400MC562dn

OKI MC562dn error 400: Memory Troubleshooting Guide

The OKI MC562dn error 400 occurs when the device fails to process data sent from a computer. It is common to ask why does my OKI MC562dn show error 400 when printing, usually caused by complex image files or large PDFs that exceed the device's RAM capacity. A simple clearing of the print queue and cache is usually sufficient to resume operations.

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Common causes

  • 1RAM buffer overload from excessively large files.
  • 2Corruption within the print spooler queue.
  • 3Outdated printer firmware failing to handle current document formats.
  • 4Incompatible or outdated printer driver.

Solutions

Diagnóstico rápido

The error 400 is specifically a memory processing issue. If this message appears, the printer's buffer is overwhelmed by the data stream from your PC.

Solución paso a paso

  1. Cancel all pending print jobs from your computer's print queue.
  2. Stop and restart the 'Print Spooler' service on your operating system.
  3. Turn off the printer and unplug it for 5 minutes to clear internal RAM.
  4. If the error persists, try printing the document as an 'image' from your PDF reader's advanced settings.

Prevención y mantenimiento

Avoid overloading the memory with batch printing. Update your printer firmware to improve memory management. Ensure your print drivers are up to date to minimize communication glitches.

Cuándo llamar a un técnico

If the error 400 appears consistently even after full power cycles and driver resets, the mainboard memory may be damaged.

Ficha técnica del equipo

  • Technology: Digital LED Color
  • Speed/performance: 26/30 ppm
  • Connectivity: USB 2.0, Ethernet 10/100, Wireless
  • RAM Capacity: 256 MB (expandable)
  • Compatible Consumables: OKI MC562 series toner
  • Recommended Use: Documents and standard graphic work
  • Official drivers / firmware

Steps to follow

  1. 1

    Cancel Jobs

    Cancel all pending print jobs from your computer's print queue.

  2. 2

    Restart Spooler

    Stop and restart the 'Print Spooler' service on your operating system.

  3. 3

    Clear Cache

    Turn off the printer and unplug it for 5 minutes to clear internal RAM.

  4. 4

    Update Drivers

    Reinstall or update the official driver if printing large PDF files still causes issues.

Frequently asked questions

The error 400 indicates a buffer overload in the printer's memory caused by a large or complex print job.

It is not hardware-critical, but it will block your ability to print until the memory buffer is cleared.

No, error 400 is related to data processing and system memory, not the toner cartridge.

Regularly restarting the device at the end of each shift helps flush the cache and maintains optimal performance.