The HP 126A (CE314A) is the original HP LaserJet imaging drum for HP's compact colour laser printers: the Color LaserJet CP1025, LaserJet Pro 100 color MFP M175, Color LaserJet Pro MFP M176n and M177 series, and LaserJet Pro 200 color MFP M275. In these printers the imaging drum is a separate consumable from the four toner cartridges, and a single drum serves all four colours (black, cyan, magenta and yellow). When the printer reports that the drum is low or print quality shows repeating marks, streaks or faded areas that a new toner cartridge does not fix, the drum is due for replacement. HP designs it to work with its 126A toner cartridges and toner formulation for consistent, sharp text and graphics in home offices and small businesses. The box contains the imaging drum and a recycling guide; used drums can be returned through HP Planet Partners where available. The cartridge measures roughly 363 x 92 x 160 mm packed and weighs about 500 g. Store between 0 and 35 degrees C and install without touching the drum surface.