Our take
The Lexmark E240n part 28S0400 is a monochrome print-only laser printer for a small office that wants a wired queue. Lexmark rates it up to 27 pages per minute on Letter and lists Ethernet 10/100, USB 2.0 and bidirectional parallel interfaces. The standard paper tray holds 250 sheets, with a 550-sheet drawer offered separately. This mix gives the E240n more network flexibility than a direct-USB-only desktop model, but the page does not establish built-in Wi-Fi or standard automatic duplex. Lexmark marks the product discontinued, so current supply, driver compatibility and the condition of any offered unit remain purchase checks.
A wired desk or small office that needs a simple black-only printer and can verify legacy drivers, supplies and the exact used unit..
Choose another printer if you need confirmed Wi-Fi, a current supported platform, color output, copy or scan functions, or standard automatic duplex printing.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- Lexmark rates the exact E240n up to 27 ppm on Letter and lists three standard connection types.
- A 250-sheet input tray supports ordinary shared work without requiring frequent small-stack reloads.
- The optional 550-sheet drawer gives a confirmed expansion path when the base tray is too small.
What to weigh up
- The standard interfaces are wired; built-in wireless is not listed for part 28S0400.
- Automatic duplex is not confirmed by the cited model page, so two-sided output needs separate verification.
- The product is discontinued and its 15,000-page maximum monthly volume is not a recommended workload range.
The key details
| Model covered | E240n (28S0400) |
|---|---|
| Main functions | Print only |
| Print output | Monochrome laser; up to 27 ppm Letter |
| Two-sided printing | Ethernet, USB and parallel; automatic duplex not confirmed |
Performance figures are manufacturer claims. Source checked October 7, 2026. Regional models and included accessories can differ.
What the features mean for you
A narrow role for black-only jobs
Lexmark identifies the E240n as a monochrome laser printer and lists printing rather than copy, scan or fax functions. That makes it a fit for an office that already has a separate device for document capture. Its 27 ppm Letter rating gives a useful comparison point against slower personal printers, but it is a manufacturer rating rather than a promise about a particular used machine. If the routine includes color pages or frequent intake of paper originals, a multifunction or color model is a better match.
Ethernet is the meaningful suffix difference
The E240n's standard ports include 10/100BaseTX Ethernet, USB 2.0 and bidirectional parallel. Ethernet lets several workstations send jobs over a wired network, while USB and parallel offer local routes for older computers or direct setup. The source does not list built-in Wi-Fi. Lexmark's naming guide uses n for network, so this exact model is distinct from an E240 without that suffix; do not treat a broad E240 family search as proof that a listing includes the network-equipped 28S0400 configuration.
The base tray and optional drawer serve different queues
Lexmark lists 250 sheets in the integrated paper tray and a separate optional 550-sheet drawer. The base capacity can be enough for a desk or a lightly shared queue, while the extra drawer reduces reload interruptions when several people send longer jobs. That accessory is not standard, so its presence must be checked on the specific listing. The maximum 800-sheet capacity assumes the optional drawer is installed; do not describe that total as the out-of-box configuration.
Treat duplex as an open specification
The reviewed Lexmark specification page does not establish standard automatic duplex for the E240n. A buyer who prints packets on both sides should not assume that the n network suffix also signals a duplexer; Lexmark's own naming guide identifies d as the duplex designation. Since the exact product is discontinued, confirm the physical product label and any installed accessory before counting on automatic page turning. Manual page handling may be possible in a driver, but that is not the same as a built-in automatic duplex unit.
Check support and the offered machine separately
Lexmark marks the E240n discontinued. Its page's 15,000-page figure is a maximum monthly volume, not a recommendation for routine use, so the matching profile leaves recommended minimum and maximum values unknown. Historical Amazon identification is not proof that a current search result is the same part or that the unit works. Ask for the label showing 28S0400, a print sample, tray and cable details, and return terms. Check that the computer's operating system has a usable driver before relying on this older platform.
What else to compare
The Brother HL-2040 is a simpler direct-connect option; the Lexmark MS517dn adds documented automatic duplex and a much higher recommended workgroup range.
Before you buy
Does the Lexmark E240n have Ethernet?
Yes. Lexmark lists standard 10/100BaseTX Ethernet alongside USB 2.0 and bidirectional parallel.
Is built-in Wi-Fi documented for the E240n?
No built-in wireless interface is listed in the reviewed specification for part 28S0400.
Can the E240n print automatically on both sides?
The cited product specification does not confirm a standard automatic duplexer, so verify the exact unit before relying on it.
Where can I check the current price?
Use the Amazon link for current offers. Check the exact model, seller, product condition, delivery, and return terms. This page does not display a live price or confirm stock.
Sources & review basis
We use the following manufacturer documentation for the product features above. Our suitability notes and buying advice are editorial judgments based on those features, not measured performance results.
- Lexmark U.S. E240n part 28S0400 product page and specifications ↗ — checked October 7, 2026.
- Lexmark U.S. E240n part 28S0400 page: print speed, paper handling, ports, model status and maximum duty volume ↗ — checked October 7, 2026.
The decision
Choose the E240n for wired monochrome printing when its three ports and optional tray fit the setup. Discontinued status, Wi-Fi, duplex and present unit condition require separate checks.
Is it the right fit?
Check the exact model and today’s offers on Amazon.