Brother HL-5170DN is a monochrome (black and white) workgroup laser printer. The print speed of this model is 21 pages per minute with first page out in 10 seconds, which is suitable for a fast paced office environment. The print resolution is 2400 x 600 dpi, which makes each print sharper and clearer. The Brother HL-5170DN has a 300 sheet total input capacity, it includes 1 x 250 sheet paper tray and 1 x 50 sheets multi-purpose tray. It's monthly duty cycle is 3,500 pages. It also features automatic duplex printing, 32 MB of memory, 133 MHz processor, parallel, ethernet and USB connectivity, which makes it ideal for a business environment. The Brother HL-5170DN media types are envelopes, transparencies, labels, plain paper, bond paper and recycled paper. It's media sizes are letter A size, legal, executive, A4, A5, B5, B6 and extra letter. The Brother HL-5170DN uses two toner cartridges and one drum unit, the toner cartridges consist of a standard yield and a high yield toner. The standard yield can print up to 3,500 pages at 5% coverage, while the high yield can print up to 6,700 pages at 5% coverage. The toner cartridge model numbers are TN540 (TN-540) which is the standard yield and TN570 (TN-570) which is the high yield toner. The drum unit model number is DR510 (DR-510), which has a duty cycle of 20,000 pages at 5% coverage.