The HP 935 Cyan Original Ink Cartridge (C2P20AE) is a genuine HP pigment-ink cartridge for HP OfficeJet and OfficeJet Pro printers that use the 935 cartridge family, including the OfficeJet Pro 6230 and the OfficeJet 6820, and the OfficeJet Pro 6800-series machines named by the supplier. Pigment inks resist smudging and fading, which makes them well suited to business documents and colour charts. The cartridge holds 4.5 ml of cyan ink and has a standard yield of about 400 pages; the 935XL version is available for higher-volume users. HP specifies operation between 15 and 35 degrees Celsius and storage between 0 and 45 degrees Celsius. Like other HP originals, it works with HP's low-ink alerts, and empty cartridges can be returned through HP Planet Partners where available. It weighs about 30 g.