he HP Q2436A maintenance kit (110V) is preventive medicine for your HP LaserJet 4300 series printers. Printer components experience similar wear patterns over time, and these components are included in the printer maintenance kit. These maintenance kits are engineered to work with your HP printers to get optimum print quality results and help to eliminate repeat service calls and maximize paper feed quality and performance. This prolongs the service life of the HP LaserJet printer. Maintenance kits are also priced substantially lower than if the same components were purchased individually. HP printer maintenance kits ensure your HP printer remains in working condition and continues providing your workers with the highest print quality possible. Ensures optimum print quality. Ensure your HP printer stays up and running.