300B4402

OKI B4402 Error 300: Fix Memory and Data Overload

The OKI B4402 error 300 is a memory overflow alert triggered when the printer's processor struggles with complex print data. Common in large document jobs, this error stops the printer to prevent data corruption. Understanding how to clear the spooler is the best way to resolve the OKI B4402 error 300.

1 views

Common causes

  • 1Overloaded files: High-res images exceeding the printer's buffer.
  • 2Stuck print spooler: Corrupted jobs lingering in the queue.
  • 3Outdated driver: Mismatch in data interpretation.
  • 4Network bottleneck: Latency affecting incoming data packets.

Solutions

Diagnóstico rápido

The device stalls with the data light blinking, indicating it cannot process the file. If this occurs only with certain files, those files are too complex.

Solución paso a paso

  1. Clear spooler: Clear the print queue in your OS.
  2. Restart service: Restart the 'Print Spooler' service.
  3. Simplify file: Reduce document resolution or print in sections.
  4. Power cycle: Power off and on to clear RAM.

Prevención y mantenimiento

Keep the printer firmware up to date and try to split large documents into smaller batches if you encounter persistent stalls.

Cuándo llamar a un técnico

If simple documents trigger this error, your RAM module might be faulty and require professional inspection.

Ficha técnica del equipo

  • Technology: Monochrome Laser
  • Performance: 40 ppm
  • Connectivity: USB/Ethernet
  • Feed Capacity: 250 sheets
  • Compatible Consumables: B4400 Series Toner
  • Recommended Use: Professional office
  • Official Drivers / firmware

Steps to follow

  1. 1

    Clear spooler

    Clear the print queue in your OS.

  2. 2

    Restart service

    Restart the 'Print Spooler' service.

  3. 3

    Simplify file

    Reduce document resolution or print in sections.

  4. 4

    Power cycle

    Power off and on to clear RAM.

Frequently asked questions

The printer is running out of memory processing a large document.

No, you usually just need to manage your file sizes better.

No, but updating your firmware can help with data processing.

Avoid sending huge PDF files all at once.