Model name HP Color LaserJet Pro M155a Ports Hi-Speed USB 2.0 port Memory 128 MB DDR, 128 MB NAND Flash Print technology Laser Print resolution (best) Up to 600 x 600 dpi Maximum print area (metric) 206 x 346 mm Monthly duty cycle Up to 30,000 pages Print languages HP PCL 6, HP PCL 5c, HP postscript level 3 emulation, PCLm, PCLm-S; PWG Raster; PDF, URF Printer smart software features HP Auto-On/Auto-Off technology Input capacity Up to 150 sheets (15 mm stack height) in Tray 1 Standard input capacity (envelopes) Up to 15 mm (Recommended only 5 Envelopes or less at a time) Output capacity Up to 100 sheets (10 mm stack height) Media sizes supported (metric) Letter; Legal; Executive; Oficio; 4 x 6; 5 x 8; A4; A5; A6; B5 (JIS); B6 (JIS); 10x15cm; Oficio; 16K; 16K; 16K; Postcard (JIS); Double Postcard (JIS); Envelope #10; Envelope Monarch; Envelope B5; Envelope C5; Envelope DL; A5-R Media sizes supported (U.S. standard) Letter; Legal; Executive; Oficio; 4 x 6; 5 x 8; A4; A5; A6; B5 (JIS); B6 (JIS); 10x15cm; Oficio; 16K; 16K; 16K; Postcard (JIS); Double Postcard (JIS); Envelope #10; Envelope Monarch; Envelope B5; Envelope C5; Envelope DL; A5-R Media sizes, custom (metric) 76 x 127 to 216 x 356 mm Media sizes, custom (U.S. standard) 3 x 5 to 8.5 x 14 in Media types Paper (bond, brochure, colored, glossy, heavy, letterhead, light, photo, plain, preprinted, prepunched, recycled, rough), transparencies, labels, envelopes, cardstock Media weight supported (metric) 60 to 163 g/m² (Uncoated/Matte, recommended), however up to 175 g/m² Postcards and 200 g/m² HP Matte is allowed in the driver; 60 to 163 g/m² (Coated/Glossy, recommended) , however up to 175 g/m² Postcards and 220 g/m² HP Glossy is allowed in the driver. Replacement cartridges (AMS APJ) HP 215A Black LaserJet Toner Cartridge (~1050 yield) W2310A; HP 215A Cyan LaserJet Toner Cartridge (~850 yield) W2311A; HP 215A Yellow LaserJet Toner Cartridge (~850 yield) W2312A; HP 215A Magenta LaserJet Toner Cartridge (~850 yield) W2313A
