HP 37A Black (CF237A) Original LaserJet Toner Cartridge 

Specifications

• Cartridge Models: CF540A (Black), CF541A (Cyan), CF542A (Yellow), CF543A (Magenta)
• Page Yield: Approximately 1,400 pages for black and 1,300 pages for each color (based on 5% coverage on A4 paper, per ISO/IEC 24711 standards; actual yield may vary).
• Color Options: Available in black and tricolor (cyan, magenta, yellow).
• Shelf Life: Typically 18-24 months when stored in a cool, dry place.
• Compatibility: Works with specific HP Color LaserJet Pro models (see list below).
• Quality Standards: Manufactured under ISO 9001 and ISO 14001 certifications for consistent quality and environmental responsibility.