900.01MS321dn

Lexmark MS321dn error 900.01: Memory Issue

The Lexmark MS321dn error 900.01 signifies an access violation or system memory management fault. This error occurs when the printer attempts a process that exceeds available RAM or accesses a restricted data block. It is a common interruption in heavy print jobs.

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Common causes

  • 1Random failure in RAM allocation.
  • 2Corrupt data structure in print files.
  • 3Conflicts from simultaneous network requests.
  • 4Hardware memory module with bad sectors.

Solutions

Quick Diagnosis

This error differs from 900.00 by focusing on internal RAM management. If the error occurs during complex processing, try setting output quality to 'draft'.

Step-by-Step Solution

  1. Power off: Completely power down and unplug the device.
  2. Clear queue: Delete all pending jobs from the host PC.
  3. Reboot: Power on without network connection for 2 minutes.

Prevention and Maintenance

Avoid saturating the printer with files over 50MB. Update firmware to optimize RAM usage.

When to Call a Technician

If the error occurs immediately upon power-on without print jobs, the controller board may have a failing RAM module.

Device Specifications

  • Technology: Monochrome Laser
  • Speed: 36 ppm
  • Connectivity: USB, Ethernet
  • Consumable: 50F series
  • Usage: Small office
  • Lexmark Drivers

Steps to follow

  1. 1

    Power off

    Power off and unplug for 5 minutes.

  2. 2

    Clear queue

    Clear all print jobs from the host PC.

  3. 3

    Reboot

    Power on and test printer status.

Frequently asked questions

It's an RAM access violation or controller fault.

Often related to print queue saturation.

50F series.

If it's one-off, just restart.