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Lexmark error code 55.1

Quick answer

"Error reading USB drive. Remove USB." The printer cannot read the USB flash drive plugged into its front port. The companion code 55.2 is the same fault for a USB hub, which Lexmark asks you to remove. Neither affects normal network or cable printing.

Before you try the solution

  1. 1. Copy the complete message exactly as shown, including any letters, spaces, or punctuation around 55.1.
  2. 2. Find the printer's exact model number. The same-looking code can mean something different on another model family.
  3. 3. Let the current print, scan, or update operation stop before touching controls, paper paths, or covers.

Manufacturer-documented solution

"Error reading USB drive. Remove USB." The printer cannot read the USB flash drive plugged into its front port. The companion code 55.2 is the same fault for a USB hub, which Lexmark asks you to remove. Neither affects normal network or cable printing.

Model scope: the printer error codes table in your own model's Lexmark User's Guide

If the error is still there

  1. 1Return to the screen or job that produced the message and check whether the code has cleared.
  2. 2If 55.1 returns, do not repeat a risky procedure. Record when it appears and check the documentation for the exact model.
  3. 3If the documented action does not clear 55.1, contact Lexmark support or a qualified printer technician with the model number and complete message.

Other Lexmark error codes

All Lexmark error codes

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Manufacturer reference

The meaning and documented action above were taken from the manufacturer source below.

Printer error codes — Lexmark CS73x User's Guide

Verified against manufacturer documentation, last checked 2026-08-15. PrintDiag has no printers and no technician, so nothing here is claimed as tested on hardware.