Neptune 4 Series: How to Identify Your Printer Version

Neptune 4 Series: How to Identify Your Printer Version

Your Neptune 4 Series printer comes in two versions, identified by the printhead cable: the Ribbon-Cable Version and the Type-C Version. It's important to know which version you have, as each requires different printhead parts and firmware. Using the wrong ones may cause performance issues.

Ribbon-Cable Version                                        Type-C Version

               

For Neptune 4 (Ribbon-Cable Version) Only

If you own a Neptune 4 with a ribbon cable, you will also need to check your stepper motor type to find the correct firmware.

How to Identify Your Motor Type

Method 1: Check the Motor Code
The most straightforward method is to check the model code on the bottom label of your stepper motor:
BJ42D15-26VXX = 0.8 A motor

Method 2: Measure the Motor Length
If the label is missing or unclear, you can measure the motor body length with a ruler or caliper:

34 mm = 0.8 A motor
40 mm = 1.2 A motor

Quick Reference Table

Conclusion

Before ordering printhead parts or updating your firmware:

1. Confirm your printhead cable version: Ribbon or Type-C.
2. If you have a Neptune 4 (Ribbon-Cable Version):

• Identify if your stepper motor is 0.8 A or 1.2 A.
• Download and install the matching firmware. 

If you’re still unsure which version you have, simply send our support team a clear photo of your printhead cable—and if needed, your motor label. We’ll help you confirm the right firmware or spare parts for your machine.

Happy Printing!