Based on 3 r/BuyItForLife mentions

LaserJet 4100tn B/W Laser Printer

$389.00

HP

The HP 4100N network printer delivers class-leading value, productivity and features. The HP LJ 4100 n Laser Printer can produce an amazing 24 pages per minute, and also can print high-resolution documents. HP 4100 n Laser Printer will help you save time with intelligent printer-management and a paper capacity of 600 sheets.

Reddit mentions

  • “4100tn is a workhorse of a printer. I can't speak for the newest HPs but pre 2010 lasers were tanks and ultra reliable. We will see if my M47dn lasts as long as my old 4M Plus. I…”
  • “I bought 4 of [these (Amazon link)](https://www.amazon.com/HP4100TLTRI6-HP4100TLTRI-24-Ounce-Tritan-Hydration/dp/B00DPLUCS6) and have been putting them through the ringer for 3…”
  • “My 90s era HP LaserJet 4100DN is still cranking along. I just hit 200,000 pages and time for it's first maintenance kit.”
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Product details
Supported Functions
Print
Color Output
No
Paper Size
76 - 127 mm (Custom media sizes)
Paper Type
Transparencies, Card, Labels, Paper (bond), Paper (colour)
Auto Duplex Printing
Yes, Duplex, Optional duplex
Paper Tray Capacity
3 (Standard input trays)
Input Capacity
1600 sheets (Maximum)
Output Capacity
300 sheets (Total)
Printing Technology
Laser
Output Type
Monochrome
Ink Type
Laser toner
Number of Cartridges
1
Depth
19.9 in
Height
18.3 in
Weight
25 kg
Width
15.4 in
Connectivity Type
Ethernet 10Base-T/100Base-TX - RJ-45, 1284 (EPP/ECP) - Centronics 36-pin
System Compatibility
ibm os/2 warp, autocad rel 12/13/14, macintosh system 7.5.3 +, microsoft windows 2000, microsoft windows 3.x
Mobile Printing
Wireless walk-up printing from PDAs, laptops, and even digital cameras (via HP fast IR receiver)
Network Type
Wired
Print Server
Embedded web server
Network Protocols
TCP/IP, IPX/SPX, NetBEUI/NetBIOS
Design Type
Workgroup printer
Touch Screen
No
Display Type
Two-line backlit LCD display, Status LCD
Mono Print Speed
24 ppm (black, normal quality, A4/US Letter)
Max Mono Resolution
1200 x 1200 DPI
Time To First Print
12 s (black, normal)
Duty Cycle
150000 pages per month (maximum, letter size)
Consumable Yield
6000 pages (Cartridge / Printhead Duty Cycle)
Business Size
Workgroup
Top Use Cases
Document printing
Typical Users
Business users, Workgroup
Workgroup Size
Workgroup
Included Accessories
Printer cable, Drivers & Utilities, HP FontSmart
Durability Features
Heavy-duty paper tray (1100-sheet)
Memory Capacity
32 MB (Internal memory)
Drivers
PostScript 3, PCL 5E, PCL 6
Power Consumption
385 W (printing)
Power Source
220 - 240 v (+/-10%) 50/60 hz (+/-2 hz)
Noise Level
58 dBA
Highlighted Features
Built-in processor, Embedded web server, Energy Star certified
EPEAT Rating
Energy Star certified