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The HP 728B 300ml Matte Black DesignJet Ink Cartridge (part number 3WX30A) is a high-capacity, pigment-based ink cartridge specifically engineered for large-format professional printing applications. Designed to deliver deep, consistent matte black tones, this cartridge is ideal for use in architectural plans, engineering renderings, GIS maps, signage, and other technical drawings requiring precise, smudge-resistant output with minimal glare. With its 300ml volume, it supports high-volume printing environments by reducing cartridge changes and lowering overall printing costs. This OEM HP cartridge is optimized for compatibility with HP DesignJet T730 and T830 series printers, ensuring seamless integration and reliable performance. Its fade-resistant pigment-based formula guarantees long-lasting archival quality and robust resistance to environmental factors, making it perfect for producing professional-grade prints with sharp legibility and superior durability over time.
Key Features
| Features | Description |
|---|---|
| Ink Type | Pigment-based Matte Black |
| Cartridge Capacity | 300 ml |
| Print Technology Compatibility | HP DesignJet T730 and T830 Series |
| End Use | Architectural drawings, GIS maps, renderings, signage |
| Durability | Fade-resistant and smudge-resistant for long-term archival quality |
| Color Finish | Matte Black with minimal glare |
| OEM Part Number | 3WX30A |
| Ink Drops Supported | Millions of ink drops for high-volume printing |
| Cost Efficiency | High capacity reduces cartridge replacements and cost per print |
| Reliability | Guaranteed compatibility and reduced print head issues |
| Attributes | Description |
|---|---|
| Volume | 300 ml |
| Color | Matte Black |
| Formulation | Pigment-based ink |
| Printer Compatibility | HP DesignJet T730 / T830 Series |
| Part Number | 3WX30A |
| Ink Finish | Matte |
| Fade Resistance | Yes, optimized for long-lasting archival quality |
| Application Areas | Plans, renderings, architectural drawings, GIS maps, signage |
| OEM | Hewlett-Packard |
| Packaging | Genuine HP cartridge packaging |
*Disclaimer: The above description has been AI-generated and has not been audited or verified for accuracy. It is recommended to verify product details independently before making any purchasing decisions.
No, the HP 728B cartridge is specifically compatible with HP DesignJet T730 and T830 series printers only.
Yes, the pigment-based matte black ink formulation ensures smudge resistance and crisp legibility, which is critical for professional architectural and technical printing.
Yes, with a high capacity of 300ml, the HP 728B cartridge is designed for high-volume large-format printing, reducing downtime for cartridge changes.
The matte black finish produces minimal glare and provides crisp, clear lines, making it ideal for plans, renderings, and signage that require professional presentation.
Its pigment-based ink formula offers fade resistance and protects prints from smudging and environmental wear, ensuring archival-quality output over time.
Country Of Origin: Taiwan
The HP 728B 300ml Matte Black DesignJet Ink Cartridge (part number 3WX30A) is designed to meet the demands of high-volume large-format printing environments. Formulated as a pigment-based matte black ink, it delivers deep, consistent black tones and excellent durability — making it ideal for plans, renderings, architectural drawings, GIS maps, signage and other professional-grade output. As listed on HP India’s official site, this cartridge supports millions of ink drops and is engineered for fade-resistant performance.
Key advantages:
High capacity (300 ml) ensures fewer interruptions and lower cost per print for prolific users.
Matte black finish produces crisp legibility, minimal glare and professional presentation – especially important for printed drawings and plans.
Genuine HP OEM reliability, guaranteeing compatibility with supported printers (such as the HP DesignJet T730 / T830 series) and minimizing the risk of print head issues or cartridge errors.)
Optimised for durability, with pigment-based formulation resisting fading and smudging even over time or when exposed to ambient conditions, giving stable archival quality output.
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