The HP 21 Black Ink Cartridge is designed to deliver sharp, professional-quality black text and clear graphics with every print. Engineered to work seamlessly with compatible HP printers, this original ink cartridge ensures reliable performance, consistent output, and long-lasting results. Whether for home, office, or school, the HP 21 Black Ink Cartridge provides cost-effective printing without compromising quality.
Key Features:
-
Produces crisp, clear black text and sharp graphics
-
Reliable printing with consistent quality output
-
Easy to install and replace for user convenience
-
Designed for compatibility with select HP DeskJet and PSC printers
-
Delivers long-lasting prints ideal for documents and reports
Technical Specifications:
| Specification | Details |
|---|---|
| Product Name | HP 21 Black Ink Cartridge |
| Model | HP 21 (C9351AA) |
| Ink Type | Pigment-based Black |
| Page Yield | Approx. 190 pages (at 5% coverage) |
| Compatibility | Select HP DeskJet, PSC, and OfficeJet Printers |
| Dimensions | 116 x 36 x 115 mm |
| Warranty | HP Manufacturer Warranty |
FAQ Section:
Q1: Is the HP 21 Black Ink Cartridge compatible with all HP printers?
A1: No, it is compatible only with select HP DeskJet, PSC, and OfficeJet printer models. Always check your printer manual for compatibility.
Q2: How many pages can I print with this cartridge?
A2: The HP 21 Black Ink Cartridge has a page yield of approximately 190 pages at 5% coverage.
Q3: Can this cartridge be refilled?
A3: While refilling is possible, HP recommends using original cartridges for the best print quality and reliability.
Q4: Does this ink cartridge dry out if not used regularly?
A4: Like most ink cartridges, it may dry out if left unused for a long period. Printing regularly helps maintain ink flow.
Q5: Is the HP 21 Black Ink Cartridge covered under warranty?
A5: Yes, it comes with an HP manufacturer warranty against defects in materials and workmanship.






























Reviews
There are no reviews yet.