42.01CS531dw

Lexmark CS531dw error 42.01: Tray Setup Fix

The Lexmark CS531dw error 42.01 is a common notification signaling a paper size mismatch. It occurs when the physical paper format in the tray does not align with the paper size configuration currently saved in the printer's firmware. Learning to fix the Lexmark CS531dw error 42.01 ensures your device processes documents without interruptions.

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Common causes

  • 1Tray guide position does not match menu setting.
  • 2Incorrect paper size selection in control panel.
  • 3Stuck size sensor inside the paper drawer.
  • 4Invalid non-standard paper size definitions.

Solutions

Quick Diagnosis

If you have loaded a new type or size of paper, the 42.01 error is just a reminder that the printer needs to verify the new dimensions against the tray guides.

Step-by-Step Solution

  1. Check the tray guides and align them with the edges of your paper.
  2. Access the printer control panel, navigate to Paper settings, and select the match size.
  3. Save and exit the settings menu to force a status refresh.

Prevention and Maintenance

Always update the paper size on the panel whenever you replace a paper stack. Keep the tray area clean to prevent the size-detecting switches from sticking.

When to Call a Technician

If you have correctly configured the menu and guides but the printer persists in showing the error, there might be a broken switch inside the tray assembly.

Device Technical Data

  • Technology: Color Laser Printer.
  • Speed: Up to 35 ppm.
  • Connectivity: USB, Ethernet, Wi-Fi.
  • Capacity: 250-sheet standard input.
  • Consumable: 24B60xx toner series.
  • Use: Small offices and workgroups.
  • Support Center

Steps to follow

  1. 1

    Align guides

    Ensure the tray guides are locked tightly to the paper edges.

  2. 2

    Check settings

    Go to the display menu and select the correct paper size.

  3. 3

    Confirm

    Save settings so the printer registers the change.

Frequently asked questions

The printer detects a mismatch between the tray guides physical position and the software size setting.

Usually not; it's a configuration error easily fixed by updating the printer menu.

Uses 24B60xx toner cartridges. Official Lexmark parts are recommended.

Only when switching paper sizes without confirming settings on the touch screen.

Lexmark CS531dw error 42.01: Tray Setup Fix | Vimazdev