HP Mono Laserjet MFP M137FNW Printer

Hp mono laserjet mfp m137fnw printer functionsprint, copy, scanprint speed black (iso, a4)up to 20 ppm 1first page out black (a4, ready)as fast as 8.3 sec 2duplex printingmanual (driver support provided)duty cycle (monthly, letter)up to 10,000 pages 3 (duty cycle is defined as the maximum number of pages per month of imaged output.)duty cycle (monthly, a4)up to 10,000 pages 3 (duty cycle is defined as the maximum number of pages per month of imaged output.)