LJ5550-MIB

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsLJ5550-MIB

Organization: Hewlett-Packard Company

Last Updated: 2004-02-18

Category: Printer and Finishing, Vendor: HP/HPE

Description: Hewlett-Packard LaserJet 5550 color laser printer SNMP MIB for managing color toner cartridges, media trays, and device alarms.

Start monitoring vendor-neutral, standards-based MIB, any SNMPv3-capable network device (SNMP engine identity/boot/clock status) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

What Is LJ5550-MIB?

LJ5550-MIB is a Hewlett-Packard vendor-specific SNMP module for the HP LaserJet 5550 color laser printer, a workgroup-class device, exposing HP's proprietary PML-derived diagnostic, localization, control-panel, and power-management objects alongside background status message reporting. It includes self-test and diagnostic triggers (self-test, print-internal-page, perm-store-init-occurred), background status message line objects, control panel interaction counters (button press, display contents change counter/CRC/graphical contents), and power-state objects (energy-star, sleep-mode). Its background-status-msg-line objects make it particularly useful for monitoring hardware and software status: they surface the actual text the printer's control panel is displaying (e.g., a specific error or supply alert), which combined with self-test and control-panel activity data lets an admin diagnose a fault without physically visiting the device. Objects registered under netPMLmgmt indicate this module depends on HP's proprietary PML management framework, used alongside the standard Printer-MIB for baseline print status. It is typically deployed in office/workgroup environments where the LaserJet 5550's color printing and media handling are monitored centrally through HP Web Jetadmin or similar fleet management tools. Engineers can download the LJ5550-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in LJ5550-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

  • HP LaserJet 5550 color laser printer

Monitoring Examples

An administrator polls background-status-msg-line1-part1 and background-status-msg-line2-part1 to retrieve the literal text currently shown on the printer's control panel, immediately revealing conditions like a toner-low or paper-jam message without a site visit. control-panel-display-contents-change-counter/crc confirm whether that message is new or has been sitting unacknowledged. self-test and print-internal-page can be triggered remotely to verify the color print engine is functioning after a reported print quality issue. sleep-mode and energy-star are checked to confirm the printer's power state during off-hours polling.

What Can Be Monitored

  • control panel status message text
  • control panel display change activity
  • self-test/diagnostic status
  • sleep/power-save mode
  • energy-star compliance state
OIDs

RFC description

MIB for HP LaserJet 5550 printer network management via JetDirect print server.

Start monitoring HP LaserJet 5550 color laser printer with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download LJ5550-MIB