49.38.07PageWide Enterprise 780dn

HP PageWide Enterprise 780dn 49.38.07 error: Solution

The HP PageWide Enterprise 780dn 49.38.07 error is a fault occurring during print job management, usually due to data packets misinterpreted by the print system. This error does not imply mechanical damage; it is a communication conflict that freezes the print queue. It is resolved by clearing pending files and resetting the network connection.

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Common causes

  • 1Corrupted print job (unsupported file format).
  • 2Network conflicts due to repeated or malformed data packets.
  • 3Buffer overflow (memory full) from very large documents.
  • 4Outdated print drivers on the print server.

Solutions

Diagnóstico rápido

The 49.38.07 error appears on screen while the printer is trying to process a file. If it occurs right when sending a specific document from design software or PDF viewers, it is highly likely the file has incompatible formatting.

Solución paso a paso

  1. Queue management: Cancel all pending jobs from the user interface on Windows/macOS.
  2. Disconnect: Turn off the printer and unplug the network cable for 30 seconds.
  3. Network clear: Reconnect the network cable and power on the device without sending new jobs immediately.
  4. Test print: Send a simple test page to verify that the communication conflict has dissipated.

Prevención y mantenimiento

Avoid sending mass print jobs from unstable applications. Keep the device firmware updated to improve interpretation of complex PDF or PostScript files.

Cuándo llamar a un técnico

If the error appears without any print jobs being sent, or even with no network cables attached, the network card or memory module might be defective.

Ficha técnica del equipo

  • Technology: PageWide
  • Speed: 70 ppm
  • Connectivity: USB, Ethernet
  • Capacity: 4650 sheets
  • Compatible supplies: HP 991 Series
  • Recommended use: Corporate environments
  • Official drivers / firmware

Steps to follow

  1. 1

    Cancel jobs

    Access the print queue from your computer and clear all pending documents.

  2. 2

    Network reset

    Disconnect the Ethernet cable and restart the printer to rule out network collisions.

  3. 3

    Clear memory

    If the error persists, perform a memory clear from the printer's service menu.

Frequently asked questions

This is a system interruption caused by a corrupted print job or a conflict in the network stack when receiving data.

It is not a hardware failure, but it stops the unit from accepting new jobs. The queue must be cleared to resume normal activity.

It uses HP 991 series cartridges, designed for high-speed PageWide inkjet technology.

Periodic cleaning of paper trays and firmware updates to ensure compatibility with modern network protocols.

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