The Lexmark XM1145 Laser B&W All-in-One Printer is a versatile and efficient printing device that combines printing, scanning, and faxing capabilities in one compact package. With a maximum resolution of 1200 x 1200 DPI and a black print speed of 40 ppm, this printer delivers high-quality black and white documents quickly and accurately. The automatic document feeder (ADF) allows for easy scanning of A4 and A5 sized documents, while the contact image sensor (CIS) ensures precise scanning resolution of 600x600 DPI. Featuring connectivity options like Ethernet and USB, this Lexmark printer is perfect for both home and office use.