Accurate color, precise image reproduction, and crisp, sharp text every time you print. Chemically-grown toner formulas in HP 641A LaserJet Toner Cartridges deliver consistent results and reliable performance throughout the life of the cartridge.

Get consistently accurate color and precise images with HP LaserJet toner cartridges. HP chemically-grown toner formulas are designed together with the LaserJet printing system. The uniform size and spherical shape of HP toner particles ensure a broad range of colors, precise particle control and placement, and reliable performance. With HP's second generation toner, you get consistently accurate color and crisp, sharp text across a broad range of plain papers and HP plain and specialty papers.

Powerful results with new image mode feature[2]

Smart Printing technology in HP 641A LaserJet Toner Cartridges and your printer monitors the environment, sensing temperature and humidity.[2] To ensure consistent print quality, the system makes continuous, automatic adjustments to particle charge.These dynamic electrophotographic adjustments optimize color density, calibration and consistency to produce high quality results over the life of the cartridge.[1]

Save time and lower overall printing costs with high-yield, all-in-one HP LaserJet toner cartridges. HP's #1 rated service and reliability means less time wasted on printing problems, higher productivity, and more cost-effective printing.

Cost-effective, reliable operation comes with HP Color LaserJet printing supplies. HP 641A LaserJet Toner Cartridges are designed together with the printer to provide fast, reliable operation. The high-yield, all-in-one supplies design provides time-saving operation with fewer supplies to order and maintain. For further time savings, HP toner formulas are engineered to support in-line printing and fast fusing at lower temperatures for fast warm-up time and a quick first page out.

Reliable print quality with Smart Printing system technology[1]

To keep your productivity high, HP designs in reliability to maximize uptime. HP is an industry-leader in research and development, design, manufacturing and testing processes. Original HP toner cartridges undergo rigorous testing including tests under extreme usage and environmental conditions.

Count on consistently high quality results. Precise matching of components in the HP LaserJet printing system optimizes the performance of HP toner, toner cartridge and printer architecture, Smart Printing system technology and color-calibration software. Precise matching achieves precision print quality.[1]