HP Office Paper - A4 (210 x 297 mm) - 80 g/m² - 500 sheet(s) plain paper - for ENVY 50XX; LaserJet Pro MFP M148, MFP M427; Officejet 80XX; Photosmart B110, Wireless B110. Enjoy HP reliability at a great value in a paper you can use in every type of office equipment. Specifically engineered to reduce the dust build-up that can cause paper jams and equipment downtime, saving you time and money while making your office more productive. HP Office Paper incorporates HP's proprietary ColorLok technology that helps reduce smears while producing bolder blacks and uniform, vivid colors, and is extra bright (92) and white (CIE 146) for sharp, high-contrast images.