HP 728B 300-ml Matte Black Original DesignJet Ink Cartridge
Description
The HP 728B 300-ml Matte Black Original DesignJet Ink Cartridge, part number 3WX30A, is a genuine high-capacity HP ink supply designed for selected HP DesignJet T730 and T830 professional large-format printers. Its pigment-based Matte Black ink is formulated to produce crisp text, precise technical lines, deep black areas and clear details across architectural plans, engineering drawings, CAD documents, construction plans, maps, diagrams and professional presentations. The large 300-ml capacity is particularly suitable for businesses and professional users with regular or high-volume large-format printing requirements, helping reduce cartridge replacement frequency and printing interruptions. Original HP DesignJet inks are developed together with compatible HP printers and printheads to provide reliable ink delivery, consistent line quality and predictable printing performance. This is an authentic Original HP cartridge supplied in genuine HP packaging and is not a compatible, refilled or remanufactured product.
Key Features
- Genuine Original HP DesignJet ink cartridge
- Official HP manufacturer part number 3WX30A
- Large 300-ml high-capacity ink supply
- Pigment-based Matte Black ink
- Designed for selected HP DesignJet T730 and T830 printers
- Produces crisp and easily readable technical drawings
- Helps deliver accurate fine lines and clear small text
- Deep Matte Black output for technical documents and graphics
- Ideal for CAD, architectural and engineering applications
- Suitable for maps, plans, diagrams and professional presentations
- High-capacity design reduces cartridge replacement frequency
- Designed to support productive large-format workflows
- Original HP formulation helps support reliable printer and printhead operation
- Individual cartridge design allows only the depleted colour to be replaced
- Factory-sealed authentic HP product
- Not compatible, refilled or remanufactured
Technical Specifications
Compatible With
Warranty
Original HP ink cartridges are covered by HP's applicable limited warranty against eligible defects in materials and workmanship until the stated Warranty Ends date or applicable warranted usage limit is reached. Warranty conditions vary by region. Retain the original packaging, manufacturer part number and proof of purchase for warranty assistance.
