940-maintenance-callMS410dn

Lexmark MS410dn error 940: Maintenance Call

The Lexmark MS410dn error 940 is a system-level alert that signifies a potential issue with the printer's internal controller board or main logic. Unlike paper jams or toner issues, this code points toward electronic or firmware-related failures that impede normal bootup. Performing a power cycle is the first step in diagnosing this hardware issue.

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Common causes

  • 1Logic board hardware failure.
  • 2Corrupted firmware initialization.
  • 3Voltage spike damage.
  • 4Peripheral component short-circuiting the board.

Solutions

Quick Diagnosis

If the printer displays 940 upon startup, the mainboard is failing to initialize. Check if the display stays stuck on this message.

Step-by-Step Solution

  1. Disconnect the power cord completely.
  2. Keep it unplugged for 3 minutes to drain the capacitors.
  3. Plug directly into a stable wall outlet.
  4. If error persists, re-flash firmware if the menu is accessible.

Prevention and Maintenance

Use a high-quality UPS to prevent voltage spikes that could damage the logic board. Ensure the environment is dry.

When to Call a Technician

If power cycling does not clear the error, the main PCB is likely dead and requires professional repair.

Ficha técnica del equipo

Frequently asked questions

The 940 code refers to a critical system error related to the main printer controller.

Often a power cycle helps, but persistent 940 errors are usually hardware-related.

No, this error is unrelated to toners or imaging units.

Ensure a stable power connection via a surge protector or UPS.

Lexmark MS410dn error 940: Maintenance Call | Vimazdev