Description

The Genuine HP 728 130ml Magenta DesignJet Ink Cartridge [F9J66A] is an Original HP ink cartridge designed for compatible HP DesignJet T730 and T830 series large-format printers and multifunction devices. Containing 130ml of genuine HP dye-based Magenta ink, it is engineered to produce vivid colour, crisp graphics and accurate professional output for technical drawings, presentations, plans and general-purpose large-format printing.
Designed together with the HP DesignJet printing system, Original HP 728 ink helps deliver consistent print quality and reliable operation. The 130ml capacity provides a practical balance between cartridge cost and printing capacity for businesses, architects, engineers, construction professionals and other users of the DesignJet T730 and T830 platforms.
- ✔ Genuine Original HP DesignJet Ink Cartridge
- ✔ HP Cartridge Number: 728
- ✔ Manufacturer Part Number: F9J66A
- ✔ Colour: Magenta
- ✔ Ink Capacity: 130ml
- ✔ Dye-Based Magenta Ink
- ✔ Designed for HP DesignJet T730 Series
- ✔ Designed for HP DesignJet T830 Series
- ✔ Professional Technical & Large-Format Printing
- ✔ Genuine HP Quality & Reliability
Genuine HP 728 DesignJet Ink
The HP 728 ink family is specifically engineered for compatible HP DesignJet large-format printers. The F9J66A contains 130ml of Magenta ink and works together with the printer's other colour cartridges and printhead to produce clear technical documents and vivid professional colour.
Original HP inks are designed as part of an integrated DesignJet printing system, helping provide consistent output and predictable performance from cartridge to cartridge.
Key Features
- ✔ Genuine HP Original Ink Cartridge
- ✔ HP 728 Cartridge Series
- ✔ Part Number: F9J66A
- ✔ Colour: Magenta
- ✔ 130ml Ink Capacity
- ✔ Dye-Based Ink Formulation
- ✔ HP Thermal Inkjet Technology
- ✔ Designed for HP DesignJet Printers
- ✔ Suitable for Technical Drawings & Plans
- ✔ Vivid Colour for Presentations & Graphics
- ✔ Consistent Professional Output
- ✔ Reliable OEM Cartridge Recognition
- ✔ Suitable for Business & Professional Environments
130ml Capacity for Professional Printing
The F9J66A provides 130ml of Magenta ink, making it a practical option for regular DesignJet users who require more capacity than the smaller HP 728 colour cartridges without moving to the largest 300ml cartridge size.
HP offers the 728 colour ink family in multiple capacities, allowing users to select cartridge sizes according to their printing volume and workflow requirements.
Dye-Based Magenta Ink
The HP 728 F9J66A uses dye-based Magenta ink. In the compatible DesignJet T730 and T830 printing system, Cyan, Magenta and Yellow use dye-based inks, while Matte Black uses pigment-based ink.
This combination is designed to provide vivid colours for graphics and presentations while maintaining the sharp black line quality required for technical drawings and plans.
Compatible HP DesignJet Printers
The Genuine HP 728 F9J66A Magenta Ink Cartridge is designed for compatible printers in the following families:
- ✔ HP DesignJet T730 36-inch Printer
- ✔ HP DesignJet T730 with Rugged Case
- ✔ HP DesignJet T830 24-inch Multifunction Printer
- ✔ HP DesignJet T830 36-inch Multifunction Printer
- ✔ Selected HP DesignJet T830 Rugged / Armor Case Configurations
Important: Please confirm that your exact printer model specifies HP 728 / F9J66A before ordering, particularly where printers have been sourced from different regional markets.
Professional Technical & Large-Format Output
The HP 728 ink system is designed for professional DesignJet applications including architectural plans, engineering drawings, construction documents, maps, presentations, renderings and general-purpose large-format colour output.
Genuine HP Magenta ink works with Cyan, Yellow and Matte Black to reproduce clear graphics and easily distinguishable colours, helping technical information remain readable and professional.
Designed for HP DesignJet Reliability
Original HP inks are designed together with compatible HP DesignJet printers and printheads as an integrated printing system. This helps provide consistent print quality and reliable cartridge-to-printer communication.
For businesses where printer availability and predictable output are important, using the correct Genuine HP cartridge helps maintain the performance expected from the DesignJet platform.
Product Specifications
| Brand | HP |
| Cartridge Series | HP 728 |
| Manufacturer Part Number | F9J66A |
| Product Type | Genuine DesignJet Ink Cartridge |
| Manufacturer Type | Genuine / Original HP |
| Colour | Magenta |
| Ink Capacity | 130ml |
| Ink Type | Dye-Based |
| Print Technology | HP Thermal Inkjet |
| Cartridge Selectability | 728 |
| Pack Quantity | 1 Ink Cartridge |
| Compatible Printer Family | HP DesignJet T730 / T830 Series |
| Compatible Models | DesignJet T730 36-inch / T830 24-inch / T830 36-inch |
| Condition | New |
HP 728 130ml Colour Ink Range
The compatible HP 728 130ml colour ink range uses separate Cyan, Magenta and Yellow cartridges, allowing each colour to be replaced independently when required.
| Part Number | Colour | Capacity |
| F9J65A | Yellow | 130ml |
| F9J66A | Magenta | 130ml |
| F9J67A | Cyan | 130ml |
This listing is specifically for 1 × Genuine HP 728 F9J66A 130ml Magenta Ink Cartridge.
