400-10CX931dse

Lexmark CX931dse error 400-10: How to Fix

The Lexmark CX931dse error 400-10 indicates a failure in the paper feeding mechanism. This message suggests that the printer cannot successfully pull paper from the tray, often due to sensor obstructions or traction loss. Following these troubleshooting steps will help you resolve the issue efficiently.

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Common causes

  • 1Misaligned paper stack in the tray.
  • 2Accumulation of paper dust on rollers.
  • 3Debris blocking the paper path sensor.
  • 4Degraded rubber pickup tires.

Solutions

Quick Diagnosis

If you see the 400-10 code, verify that the paper stack is not too thick and that the side guides are snug against the paper edge. Misalignment is the most common cause of this feed error.

Step-by-Step Fix

  1. Check Trays: Remove the paper tray completely to check for debris inside the intake area.
  2. Rollers: Clean the rubber pickup rollers to ensure they provide sufficient grip.
  3. Sensors: Check for small pieces of paper or debris blocking the internal optical sensor.
  4. Reload: Place paper properly, ensuring it is flat and within the recommended load limit.

Prevention and Maintenance

Keep your paper storage dry to avoid humidity-related jams. Quarterly cleaning of rollers keeps traction at optimal levels.

When to Call a Technician

If the printer consistently fails to pick up paper even after cleaning the rollers, the pickup clutch or sensor array may need a professional replacement.

Equipment Technical Data

  • Technology: Color Laser Printer
  • Paper Handling: Max 4,000 sheet capacity
  • Maintenance: Standard roller kit
  • Consumable compatible: 93x toner series
  • Usage: Corporate standard
  • Official Drivers / Firmware

Steps to follow

  1. 1

    Check trays

    Pull out paper trays and inspect for misaligned sheets.

  2. 2

    Clean rollers

    Wipe the feed rollers with a soft, lint-free cloth.

  3. 3

    Reset

    Reload paper correctly and restart the device.

Frequently asked questions

The error 400-10 indicates a problem with the paper feed mechanism or sensors.

Usually, it is a minor issue caused by paper alignment or dirty rollers.

The device handles standard 60-90gsm bond paper.

Clean them once a quarter to maintain proper traction.