DELL 1135n, Laser, Mono printing, 1200 x 1200 DPI, Mono copying, Mono scanning, A4 DELL 1135n. Print technology: Laser, Printing: Mono printing, Maximum resolution: 1200 x 1200 DPI. Copying: Mono copying, Maximum copy resolution: 1200 x 1200 DPI. Scanning: Mono scanning, Optical scanning resolution: 4800 x 4800 DPI. Faxing: Mono faxing. Maximum ISO A-series paper size: A4