Welcome back to the HTVRONT D2 DTF Printer replacement parts series.

In the previous replacement guide, we learned:

• 🔌 Replacement Guide 1: How to Replace the Cable

Today, in the second replacement guide, we cover: How to Replace the White Ink Filter.

📂 Replacement Parts Guide Series:

• 🔌 1. How to Replace the Cable
• 💧 2. How to Replace the White Ink Filter (this guide)
• 🖨️ 3. How to Replace the Ink Pad (coming soon)
• 🧴 4. How to Replace the Ink Sac (coming soon)

⚠️ Important Safety Precautions:

• Turn off the printer before starting — the printer should be powered down but can remain plugged in for grounding (or unplug for extra safety).
• Wear gloves — white ink and cleaner ink can stain skin and clothing.
• Place paper towels or a cloth underneath the work area to catch any ink drips.
• Use only official HTVRONT white ink filters — third-party filters may not fit or could restrict ink flow.

• 💧 Official HTVRONT white ink filter (from accessory box or purchased separately)
• ✂️ Scissors or cutting tool (for cutting ink tubes)
• 🧤 Gloves (recommended)
• 🧻 Paper towels or cloth (for any ink spills)

The white ink filter is a small inline filter located in the white ink delivery system of the D2 DTF Printer. Its purpose is to remove impurities, sediment, or coagulated pigment particles from white ink before they reach the printhead. Because white ink contains larger, heavier pigment particles than CMYK inks, it is more prone to sedimentation and clogging. A clogged or dirty filter restricts white ink flow, resulting in faded, streaky, or missing white ink in prints — which is especially noticeable on dark garments that rely on a solid white underlay.

Follow these steps carefully. The entire process takes about 5 minutes.

1. Turn off the printer. (It can remain plugged in for grounding, or unplug for extra safety.)
2. Open the top cover.
3. Set the White Ink Circulation Speed Knob to Min to stop ink flow during replacement. (Refer to Pic 1)

1. Open the rear maintenance door located at the back of the printer.
2. Locate the white ink filter — it is a small cylindrical component connected to the white ink tubes.

1. Push the white ink filter inward to release it from its mounting clip.
2. Remove the filter from the printer.
3. Cut the ink tubes on both ends of the old filter to detach it completely.

⚠️ Tip: Have paper towels ready to catch any residual ink that may drip from the cut tubes.

1. Take a new white ink filter from the accessory box (or your replacement parts kit).
2. Insert the new filter into the mounting clip.
3. Secure it by following the reverse steps — push it outward until it clicks into place.

1. Make sure the two ink tubes are not twisted together.
2. You can slightly rotate the white ink filter to keep both tubes straight and parallel — this ensures smooth ink flow and prevents kinks.

⚠️ Important: Twisted or kinked tubes can restrict white ink flow, leading to the same symptoms you're trying to fix. Take an extra moment to ensure the tubes are properly aligned.

1. Set the White Ink Circulation Speed Knob back to the middle position to restore normal ink circulation.
2. Close the rear maintenance door.

📘 Related tutorial: For more information on white ink settings, see Lesson 8: 4 Types of White Ink Underlay.

1. Power on the printer.
2. Run a nozzle check to verify white ink is flowing correctly.
3. Print a test image on dark fabric or film to confirm white ink opacity has been restored.

Watch the 1-minute 20-second video below for a complete visual walkthrough of the white ink filter replacement process.

Quick Summary:

1. Power off → Open top cover → Set circulation knob to Min
2. Open rear maintenance door → Locate white ink filter.
3. Push filter inward → Remove → Cut tubes on both ends.
4. Install new filter (from accessory box) → Secure in mounting clip.
5. Ensure tubes are straight and not twisted → Rotate filter slightly if needed.
6. Set circulation knob back to middle position → Close door → Test print.

⏱️ Total time: 5 minutes. 💧 Use only official HTVRONT white ink filters.

You now know how to replace the white ink filter on your D2 DTF Printer. In the next replacement guides, we will cover:

• 🖨️ How to Replace the Ink Pad – When the waste ink alert triggers
• 🧴 How to Replace the Ink Sac – Replacing damaged ink delivery components

Stay tuned and keep your D2 printing perfectly! 🔧

📘 Previous Replacement Guide: How to Replace the Cable

A: There is no fixed schedule. Replace it only when you notice white ink issues (faded output, missing white, inconsistent flow) after ruling out other causes. Some users may never need to replace it; others may need to every 6-12 months depending on ink usage and environmental conditions.

A: No. White ink filters are designed as single-use components. Attempting to clean and reuse them may damage the filter material or introduce contaminants into the ink system. Always use a new, official HTVRONT replacement filter.

A: After replacement, simply set the circulation knob back to the middle position and run a nozzle check. If white ink doesn't flow immediately, run one or two automatic cleaning cycles to purge any air introduced during replacement.

A: Official HTVRONT white ink filters are available from the HTVRONT website or authorized distributors. The accessory box that came with your D2 printer includes one spare filter — check there first.

A: White ink contains titanium dioxide (TiO₂) pigment particles, which are larger and heavier than the pigments in CMYK inks. These particles settle faster and are more likely to accumulate in the filter. This is why the D2 has a white ink circulation system and a dedicated white ink filter.

A: Check the following in order: (1) White ink bottle not empty, (2) Circulation knob set to middle, (3) No air in tubes (run cleaning cycles), (4) Tubes not kinked or twisted. If all else fails, contact HTVRONT support.

📧 Need help? Contact HTVRONT support: support@htvront.com