Functions Print speed black (ISO, A4)Up to 29 ppm Print speed duplex (A4)Up to 18 ipm First page out black (A4, ready)As fast as 7 sec Duty cycle (monthly, A4)Up to 20,000 Recommended monthly page volume 200 to 2,000 Number of users 1-5 users Print technology Laser Print quality black (best)Up to 600 x 600 dpi Processor speed 500 MHz Print languages PCLmS; URF; PWG Print colors No Number of print cartridges 1 (black) Mac compatible Yes Paper handling input, standard 150-sheet input tray Paper handling input, optional Input capacity Up to 150 sheets Maximum input capacity (sheets)Up to 150 sheets Paper handling output, standard 100-sheet output tray Paper handling output, optional Output capacity Up to 100 sheets Maximum output capacity (sheets)Up to 100 sheets Duplex printing Automatic (standard) Paper trays, standard 1 Paper trays, maximum 1 Envelope Feeder Yes, 10 Media sizes supported A4; A5; A6; B5 (JIS) Media sizes, custom 101.6 x 152.4 to 216 x 356 mm Media type Paper (laser, plain, rough, vellum), envelopes, labels, cardstock, postcard Media weight, supported 60 to 163 g/m² Replacement Cartridge for HP 136A Black LaserJet Toner Cartridge, W1360A (~1150), HP 136X Black LaserJet Toner Cartridge, W1360X (~2600).