HP LaserJet 5Si MX C3167A Printer 28MB 600dpi 24ppm w/ Jetdirect 10Base-T

HP LaserJet 5Si MX C3167A Printer 28MB 600dpi 24ppm w/ Jetdirect 10Base-T

The HP LaserJet 5Si MX (C3167A) is a high-capacity, workgroup-class laser printer built for heavy-duty office printing. It prints black-and-white pages at up to 24 pages per minute at 600 dpi resolution with 28MB of onboard RAM. This unit includes the HP JetDirect 10Base-T network card installed (RJ-45), enabling direct Ethernet network printing, as well as a Centronics parallel port. The HP LaserJet Cabinet C2975A is also included, fitted with Letter and 11x17 (Ledger) paper trays and a storage compartment on casters. Note: Tray 3 does not print, and there is a crack in the plastic housing — both are documented in the photos.

Specifications & What's Included

• Model: HP LaserJet 5Si MX — Part Number C3167A
• Print speed: Up to 24 ppm (black & white)
• Print resolution: 600 dpi
• RAM: 28MB
• Network interface: HP JetDirect 10Base-T card (RJ-45) — installed
• Parallel interface: Centronics (IEEE 1284)
• Paper sizes: Up to 11 x 17 inches (Ledger/A3)
• Power: 100-120V AC (US model)
• Country of manufacture: United States
• Compatible toner: HP C3909A
• Compatible maintenance kit: HP C3971A (110V) / C3972A (220V)
• Included: HP LaserJet Cabinet C2975A with Letter and 11x17 paper trays, storage shelves, and casters
• Known issues: Tray 3 non-functional; cracked plastic on housing
• No toner cartridge included

Applications

The HP LaserJet 5Si series was introduced in the mid-1990s as a high-volume workgroup printer designed for demanding office environments — law firms, print rooms, corporate departments, and anywhere that needed fast, reliable monochrome laser output at scale. The 5Si MX is the top configuration of the 5Si family, adding a built-in duplexer and expanded paper handling. With support for Ledger/11x17 paper and an HP JetDirect network card, it was a popular choice for finance, architecture, and legal departments that regularly printed large-format documents and needed direct network connectivity before networked printing was a standard feature. The HP JetDirect ecosystem made these printers easy to integrate into Novell NetWare, LAN Manager, and early TCP/IP print environments. Many 5Si units remain in service today in legacy office environments, schools, and small businesses that still maintain PCL 5e print queues or need a proven high-volume laser engine. The C2975A cabinet adds mobility and extra paper capacity, making the system self-contained for a dedicated print station.