HP Web Jetadmin - Managing Third-Party Printers

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RESERVED FUNCTIONALITY
While a majority of functionality in HP Web Jetadmin is provided by using SNMP queries, some
functionality is reserved for HP devices only, as the functionality requires techniques beyond querying
SNMP objects. The basic and advanced support provided for non-HP devices is restricted to the
usage of industry-standard or vendor-specific SNMP queries to gather information. Functionality that is
reserved for HP devices due to non-SNMP techniques to provide it includes:
• Firmware upgrades
• Print queue creation
• Some extended configuration items
• Print Test Page button
• Secure disk erase
• Font and forms management
FUNCTIONALITY DEFINITIONS
The following section provides definitions for many of the supported features for third-party devices
and the objects used for obtaining the information. The feature is supported if the device can answer
the industry-standard query defined in these definitions.
Bitmap and Icon
HP Web Jetadmin displays any predefined bitmaps and icons that have been created in a device
plug-in. HP devices have a unique matching picture, while third-party support provides one generic
picture per third-party vendor.
Model
The printer model name appears according to the response to hrDeviceDescr.
Status
Device status, indicating the current state of the printer (for example: Online, Paper jam) is displayed
based on responses to standard objects such as hrPrinterDetectedErrorState.
Control Panel Display
The current message on the printer front panel is displayed using prtConsoleDisplayBufferText.
Serial Number
The Serial Number is a unique manufacturing identifier for the printer. The serial number is a critical
identifier item for HP Web Jetadmin that is used to determine the uniqueness of a device along with
other items such as MAC Address and IP Address. Some functionality, such as Reports, is blocked in
HP Web Jetadmin if the serial number cannot be obtained. Therefore, HP Web Jetadmin makes
strong efforts to obtain the serial number from third-party devices. The most typical and widely
supported object for obtaining serial number is prtGeneralSerialNumber.
Engine Cycle Count
Engine Cycle Count is a value stored on the printer that represents a cumulative total of pages printed
for the life of the printer. Engine Cycle Count is displayed if a printer supports prtMarkerLifeCount.
Page counts for monochrome, color, simplex, duplex, fax, copy, and scan are only obtainable via
proprietary queries and only supplied for HP devices.
IP Hostname
IP Hostname is displayed as long as the operating system can resolve an IP address to a hostname
from a name server such as DNS or WINS using a GetHostByAddr call. System Name, which can be