HP 729 Printhead Replacement Kit F9J81A: includes ink set
The HP 729 Printhead Replacement Kit (F9J81A) is a genuine HP replacement printhead designed to restore sharp line accuracy, clean colour output, and reliable performance on compatible HP DesignJet printers.
Ideal for CAD, GIS, technical drawings, and everyday large format printing, this integrated 4-colour HP printhead is engineered to work seamlessly with HP 728 ink cartridges as part of a complete HP printing system.
For architects, engineers, surveyors, and technical users, the HP 729 printhead helps reduce downtime and maintain consistent professional print quality.
Ink Included
This HP 729 printhead replacement kit includes a generous amount of genuine HP ink:
1 x 69ml Black
3 x 40ml Cyan, Magenta and Yellow
This makes the kit a practical and cost-effective way to restore print performance, we recommend removing installed cartridges, and using the included ink for the installation process, and then reinstalling your original cartridges once ink is depleted.
Restore Crisp CAD and Technical Print Quality
If your printer is showing reduced line quality, inconsistent colour, or print defects, replacing the printhead can help restore output performance.
The HP 729 printhead is designed to produce:
- Crisp, clear CAD drawings
- Sharp text and fine line detail
- Accurate colour reproduction
- Smooth general-purpose print output
It is particularly well suited to technical environments where precision matters.
Designed for Reliable HP DesignJet Performance
Original HP printheads are developed alongside the printer to create a fully optimised printing system.
This helps ensure:
- Consistent print quality
- Dependable day-to-day reliability
- Fewer interruptions
- Reduced risk of compatibility issues
Using a genuine HP 729 printhead helps protect your printer and maintain predictable performance over time.
Easy to Replace, Easy to Maintain
The HP 729 printhead replacement kit is designed for simple user installation.
It fits the way technical teams work, making it easier to replace worn printheads quickly and get the printer back into service with minimal disruption.
Once replaced, return the old printhead to HP through the HP Planet Partners recycling scheme. Simply request a free postage return envelope.
Compatible HP DesignJet Printers
The HP 729 Printhead Replacement Kit F9J81A for the following printers:
- HP DesignJet T830 24″ A1 MFP
- HP DesignJet T830 36″ A0 MFP
- HP DesignJet T730 36″ A0 Printer
If you use HP 728 inks in one of the above models, this is the correct genuine HP printhead replacement kit.
Why Choose the HP 729 Printhead Replacement Kit?
Choosing a genuine HP printhead helps maintain the print quality and reliability your DesignJet printer was built to deliver.
The HP 729 printhead replacement kit is a strong choice for users who need dependable technical print quality, clean line accuracy for CAD output, reliable colour performance, and fast replacement with minimal downtime.
Because it is designed by HP as part of the complete printing system, it helps deliver more predictable results and long-term printer reliability.
Key Features
- Genuine HP 729 Printhead Replacement Kit
- HP part number F9J81A
- Integrated 4-colour printhead
- Designed for crisp CAD and general-purpose prints
- Helps reduce downtime and maintain productivity
- Easy to install and replace
- Supports consistent colour accuracy and fine line detail
- Includes free genuine HP ink
- Works with HP 728 ink cartridges
HP 729 Printhead and HP 728 Inks
The HP 729 printhead works with HP 728 inks, making it an essential component in compatible HP DesignJet technical printers.
Using the correct genuine consumables helps ensure:
- Better system reliability
- More predictable output
- Reduced maintenance issues
- Professional large format print quality
Genuine HP Quality You Can Trust
HP supplies are designed to work together as one complete system.
That means the printer, printhead, and ink cartridges are all developed to deliver reliable performance and professional results.
For users producing technical drawings, presentation layouts, and general office plots, that reliability matters.
When Should You Replace the HP 729 Printhead?
You may need to replace the HP 729 printhead if you notice fading output, missing lines, inconsistent colour, nozzle-related defects, or a drop in CAD line sharpness. Your HP DesignJet may also display an error code advising replacement.
Replacing the printhead at the right time helps restore print quality and prevent avoidable downtime.


