HP 49 Error (LaserJet): Firmware Fault & Fix

The 49 error (often shown as 49.XXXX) on HP LaserJet and PageWide printers is a firmware error, not a mechanical fault. HP’s official guidance is that it’s typically triggered by a corrupt print job, a connectivity glitch, or outdated firmware, and that a power cycle plus a firmware update resolves most cases.

• A "49" or "49.XXXX" error shows on the control panel and the printer stops
• It often appears when printing a specific file or from one application
• The panel may prompt you to turn the printer off and on
• It can recur every week or so if the firmware is outdated

1. 1

   Power-cycle the printer (HP’s first step)

   5 minutes

   1. Turn the printer off using the power switch. 2. Wait about 30 seconds, then turn it back on. 3. Try printing again — an intermittent 49 error usually clears.

2. 2

   Update the printer firmware

   15 minutes

   1. Download the latest firmware for your exact model from HP’s official support site. 2. Install it following HP’s instructions. 3. HP fixes known 49 triggers in firmware, so this resolves most persistent cases.

3. 3

   Isolate what triggers it

   1. Note whether the error only happens with one file, app, or connection type. 2. Disconnect the network/USB cables and disable wireless to test. 3. Reprint the job or try a different file to find the culprit. 4. If it happens across all jobs and connections, contact HP — the printer may need service.

• HP Customer Support — official 49-error documentation (support.hp.com)