e-bufferDPK7001

Error E-Buffer Fujitsu DPK7001: Buffer Overflow

The Fujitsu DPK7001 error E-Buffer points to an issue with the input buffer handling print data. This typically happens when the host computer sends data faster than the printer can process, or if the interface settings are mismatched.

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Common causes

  • 1Mismatched serial port baudrate.
  • 2Attempting to print high-resolution images.
  • 3EMI/RFI interference on long data cables.
  • 4Printer memory overflow due to large print jobs.

Solutions

Diagnóstico rápido

E-Buffer means the printer's internal queue is overflowing or corrupt. It frequently occurs when printing graphics-heavy documents on a dot matrix machine not designed for complex rendering.

Solución paso a paso

  1. Cancel Queue: Clear the job list on your PC.
  2. Power Cycle: Turn off for one minute to flush volatile memory.
  3. Match Settings: Verify baudrate and parity settings match your host machine.
  4. Batch Print: Send documents in smaller chunks if the error occurs during long jobs.

Prevención y mantenimiento

Use plain text formats whenever possible. Avoid high-resolution graphics which exceed the buffer's design intent.

Cuándo llamar a un técnico

If the error occurs immediately upon power-up, the internal memory chip on the motherboard may be faulty.

Ficha técnica del equipo

Steps to follow

  1. 1

    Cancel Print

    Cancel all pending documents in your OS print queue.

  2. 2

    Purge Memory

    Power off and disconnect the data cable to clear internal volatile memory.

  3. 3

    Check Baudrate

    Ensure the baudrate in your software matches the printer hardware settings.

  4. 4

    Reconnect

    Reconnect the interface cable and restart the print job.

Frequently asked questions

The E-Buffer error occurs when the input buffer is full or the data protocol is incompatible.

Sending massive files or misconfigured port speed settings are the primary causes.

Use official drivers; generic drivers can overwhelm the printer's simple processing chip.

High-quality, shielded cables are highly recommended, especially for long-range serial connections.