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Rectangular HP 728 magenta ink cartridge with matte plastic body and label

HP

HP 728 F9J66A 300 ml Magenta ink cartridge

SKU CH-YZ5V-DDPPB MPN F9J66A

High-capacity 300 ml magenta dye-based ink cartridge for HP DesignJet T730 and T830 series printers

  • Cartridge QuantitySingle Pack
  • Cartridge ColorMagenta
  • Replacement ModelHP
  • Ink Drop Size6 pl
  • Ink TypeDye-based
  • Operating Humidity20 to 80% RH
  • Crisp, accurate prints for CAD and general-purpose work from Original HP dye-based ink
  • High-capacity 300 ml cartridge enables long unattended printing runs
  • Designed as an optimized system with HP DesignJet T730 and T830 series printers
  • Consistent professional results print after print with 6 pl ink drop size
  • Reliable operation across 20 to 80% humidity and 41 to 104°F temperature range

HP 728 300 ml Magenta Cartridge

This genuine HP 728 cartridge supplies 300 ml of magenta dye-based ink for HP DesignJet T730 and T830 series printers. It is aimed at design and engineering workgroups that produce CAD and general-purpose prints and want high-capacity supplies for longer unattended runs.

Compatibility Check Before Ordering

Verify that your printer is an HP DesignJet T730 or T830 series model, as this cartridge is built for those devices. Ensure the operating environment stays within 41 to 104°F and 20 to 80% relative humidity, and store spares between -13 and 131°F at the same humidity range.

Build and Daily Use

The single-pack cartridge uses a 6 pl ink drop size to deliver crisp, clear output on technical documents. High-capacity 300 ml volume reduces the frequency of replacements, helping to keep production moving with fewer interruptions during heavy print workloads.

Highlights

  • Crisp, accurate prints for CAD and general-purpose work from Original HP dye-based ink
  • High-capacity 300 ml cartridge enables long unattended printing runs
  • Designed as an optimized system with HP DesignJet T730 and T830 series printers
  • Consistent professional results print after print with 6 pl ink drop size
  • Reliable operation across 20 to 80% humidity and 41 to 104°F temperature range

Specifications

BrandHP
SeriesHP 728
Part NumberF9J66A
Cartridge QuantitySingle Pack
Cartridge ColorMagenta
Replacement ModelHP
Ink Drop Size6 pl
Ink TypeDye-based
Operating Humidity20 to 80% RH
Storage Humidity20 to 80% RH
Operating Temperature41 to 104°F
Storage Temperature-13 to 131°F
FeaturesHP 728 130-ml Magenta DesignJet Ink Cartridge, F9J66A
Shipping weight0.25 kg
Package size175 × 86 × 46 mm

Questions about this item

What comes inside the F9J66A box and what must be purchased separately?

The box contains one new HP 728 magenta ink cartridge filled with 300 ml of dye-based ink. The printer itself — such as the HP DesignJet T730 or T830 series — is sold separately.

Should I choose the 300 ml cartridge or one of the smaller sizes?

The 300 ml cartridge is the highest capacity in the HP 728 range and is intended for workgroups that want long unattended print runs; smaller 40 ml to 130 ml cartridges exist for lighter workloads.

How many prints can I expect from the 300 ml volume in a DesignJet T830?

HP does not publish a page-yield figure for this cartridge; the 300 ml volume simply provides more ink for extended printing between replacements in compatible DesignJet models.

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