Table 1-2. Comparison of HP LaserJet 4000 Series Printers (continued) HP LaserJet 4000 HP LaserJet 4000 T HP LaserJet 4000 N HP LaserJet 4000 TN 1 GB EIO Drive optional optional optional optional Envelope feeder available available available available LocalTalk optional optional standard standard 10Base-2 optional optional optional optional Duplexer optional optional optional optional 1-4 Printer Description EN