HP Laser 135w. Print technology: Laser, Printing: Mono printing, Maximum resolution: 1200 x 1200 DPI. Copying: Mono copying, Maximum copy resolution: 600 x 600 DPI. Scanning: Mono scanning, Optical scanning resolution: 4800 x 4800 DPI. Maximum ISO A-series paper size: A4. Wi-Fi. Product colour: Gray, White Replacement Catridges: HP 105A; HP 106A; HP 107A