Introduction

Microsoft has finally addressed a frustrating USB printer bug affecting Windows 10 and Windows 11 users. The issue, which surfaced after January 2025 updates, caused USB-connected dual-mode printers to unexpectedly print garbled text and network protocol commands—interrupting essential print tasks and wasting ink.

Background and Problem Description

The bug specifically impacted USB printers that support both traditional USB Print and IPP Over USB protocols. These "dual-mode" printers began printing strings starting with headers like "POST /ipp/print HTTP/1.1" alongside random characters, which are actually network protocol messages rather than document content. This issue typically occurred when printers were powered on or reconnected after being idle.

This anomaly was introduced inadvertently with updates starting in late January 2025, such as Windows 11 update KB5050092. The problem stems from misinterpretation in the printer drivers where IPP (Internet Printing Protocol) data meant for communication was rerouted as printable output.

For many businesses and individual users, this rendered printers unreliable and created unnecessary operational disruptions.

Details of the Fix

Microsoft responded with dedicated patches included in the March 2025 non-security preview updates:

  • Windows 10 (version 22H2): Update KB5053643
  • Windows 11 (versions 22H2 and 23H2): Update KB5053657 (optional preview, broadly rolling out in April 2025)

These updates:

  • Correct the handling of USB protocol communications to prevent unintended printing of network commands.
  • Specifically ensure that IPP-related messages are no longer sent to the printer in a print-ready format.
  • Reverse the flawed behavior resulting from January's problematic updates.

Users running Windows 11 24H2 are slated to receive a similar fix scheduled for March 27, 2025.

Technical Insight

This bug highlights the complexity in managing legacy hardware interfaces like USB alongside evolving standards such as IPP Over USB, which treats USB printers more like networked devices. The print spooler misrouted network protocol headers as document data, leading to printers printing raw IPP request headers and binary data.

Prior to the update, enterprise users had to rely on Known Issue Rollback (KIR) and Group Policy configurations to temporarily mitigate the issue, but these were workarounds rather than permanent solutions.

Broader Implications and Impact

This episode underscores the delicate balance Microsoft must maintain between rolling out frequent updates to enhance security and features, and ensuring stability across a vast array of hardware and protocols.

The prolonged presence of this USB printing problem raised concerns around update testing rigor, especially given the critical nature of printing in office and home environments.

IT administrators are reminded of the importance of thorough testing, controlled rollouts, and close monitoring for new issues post-update. While workarounds like KIR offer temporary relief, timely application of official patches is the best path to resolution.

Conclusion

With the rollout of KB5053643 and KB5053657, Windows 10 and Windows 11 users can expect reliable USB-connected dual-mode printer functionality restored. This fix resolves the baffling printouts of network protocol data and reinstates normal printing workflows, safeguarding productivity and reducing waste.

Users are encouraged to check Windows Update settings and install the latest patches promptly. For enterprise environments, coordination with IT teams to apply these updates system-wide will ensure consistent printer behavior across networks.

How to update

  1. For Windows 10 (22H2), ensure KB5053643 is installed.
  2. For Windows 11 22H2 and 23H2, manually check for the optional preview update KB5053657.
  3. Windows 11 24H2 users should watch for updates arriving in late March 2025.
  4. Restart systems after installing updates to apply changes.

Additional Notes

While USB printing issues have been resolved, Microsoft continues to address other update-related bugs, including challenges with Remote Desktop and certain third-party software integration.

For IT professionals, regular update management and monitoring remain essential to maintaining stable Windows environments amid ongoing development and feature rollouts.