4004PX4i

Honeywell PX4i Error 4004: Memory & Buffer Issues

The Honeywell PX4i is an industrial workhorse, but it has defined hardware limits for processing fonts, graphics, and label formats. Error 4004 indicates that the processor has received data—typically high-resolution graphics or complex PDF-converted files—that exceeds the available capacity of the SDRAM. This issue is most frequent in label designs containing large, uncompressed image files. Correcting this involves optimizing your print data stream to ensure smooth performance without saturating the printer's internal memory.

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Common causes

  • 1Processing high-resolution graphics beyond 300/400 dpi capability.
  • 2Saturation of RAM due to excessive permanently stored fonts.
  • 3Sending print files that are too heavy for the internal buffer architecture.
  • 4Physical failure in the volatile SDRAM chip due to power surges or age.

Solutions

Diagnóstico rápido

Error 4004 typically occurs during the processing phase of complex label formats. If this error appears only with specific designs, it confirms a memory saturation caused by the job content rather than a hardware defect.

Solución paso a paso

  1. Simplify the label design: Resize all images and logos to 203 dpi, which matches the standard print density and minimizes file size.
  2. Clear printer memory: Navigate to the setup menu and remove stale label formats, unused fonts, or old logos.
  3. Batch printing: If sending high-volume jobs, split them into smaller chunks to prevent buffer overflow.
  4. Power cycle: Perform a hard reset to clear all temporary data from the RAM and restart the processing buffer.

Prevención y mantenimiento

  • Optimize all design files to avoid heavy uncompressed image formats like high-resolution BMPs.
  • Keep firmware up to date to improve overall memory management capabilities.
  • Avoid storing unnecessary custom fonts in the printer's non-volatile memory.

Cuándo llamar a un técnico

If the error 4004 persists after simplifying print jobs and clearing the memory, it may indicate a failing SDRAM module. Professional replacement of the internal memory or the main logic board will be necessary.

Ficha técnica del equipo

  • Technology: Industrial thermal transfer printer
  • RAM: 16 MB SDRAM (expandable per sub-model)
  • Resolution: 203, 300, or 400 dpi
  • Memory Management: Fingerprint/IPL format support
  • Compatible consumables: Industrial-grade wax, resin, or wax/resin ribbons
  • Recommended use: High-rotation labels with complex graphic elements

Steps to follow

  1. 1

    Graphic Optimization

    Adjust graphic resolution to 203 or 300 dpi within your label design software.

  2. 2

    Memory Cleanup

    Delete unnecessary fonts and obsolete label formats from the printer's local storage.

  3. 3

    Batch Management

    Split massive print runs into smaller batches to prevent buffer overflow issues.

Frequently asked questions

It means the printer lacks sufficient memory to process the label file you sent. This usually happens when the file contains graphics that are too large or complex.

It is urgent in terms of productivity, but it is not a hardware-killing error. It is simply a sign that your print job is too demanding for the available RAM.

No, ribbons (consumables) do not affect memory. This is entirely a data-management issue.

Keep the internal memory clean by deleting fonts or logos you no longer use, and optimize image resolutions in your designs.