Sku : 4ZB78A Print Speed, Black21 - 30 Color Output : Black and white Product Types : Laser printers Family Brand : LaserJet Perfect : For Home Functions : Print only Finished Output Handling : Sheetfed Output Capacity : Up to 100 sheets Maximum Output Capacity (Sheets) : Up to 100 sheets Media Type And Capacity, Tray 1 : Sheets (75 g/m²): 150; envelopes: 10 Paper Handling Input, Standard : 150-sheet input tray Input Capacity : Up to 150 sheets Paper Handling Output, Standard : 100-sheet output bin Standard Output Capacity (Envelopes) : Up to 10 envelopes Maximum Input Capacity (Sheets) : Up to 150 sheets Standard Input Capacity (Envelopes) : Up to 10 Display LED Technology : Laser Number Of Print Cartridges : 1 (black) Replacement Cartridges : HP 105A Black Original Laser Toner Cartridge (1000 yield) W1105A; HP 106A Black Original Laser Toner Cartridge (1000 yield) W1106A; HP 107A Black Original Laser Toner Cartridge (1000 yield) W1107A Power : 110-volt input voltage: 110 to 127 VAC, 50/60Hz Power Consumption Description : 320 watts (Active Printing), 33 watts (Ready), 1.1 watts (Sleep), 0.2 watts (Manual off), 0.2 watts (Auto off/Manual on) Power Supply Type : Internal (built-in) Power Supply First Page Out Black (Letter, Ready) : As fast as 8.3 sec First Page Out Black (A4, Ready)As fast as 8.3 sec First Page Out Black (Letter, Sleep) : As fast as 18 sec (15 min) Duty Cycle (Monthly, Letter)Up to 10,000 pages