Print Speed: 25 ppmHP Pro Res: 1200 x 1200 dpiPost Script 2 EmulationProcessor: 250 MHz RISCFirst page out: 12 seconds"RIP ONCE" capability with 32 MB or hard disk optionsEconomode for improved print quality over regular dpi selections 600 x 600 dpi at engine speedTypefaces: 110 scalable TrueType (TM) fonts (80 built-in), 30 via HP Fontsmart; all PCL and PostScript accessibleHP Fontsmart software for easy-to-use font management capabilitiesIntellifont and built-in TrueType rasterizersMemory Options: 16 MB SDRAM Standard (4100) 32 MB SDRAM Standard (4100n, 4100tn, 4100dtn)All upgradable to 256 MB of SDRAM memoryOptional Memory (SDRAM DIMMs): C7842A - 8MB, C7846A - 16MB, C7845A - 32MB, C7846A - 64MB, C9121-67901 or C9121A - 128MBMass Storage Options: C4286A - 2MB Flash DIMM, and C4287A - 4 MB Flash DIMM J6054-61001 - 5 GB EIO hard diskExpansion Slots: HP LaserJet 4100 printer: Two open EIO expansion slots optional HP and third-party accessories.HP LaserJet 4100n, 4100tn, and 4100dtn printers: One open EIO expansion slot for optional HP and third-party accessoriesInterface: HP LaserJet 4100 printer: Bidirectional IEEE 1284-compliant parallel interfaceHP LaserJet 4100N, 4100TN, and 4100DTN printers: Bidirectional IEEE 1284-compliant parallel interface J4169A - HP Jetdirect 610n (EIO) internal print server for Ethernet 10/100Base-TXAutomatic switching between languages and portsHP Web Jetadmin requires installation on one of the following network servers: Microsoft Windows NT, IBM OS/2 Warp, HP-UX, or Solaris C4103A - HP fast infrared port and receiver (optional)Networking: J3110A - Ethernet (10Base-T) J3111A - Ethernet (10Base-T, 10Base2) and LocalTalk J4167A - Token Ring J4169A - Fast Ethernet (100Base-TX) and Ethernet (10Base-T) J4135A - HP Jetdirect connectivity card for USB, serial, and LocalTalk connections C4103A - HP Fast InfraRed (FIR) ReceiverPaper Trays: Up to four input bins, 1,600-sheet total capacityHP LaserJet 4100 and 4100n printers: Tray 1: 100-sheet/10-envelope multipurpose tray for automatic and manual feeding of envelopes, labels, transparencies and other special media; 3 x 5 in to legal size Tray 2: 500-sheet input tray for letter, A4 through legal, and custom sizesHP LaserJet 4100tn and 4100dtn printers: Tray 1: 100-sheet/10-envelope multipurpose tray for automatic and manual feeding of envelopes, labels, transparencies and other special media; 3 x 5 in to legal size Tray 2 and Tray 3: 500-sheet input tray for letter, A4 through legal, and custom sizes Optional 500-sheet Tray 4: Supports all sizes from A5 to legal and custom sizesPaper Path: Straight-through paper path from Tray 1 to rear output bin or to top output binOutput Capacity: 300-sheet standard output capacity (250-sheet face-down, 50-sheet face-up).Note: The bin-full sensor only applies to the 250-sheet top output bin.Paper Handling Options: HP 4100 - C8053A - 75-sheet envelope feeder C8054A - Automatic duplex unit (for two-sided printing) C8055A - 500-sheet paper feeder: supports all sizes from A5 to legal and custom sizes C8056A - 500-sheet universal trayHP Jetassist connector for easy installation of other paper handling accessoriesDuty Cycle: Up to 150,000-page-per-month duty cycleCompatibility: Microsoft Windows 3.1x, 95, 98, NT 4.0, 2000, XP, HP-UX, Solaris, SunOS, IBM, OS/2 Warp, Macintosh OS 7.5, and MS-DOS (R).Dimensions: (W x D x H) 4100/4100n/4100tn: 13.6 x 15.3 x 19.9 in. (41.1 in. w/ trays/rear output bin open) 4100dtn: 13.6 x 15.3 x 21.2 in. (41.1 in. w/ trays/rear output bin open) Weight: 4100: 17 kg (37.5 lb) 4100n: 17.5 kg (38.5 lb) 4100tn: 19.3 kg (42.5 lb) 4100dtn: 23.9 kg (52.5 lb) Professionally Packed With "Sealed Air" Instapak Foam Packaging90 Day Warranty