31.01B2865dw

Lexmark B2865dw 31.01 error: Tray paper jam fix

The Lexmark B2865dw 31.01 error is a standard paper jam notification located in the input tray. This occurs when the paper path sensor fails to confirm sheet arrival on time. Often, this is caused by hidden paper bits or poor tray alignment.

1 views

Common causes

  • 1Low-quality paper: Excessive cellulose dust.
  • 2Ambient humidity: Paper sticks to the base tray.
  • 3Misaligned guides: Forcing paper to feed at an angle.
  • 4Worn rollers: Lack of traction leads to slipping.

Solutions

Diagnostic

The 31.01 error is usually accompanied by friction sounds or a persistent message after tray removal. Check for small paper scraps in the input guides; this is the source of 90% of cases. Why does my Lexmark B2865dw show 31.01 error? Typically caused by paper moisture.

Step-by-step solution

  1. Remove paper: Take out the main tray and fan the sheets.
  2. Visual inspection: Check the pickup roller area with a flashlight.
  3. Manual cleaning: Clear toner residue or paper dust with compressed air.
  4. Alignment: Ensure side guides match paper size without squeezing the stack.

Maintenance and Prevention

Store paper in a dry environment. Clean feed rollers with a cloth slightly dampened with distilled water every 3 months. Use standard quality paper to avoid cellulose residue.

When to call a technician

If the rollers do not rotate or the error persists with no paper in the tray, the sensor actuator may be broken or misaligned, requiring professional help.

Equipment data sheet

  • Technology: Monochrome Laser
  • Speed: 65 ppm
  • Connectivity: Ethernet / USB
  • Feeding capacity: 550-sheet tray
  • Compatible supplies: 58D0X00 cartridge series
  • Recommended use: Heavy workloads
  • Official drivers / firmware

Steps to follow

  1. 1

    Remove tray

    Pull the main paper tray completely out of the printer.

  2. 2

    Check interior

    Look for paper remnants in the pickup roller area.

  3. 3

    Clean sensors

    Wipe the optical sensors with a lint-free dry cloth.

Frequently asked questions

This error means the paper sensor detects an obstruction in the input tray area, preventing proper feed.

Yes, print jobs will remain queued until the system detects the path is clear.

Using moist paper or low-quality stock is the main reason sensors become blocked by dust.

Clean feed rollers every 50,000 prints or if you notice paper slipping.