I AM USING THIS HP LASER JET 400 SERIAL IS VERY GOOD PRINT QUALITY AND ALSO ECONOMY PER PRINT COST .NO PAPER JAM COMPLAINT GOOD FOR OFFICE WORK . HORIZONTAL AND VERTICAL PRINT FIRST PRINT TAKE A TIME FOR ENGINE WORMING I LIKE THIS PRINT QUALITU EASY INSTALL AND KEEP IN OFFICE TABLE AND ALSO CARRYY EASILY PLACE TO PLACE .