Are Godex G300, GE300, G500, G500-U, RT700, and RT700X Printheads Compatible?
One of the most common questions from barcode printer users is:
"Can the Godex G300, GE300, G500, G500-U, RT700, and RT700X use the same printhead?"
The short answer is:
Yes-provided the printers share the same print resolution (203 dpi), these models use the same printhead and are fully interchangeable.
According to multiple Godex spare parts catalogs and distributor documentation, these printers share the OEM printhead part number 021-G50007-000, indicating they use the same 4-inch 203 dpi printhead assembly.
Compatible Printer Models
The following printers are compatible with the 203 dpi printhead:
| Printer Model | Resolution | Compatible |
| Godex G300 | 203 dpi | ✅ Yes |
| Godex GE300 | 203 dpi | ✅ Yes |
| Godex G500 | 203 dpi | ✅ Yes |
| Godex G500-U | 203 dpi | ✅ Yes |
| Godex RT700 | 203 dpi | ✅ Yes |
| Godex RT700X | 203 dpi | ✅ Yes |
These printers all use the Godex 021-G50007-000 printhead.
Why Can These Models Share the Same Printhead?
Although these printers belong to different product families, they share nearly identical print engine architecture.
Common characteristics include:
- 4-inch printing width
- 203 dpi thermal print resolution
- Same printhead mounting dimensions
- Same electrical connector
- Same ribbon/media path
- Same printhead control interface
Because of these shared mechanical and electrical specifications, the printhead can be installed directly without modification.
Compatibility Matrix
| Printer | G300 PH | GE300 PH | G500 PH | G500-U PH | RT700 PH | RT700X PH |
| G300 | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
| GE300 | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
| G500 | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
| G500-U | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
| RT700 | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
| RT700X | ✔ | ✔ | ✔ | ✔ | ✔ | ✔ |
Result: All six 203 dpi models use the same replacement printhead.
Important: Resolution Matters
Compatibility depends on print resolution, not just the printer series.
For example:
- RT700 / G300 / GE300 / G500 → 203 dpi → Part No. 021-G50007-000
- RT730 / G330 / GE330 / G530 → 300 dpi → Part No. 021-G53007-000
A 203 dpi printhead cannot replace a 300 dpi printhead because:
Different heating element density
Different firmware calibration
Different dot spacing
Different print quality requirements
Always verify your printer's resolution before ordering a replacement.
Conclusion
For 203 dpi models, the Godex G300, GE300, G500, G500-U, RT700, and RT700X all use the same printhead (OEM Part No. 021-G50007-000), making them fully interchangeable. This compatibility simplifies spare parts inventory, lowers maintenance costs, and allows distributors and service providers to stock a single replacement printhead for multiple printer models. Always verify the printer's resolution before purchasing to ensure compatibility.
