Printer Not Found

Diagnose in layers

1. Device: power, paper, error lights, cable, network link, or Bluetooth pairing.
2. Operating system: printer/queue exists, is enabled, and can print a test page.
3. Driver and spooler: correct driver installed; queue and spooler are healthy.
4. Runtime: process has permission and returns the printer during discovery.
5. Application: stored ID, workstation assignment, and media profile still match.

For a network printer, confirm its address or DNS name and reachability. For USB, reconnect directly without an unpowered hub and check whether the OS created a second queue. For Bluetooth, verify the intended profile and current pairing.

Correct fixes

• Refresh discovery after the operating system recognizes the device.
• Rebind a missing printer through an authorized setup screen.
• Store a runtime-provided stable identifier plus human-readable name and workstation.
• Require confirmation before automatically substituting another printer.

Portix evidence needed

Printer enumeration, identifiers, refresh events, permission errors, supported transports, and replacement behavior aren’t documented yet.

Verify

Restart the printer and workstation, reconnect it, and confirm the same logical assignment is restored without routing to a similarly named device.