HP 728 Cartridge Capacity Options
HP provides different cartridge capacities within the 728 family to suit different printing volumes. Compatible colour cartridges are available in smaller 40ml, medium-capacity 130ml and high-capacity 300ml options.
For users with higher print volumes, larger cartridges can reduce the frequency of consumable replacement, while the 130ml F9J66A provides a useful balance for regular professional printing.
Ideal For
- ✔ Architects & Architectural Practices
- ✔ Engineers & Engineering Offices
- ✔ Construction & Building Companies
- ✔ Surveyors & Planning Professionals
- ✔ CAD & Technical Drawing Applications
- ✔ Government & Educational Organisations
- ✔ Maps, Plans & Large-Format Documents
- ✔ Business Presentations & Graphics
- ✔ HP DesignJet T730 Users
- ✔ HP DesignJet T830 Users
- ✔ Organisations Requiring Genuine HP Ink
Why Choose Genuine HP 728 Ink?
The Genuine HP 728 F9J66A is specifically engineered for supported HP DesignJet printers and provides the correct ink formulation, cartridge communication and physical compatibility intended for the printing system.
For professional users who depend on their DesignJet for technical and large-format output, Genuine HP ink helps provide consistent colour, clear results and reliable day-to-day operation.
What's Included?
- ✔ 1 × Genuine HP 728 130ml Magenta DesignJet Ink Cartridge [F9J66A]
Frequently Asked Questions (FAQ)
Is the F9J66A a Genuine HP ink cartridge?
Yes. This listing is for a Genuine Original HP 728 DesignJet Ink Cartridge, not a compatible, generic or remanufactured cartridge.
What colour is HP F9J66A?
The F9J66A is Magenta.
How much ink does the HP 728 F9J66A contain?
The F9J66A contains 130ml of Magenta ink.
Is HP 728 Magenta pigment or dye ink?
The HP 728 Magenta ink is dye-based. The Cyan and Yellow inks used by the compatible T730/T830 system are also dye-based, while Matte Black uses pigment-based ink.
Which printers use the HP 728 F9J66A?
The F9J66A is designed for compatible HP DesignJet T730 and T830 series printers, including the T730 36-inch printer and T830 24-inch and 36-inch multifunction printers.
Does F9J66A work with the HP DesignJet T730?
Yes. HP specifies the F9J66A 130ml Magenta cartridge for the DesignJet T730 36-inch printer.
Does F9J66A work with the HP DesignJet T830?
Yes. The F9J66A is compatible with supported HP DesignJet T830 24-inch and 36-inch multifunction printers.
What is the difference between HP 728 40ml, 130ml and 300ml cartridges?
The main difference is ink capacity. HP offers different 728 cartridge sizes to suit different printing volumes. Higher-capacity cartridges require less frequent replacement, while the 130ml cartridge provides a practical option for regular DesignJet users.
Can I replace only the Magenta cartridge?
Yes. Compatible HP DesignJet T730 and T830 printers use separate colour ink cartridges, allowing the Magenta cartridge to be replaced independently when required.
Is this cartridge suitable for CAD drawings and technical plans?
Yes. The HP 728 ink system is designed for professional DesignJet applications including technical drawings, plans, maps, renderings, presentations and other large-format documents.
What comes in the box?
The package contains 1 × Genuine HP 728 F9J66A 130ml Magenta DesignJet Ink Cartridge.
OEM Code: F9J66A
Brand: HP
Duty Cycle: 130ml
Includes Of:
1 x Genuine HP #728 130ml Magenta Ink Cartridge F9J66A
Compatible Printer Models:
HP Designjet T730
HP Designjet T830

Estimate shipping
Refund Policy
The OZ Toner Return Policy applies to all purchases made on this website.
We recommend you read our Returns Policy carefully prior to placing an order and retain a copy of these terms and your order so you are familiar with our policy on refunds, returns and exchanges and your rights under the Australian Consumer Law.
We recommend you immediately examine goods delivered to you to ensure that there are no visible signs of damage or fault and that the goods received match the order you placed. Our exchange/return window is within 30 days of receiving your order. All incorrectly ordered or unwanted returns will incur a minimum 20% restocking fee.
Our Return Address
52A/5 Gladstone Rd, Castle Hill, NSW 2154
Exchange/Return (Consumables)
OZ Toner allows exchange/return within 30 days of receiving your order. This applies to consumable products purchased from us: inks, toners, printing and fax supplies and paper. Please scroll down to read our policy on exchange/return for scanners and printers.
If any consumable goods purchased from OZ Toner are damaged, lost in transit, incorrect or faulty, please contact us at support@oztoner.com with this information:
- Your order number
- Detailed description of the reason for return/exchange request
- Photo proof (if applicable).
