31.02mb2650ade

Lexmark MB2650ade 31.02 Error: ADF Jam Guide

The Lexmark MB2650ade error 31.02 occurs when the Automatic Document Feeder (ADF) detects a jam during the scanning process. This error is common when original documents contain clips, staples, or creases. Cleaning the paper path and feed rollers will usually correct the issue immediately.

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Common causes

  • 1Staples/Clips: Metal objects blocking the document path.
  • 2Dirty rollers: Dust buildup reducing feeding reliability.
  • 3Blocked sensors: Small debris covering the sensor area.
  • 4Damaged originals: Torn or crumpled sheets easily snagging.

Solutions

Quick Diagnosis

The 31.02 code is specific to the ADF. If it triggers without active scanning, check for small bits of paper, receipts, or post-its lodged in the input rollers or covering the document presence sensor.

Step-by-Step Solution

  1. Lift the ADF top cover.
  2. Gently remove any original documents partially stuck in the unit.
  3. Inspect the rollers for buildup, dust, or sticky adhesive residue.
  4. Clean the detection sensors carefully with a dry swab.

Prevention and Maintenance

Always check that your originals are in good condition. Documents with tape corrections or heavy creases frequently cause jams. Keep rollers clean to maintain grip.

When to Call a Technician

If the ADF continues to display 31.02 after a thorough cleaning of the rollers, the document sensor itself may be malfunctioning.

Device Technical Specifications

  • Technology: Scanner with duplex ADF
  • ADF Capacity: 50 sheets
  • Connectivity: USB, Gigabit LAN
  • Consumables: N/A (Feeder roller maintenance)
  • Recommended Use: Intensive document digitization
  • Drivers / official firmware

Steps to follow

  1. 1

    ADF Inspection

    Open the top ADF cover to look for torn paper fragments.

  2. 2

    Roller Cleaning

    Gently clean the feed rollers with a lightly dampened cloth.

  3. 3

    Sensor Check

    Ensure no small scraps of paper are blocking the optical sensor of the ADF.

Frequently asked questions

The 31.02 code indicates a jam or feeding failure in the ADF (Automatic Document Feeder).

Ensure documents are free of staples, clips, or adhesive tape before placing them in the feeder.

Yes, most ADF jams are visible once the top cover is lifted.

Quarterly cleaning will significantly extend the life of the feeder mechanism.