HP LASERJET MFP M442DN PRINT, COPY, SCAN TO 24 PPM ; BLACK (A3, NORMAL): UP TO 12 PPM, MONTHLY DUTY CYCLE: UP TO 50,000 PAGES PER MONTH (A4); RECOMMENDED MONTHLY PAGE VOLUME: 2,000 TO 5,000.350 SHEETS (STANDARD); 600 SHEETS (MAXIMUM) WITH THE OPTIONAL 250-SHEET TRAY AS SERVICE PART ONLY, OUTPUT CAPACITY: 250 SHEETS, BUILT-IN ETHERNET NETWORKING. AUTOMATIC DUPLEX PRINTING AND COPYING. MEMORY 128MB.SUPPLIES: W1335A HP 335A; W1335X HP 335X