what is cardstock

Media Weights Supported, By Paper Path (metric) A4: 60 to 90 g/m²; HP envelopes: 75 to 90 g/m²; HP cards: up to 200 g/m²; HP 10 x 15 cm photo paper: up to 300 g/m². what is cr7 full name and Media Types Plain paper, photo paper, brochure paper, envelopes and other specialty inkjet papers Note the weight limitation for "Card Paper"