For exchanges, the product/s must be in the original (new/unused) condition that you received it, in its original packaging. The customer is responsible for the postage fee to send the product/s back to us. OZ Toner will pay the postage to send the new product/s to the customer. All product/s sent back to us must use tracked post, we are not responsible for product/s lost in transit.
Exchange/Return (Hardware)
OZ Toner allows exchange/return within 30 days of receiving your order. This applies to hardware products purchased from us: scanners and printers.
If any hardware goods purchased from OZ Toner are damaged, lost in transit, incorrect or faulty, please contact us at support@oztoner.com with this information:
- Your order number
- Detailed description of the reason for return/exchange request
- Photo proof (if applicable).
Please ensure to contact us via email at support@oztoner.com before returning any items to obtain a Return Authorization Number. Return Authorizations are only valid for 14 days.
It is your obligation to pack returned products satisfactorily to prevent any damage to the items or boxes. You have a legal obligation to take reasonable care of the product/s while they are in your possession until they reach our warehouse.
When returning your purchase, we ask that you provide a Proof of Purchase (Order Confirmation Email) and where possible the product/s in original unopened packaging.
Once received back, we will issue a replacement or full/partial refund depending on actual case.
Change of Mind Returns
Please choose carefully as we do not provide a refund if you have simply changed your mind or made a wrong selection.
If you wish to exchange product/s which you have purchased in error, we will happily exchange provided that:
- You return the product/s within 30 days of purchase.
- You provide Proof of purchase (Your Order Confirmation Email)
- Product/s are unopened, unused and in its original packaging.
- A minimum of 20% restocking fee applies.
- You must bear the risk of return and is responsible for the costs of return postage.
- You must confirm the product/s are received and notify us before returning the product/s, the product/s being returned must satisfy all the return requirement stated above.
- The initial shipping fee charged, or any outbound postage incurred to ship to the customer will not be refunded or credited.
We reserve the right not to offer an exchange if the above requirements are not met.
Return shipping and costs are the responsibility of the customer. We recommend customers to send the item back with a tracked service. For high value products, the customer is also advised to use an insured shipping method.
Faulty or Damaged items
We provide refund or replacement on defective and damaged products.
You MUST contact us within 30 days of product/s being received and believed to be faulty. We will provide the contact information of manufacturer. Customer MUST contact manufacturer to request return authorization letter / DOA letter. Once we received the RA letter or DOA letter from the customer, we will initiate the return process and send customer our return instruction. When the goods are returned to us, we will offer either refund or replacement for the customer.
Items with Manufacturer Warranty:
Buyers must contact manufacturer of the item for all the warranty service within the warranty period. We will provide contact details of the manufacturer to the buyer. We have no other responsibility (including DOA) for items covered with manufacturer warranty.
Items with Onsite Manufacturer Warranty:
Buyers must contact manufacturer of the item for all the on-site warranty service within the warranty period. We will provide contact details of the manufacturer to the buyer. We have no other responsibility (including DOA) for items covered with manufacturer warranty.
Items with Return to Base Warranty:
Buyers are responsible to send back the faulty item to us. Items with valid warranty within the warranty period will be replaced with fully functional unit after checking. Please allow up to 2 weeks for replacement. We have no guarantee on product compatibility with buyers own equipment unless specified on the item listing.
Any other issues and queries, customers are welcome to send us message and email to discuss further.
Refund Conditions
-
Refunds are only issued under certain circumstances, such as:
-
DOA products where no exchange/replacement is possible
-
Incorrect supply where the proper model cannot be provided
-
Approved cases where neither replacement nor upsell option is available
-
-
All refunds must be pre-approved by OzToner.au management before processing.
-
Refunds are made via the original payment method and typically processed within 7 business days after approval.
Delivery Charges
Any product/s replaced under the Returns Policy due to being damaged, faulty or incorrect will be delivered to you free of charge.
Any returns due to you changing your mind about your purchase will incur a re-delivery fee.
Consumer Guarantees
Under the Australian Consumer Law, you have Consumer Guarantees for Goods and Services You purchase. Our product/s come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and for compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the product/s repaired or replaced if the product/s fail to be of acceptable quality and the failure does not amount to a major failure.
Where you believe an item is faulty, you must contact manufacturer to for it to be assessed within a reasonable period of time, and you must request return authorization letter from the manufacturer if the item is confirmed faulty. If there is a major failure with the item, and you have forwarded the return authorization letter granted by manufacturer to us, you may choose a refund or exchange. If the failure is minor, manufacturer will honor the warranty and repair the item for you within a reasonable time.
Where an item is damaged through misuse or abnormal use, OZ Toner cannot provide a refund, exchange or repair, whether the fault is identified by OZ Toner, the manufacturer or their service agent.
OZ Toner will require satisfactory proof of purchase before providing a remedy under the Australian Consumer Law.
For further information about the Australian Consumer Law and Consumer Guarantees, visit www.consumerlaw.gov.au.


