The Brother HL-L6400DWX is a fast desktop laser printer made for the busy office. This monochrome machine reaches speeds of 52 pages per minute, making it a workhorse that will keep up with heavy demands. The monthly duty cycle max on the Brother HL-L6400DWX is rated at 50,000 impressions, with the recommended monthly volume at 10,000 impressions. Paper handling is versatile on the Brother HL-L6400DWX. Standard paper storage starts with 2 paper sources and a 570-sheet capacity; this can be increased with additional paper sources being purchased to the maximum of 2,650 sheets. Black toner (TN-850) for the Brother HL-L6400DWX comes in an extra high-yield option with the approximate page yield of 12,000 pages.