Perfect for home or home office use, the HL-2140 is an affordable, monochrome laser printer. It features fast printing at up to 23 pages per minute, high-quality output, flexible paper handling via an enclosed 250-sheet capacity tray and a manual by-pass slot for printing envelopes and letterhead. In addition, the printer's space-saving design will help maximize your desk or shelf space. Paper Handling Input capacity - Up to 250 sheets input Tray Single-sheet manual bypass Multi-purpose Tray Output Paper Capacity - Up to 100 sheets GDI Emulation Supported Paper Sizes - Letter, Legal, Executive, A4, A5, A6, B5, B6, Folio, Envelopes (COM 10, DL, C5, Monarch) Supported Media Type - Plain, Bond, Labels, and Transparency Supported Media Weight - Main Tray 16 to 28 pounds; Multi-purpose Tray 16 to 43 pounds Recommended monthly volume - 250 to 2,000 pages Supported operating systems - Windows Vista/XP/XP Pro x64/2000/ Server 2003/2003 x64, Mac OS X 10.2.4 or greater and Linux Red Hat, Mandrake, SuSE, Debian System Requirements - CD-ROM or DVD-ROM drive, USB port and USB cable Approximate Unit Dimensions - 14.5(W) x 14.2(D) x 6.7(H) Approximate Unit Weight - 15.0 pounds