Hp Laserjet 135a the laser printer for a4 paper is a useful device in your house and office. You'll use this hp laserjet 135a printer to print both texts and documents that are sharp and show the smallest detail. The hp laser printer reaches a resolution of 1200 dpi and has a very fast black and white printing speed of 20 pages/min. Because of its compact multifunctional design, the hp laserjet 135a is also cable of copying, printing and scanning. Since laser printers are more economical than inkjet printers when it comes to printing of a large number of black-and-white documents and copies, it is better to use them when compared to other types of printers.