31.02MB2236adw

Lexmark MB2236adw error 31.02: Diagnostics

The Lexmark MB2236adw error 31.02 indicates a paper path fault, typically resulting when the paper does not reach the registration sensor within the expected timeframe. This is often linked to roller contamination, paper skew, or hidden debris within the internal mechanism. Simple maintenance steps can usually clear this error quickly.

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Common causes

  • 1Internal debris obstructing paper path.
  • 2Dirty feed rollers reducing traction.
  • 3Poor quality/humid paper causing skew.
  • 4Failing registration sensor.

Solutions

Diagnostic quick guide

If error 31.02 appears, check the paper path for tiny scraps of paper. Often, the sensor is simply blocked by a torn page edge.

Step-by-step solution

  1. Inspect path: Open doors to search for debris.
  2. Clean: Wipe rollers using a microfiber cloth.
  3. Reload: Ensure the tray guides are aligned.

Prevention and maintenance

Store paper in a low-humidity environment to prevent curling. Clean rollers every 5,000 pages.

When to call a technician

If you have cleared all paper and the error remains, the registration sensor is likely faulty and requires expert repair.

Technical specifications

  • Technology: Monochrome Laser
  • Speed: 36 ppm
  • Consumables: B222000 series
  • Connectivity: Wi-Fi, Ethernet
  • Support

Steps to follow

  1. 1

    Check tray

    Remove the paper tray to look for debris.

  2. 2

    Clean rollers

    Wipe the feed rollers with a soft, damp cloth.

  3. 3

    Reset

    Close all trays and cycle power.

Frequently asked questions

Error 31.02 means the paper failed to reach the registration sensor in time.

It is a stopping fault; printing will be disabled until it's cleared.

Use official Lexmark B22 series supplies.

Regular roller cleaning helps prevent this recurring error.