agent are displayed in the All Devices list with PC Port in the

Port column (Figure 3). Devices discovered using WMI are displayed in the All Devices list with LPTx

or USBxxx in the Port column. Multiple devices attached to a single workstation can be discovered.

Each of the multiplexed devices on a PC have the same IP address, but have different HP Jetdirect port

numbers—similar to the behavior of a multiport HP Jetdirect EX print server.

Note There are a handful of devices that by both HP SNMP Proxy Agent and HP WS Pro Proxy

Agent can discover. If the latest versions of both proxies are installed and both proxies

discover one of these devices, the device appears in the device lists only once as being

discovered by HP WS Pro Proxy Agent. If older versions of the proxies are installed and both

proxies discover one of these devices, the device appears in the device lists twice. The

difference is noted by the type of information that is displayed by each proxy. For more

information, see “Proxy comparison” on page 2.

DEVICE MANAGEMENT

The proxies can provide the following types of functionality for discovered devices:

• Display device information, such as status, supplies levels, and page counts

• Configure specific features

• Monitor device alerts

• Generate reports

Figure 3

—Devices discovered by HP SNMP Proxy Agent

Figure 4

—Status tab

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