HP 712 3ED70A Black Ink Cartridge 38 ml

Genuine HP 712 38 ml Black Ink Cartridge

This genuine HP 712 cartridge delivers 38 ml of pigment-based black ink for HP DesignJet large-format plotters. It fits the T250, T230, T650 and T630 series printers used for technical drawings and plans. The supply is new and engineered to protect the printhead while maintaining warranty coverage. Professionals needing reliable monochrome output on plain paper will find it suitable.

Consistent output during extended print runs

Pigment-based formulation resists fading and water exposure, producing durable lines that meet ISO permanence standards. Internal testing shows up to 31 percent more accurate lines compared with a competitor model, reducing miscommunication on detailed drawings. The ink maintains line quality across long jobs without the density drop-off sometimes seen in short-burst printing. Archivability reaches 100 years on plain paper under proper storage.

Stable operation within rated environmental range

Cartridge functions reliably between 41 and 95 degrees Fahrenheit at 10 to 90 percent relative humidity. Storage tolerance spans -40 to 140 degrees Fahrenheit at the same humidity band, preventing ink degradation before installation. No additional power or cooling considerations apply beyond the printer's own specifications. The design avoids leaks or clogging that would interrupt workflow or increase waste.