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Technical Specifications
OEM Part Number Code CE251A (HP 504A Series Bracket)
Consumable Color Vibrant Chromatic Cyan
Print Technology Laser Electrophotographic System with ColorSphere Technology
Page Yield Capacity Approximately 7,000 standard pages (Calculated at strict average composite cyan/magenta/yellow ISO/IEC 19798 standards)

Technical Specifications
OEM Part Number Code CE401A (HP 507A Series Bracket)
Consumable Color Vibrant Chromatic Cyan
Print Technology Laser Electrophotographic System with ColorSphere Technology
Page Yield Capacity Approximately 6,000 standard pages (Calculated at strict average composite cyan/magenta/yellow ISO/IEC 19798 standards)

Technical Specifications
Category Specification
OEM Part Number Code Q7551A (HP 51A Series)
Consumable Color Deep Monochromatic Black
Print Technology Precision Laser Electrophotographic System

Technical Specifications
Category Specification
OEM Part Number Code CE255A (HP 55A Series)
Consumable Color Deep Monochromatic Black
Print Technology Precision Laser Electrophotographic System
Page Yield Capacity Approximately 6,000 standard pages (Calculated at strict 5% ISO/IEC 19752 coverage standards)

Key Product Features

• Laser-Quality Text Clarity: Loaded with specialized high-density black pigment particles that bind perfectly to plain copy sheets, delivering sharp character margins without feathering.

• Advanced Smudge & Water Resistance: Formulated with a rapid-drying chemical carriage vehicle that locks down almost instantly on exiting the paper path, keeping text secure from highlighters.

• Independent Multi-Tank Economy: Designed as a single, modular color channel, allowing you to swap out only the depleted black tank without disturbing your remaining active color reservoirs.

Technical Specifications
OEM Part Number Code CF256A (HP 56A Series)
Consumable Color Deep Monochromatic Black
Print Technology Precision Laser Electrophotographic System

Key Features

• Dual-Drop Weight Precision Engineering: Dynamically scales droplet sizing down to 13.8 picoliters, balancing deep, solid black fills with fine detail definition along micro-fonts.

• Fade-Resistant Pigment Chemistry: Loaded with deep-tint black pigments engineered to bind instantly to plain fibers, resisting highlighting streaks and preventing atmospheric yellowing over decades.

• Natively Integrated 336-Nozzle Printhead: Built with a factory-calibrated micro-nozzle matrix directly on the cartridge chassis. Every swap completely refreshes your mechanical delivery system to stop horizontal lines or banding.

Key Product Features

• Vivid Dye-Based Micro-Inks: Loaded with premium cyan, magenta, and yellow dye formulas engineered to blend beautifully, creating up to 16.5 million color combinations in every photograph.

• Precision Dual-Drop Weight Technology: Dynamically scales droplet sizes between 1.3 pL and 4.7 pL to capture fine image details, crisp text margins, and smooth skin-tone gradations without graininess.

• Natively Integrated Printhead Matrix: Built with a factory-calibrated micro-nozzle grid directly on the cartridge chassis. Every swap completely refreshes your mechanical delivery system to prevent color streaking or banding.

Key Product Features

• Laser-Sharp Text Definition: Loaded with high-stability pigment black ink that locks onto plain copy paper instantly, preventing ink feathering and ensuring excellent contrast.

• Smudge & Highlight Resistance: The quick-drying chemical formula is optimized to resist water drops and highlighter pens, making it ideal for business documents and school notes.

• Built-In Printhead Grid: Features a factory-calibrated 336-nozzle micro-printhead directly on the cartridge chassis. Replacing the cartridge completely refreshes your printing mechanism to prevent horizontal line banding.

Technical Specifications
OEM Part Number Code C8061X (HP 61X High-Yield Series)
Consumable Color Deep Monochromatic Black
Print Technology Precision Laser Electrophotographic System
Page Yield Capacity Approximately 10,000 standard pages (Calculated at strict 5% ISO/IEC 19752 coverage standards)

Key Product Features

• Laser-Quality Pigment Black: Loaded with premium, highly stable pigment-based black ink that binds deeply into paper fibers instantly to eliminate feathering or ink bleeding.

• Smudge and Fade Resistance: The quick-drying chemical composition resists water drops and standard highlighter pens, providing reliable security for office contracts and academic notes.

• Refreshable Built-In Printhead Matrix: Features a factory-calibrated 588-nozzle micro-printhead integrated directly onto the cartridge chassis. Swapping the cartridge fully replaces the delivery system, stopping horizontal line banding or dry clogs.

Key Product Features

• Vivid Dye-Based Color Formulation: Packaged with premium cyan, magenta, and yellow dye formulas that mix perfectly to generate up to 16.5 million bright color variations in photographic media.

• Active Ink Balancing Technology: Features an automated system that monitors color usage across document pages, adjusting output dynamically to maximize fluid performance and prevent premature empty states.

• Integrated Nozzle Firing Grid: Houses a factory-calibrated 588-nozzle printhead array directly on the cartridge frame. Replacing the cartridge completely refreshes your printing mechanism to instantly solve horizontal lines or banding.