HP Officejet J4550 All In One Printer AIO Functions: Color printing, color copying, color scanning, color faxing Print Technology: HP Thermal Inkjet HP Real Life Technologies: Features HP Adaptive Lighting, HP Auto Red-eye Removal Print Speed: Black: Up to 28 ppm; Color: Up to 22 ppm; 4x 6 photo: As fast as 26 sec Up to 600 x 600 dpi rendered dpi black; Color: Up to 4800 x 1200 dpi optimized on select HP photo papers with 1200 x 1200 input dpi