Our take
The Lexmark MS321dn is a monochrome print-only printer aimed at a wired small-workgroup routine. Lexmark documents up to 38 ppm Letter, integrated duplex, 350-sheet standard input, Gigabit Ethernet and a 500–6,000 page recommended monthly range. Those figures make it easier to compare with home-class printers that provide no workload guidance. The trade-off is lifecycle: Lexmark labels the model discontinued. Choose it when the volume and wired connection fit, and only after checking the exact unit and replacement supplies.
A wired small workgroup that prints monochrome packets regularly and can verify the used unit and supply situation..
Avoid it if you need copy, scan, fax, built-in Wi-Fi, or a currently listed Lexmark model with a confirmed new-unit offer.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- Lexmark lists automatic duplex and a 350-sheet standard input for part 36S0100.
- The 38 ppm Letter rating and 500–6,000 page recommended range support workgroup comparison.
- Gigabit Ethernet and USB 2.0 are documented standard ports.
What to weigh up
- The MS321dn is print-only and cannot handle copy or scan work.
- The official standard-port list does not include built-in Wi-Fi.
- Lexmark marks the model discontinued; present supplies and the condition of a used unit are unknown.
The key details
| Model covered | MS321dn / 36S0100 |
|---|---|
| Main functions | Print only |
| Print output | Monochrome; up to 38 ppm Letter / 36 ppm A4 |
| Two-sided printing | Automatic duplex; Gigabit Ethernet |
Performance figures are manufacturer claims. Source checked October 4, 2026. Regional models and included accessories can differ.
What the features mean for you
Designed around regular monochrome output
Lexmark presents the MS321dn as a monochrome laser printer rather than a multifunction device. Its 38 ppm Letter and 36 ppm A4 ratings describe a faster print engine than compact personal printers, while the 500–6,000 page range is the manufacturer's recommended monthly volume. That range is more useful than the maximum duty-cycle figure when a buyer estimates ordinary use. If an office needs scanning or fax, this exact model does not provide those tasks; choose an MFP rather than assuming a network printer can capture paper documents.
Automatic duplex and standard input reduce interruptions
Lexmark specifies integrated automatic duplex and 350 sheets of standard input, split between a 250-sheet tray and a 100-sheet multipurpose feeder. Automatic page turning helps with the two-sided memos and reports that often fill a shared office queue. The extra feed path can keep letterhead, envelopes or a second paper type ready, subject to Lexmark's media limits. It is a more capable base supply than a 250-sheet tray, though the printer remains a single-function output device and cannot replace a copier or scanner.
A wired connection, with no built-in Wi-Fi listed
The official specifications list Gigabit Ethernet and USB 2.0 as standard ports. That works well when IT wants a fixed wired location or a single direct-connected workstation. Lexmark does not list Wi-Fi among the standard ports for the MS321dn, so a wireless requirement should not be inferred from an optional adapter available for another model. If the printer will sit in a shared area, confirm that the network policy and driver support are compatible before purchase; the manufacturer's port table only describes the printer's interface options.
Compare its volume guidance with the Dell B1260dn
The Dell B1260dn is another mono duplex printer with Ethernet, but Dell's saved brochure describes a 300–500 page typical monthly volume rather than a recommended range. Lexmark provides a 500–6,000 page recommendation and a faster Letter speed. These are different kinds of evidence, so the Dell's typical volume should not be treated as directly interchangeable with Lexmark's guidance. The Brother HL-5150D offers automatic duplex and a 300-sheet standard paper combination but needs an optional network interface for Ethernet. This model wins when its documented connection and workload match the office.
Discontinued status changes the purchase checklist
Lexmark's regional product page labels the MS321dn discontinued. That is a lifecycle fact, not a statement that a particular seller's unit is unavailable or defective. It also does not establish whether toner, imaging components or service parts are currently easy to buy. Before selecting a used example, request its model label and included supplies, confirm local consumable fit, and read the return terms. The old Amazon item in the research packet returned an internal error, so the affiliate destination is a tagged exact-model search rather than a direct ASIN claim.
Keep the exact suffix in view
Lexmark's official product page maps part 36S0100 to MS321dn. The d suffix belongs to the duplex model, while other members of the MS family can differ in networking or paper options. The guide therefore keeps the recommendation tied to MS321dn and does not borrow wireless or extra features from an MS421dn or a bundled configuration. Buyers comparing listings should check the part number, standard ports and installed trays before relying on a seller's shortened family title. Current offers, condition, and consumable stock remain listing-specific unknowns.
What else to compare
The Dell B1260dn is a wired duplex alternative with a lower typical-volume statement, while the Brother HL-5150D includes automatic duplex but needs an optional Ethernet card.
Before you buy
Does the MS321dn include automatic two-sided printing?
Yes. Lexmark lists integrated automatic duplex as a standard feature of the exact MS321dn.
What workload does Lexmark recommend?
Lexmark gives a recommended monthly page volume of 500 to 6,000 pages for this model.
Is the MS321dn a current Lexmark product?
Lexmark's regional product page labels the exact MS321dn discontinued; that does not establish today's offer or supply availability.
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 MS321dn official specifications ↗ — checked October 4, 2026.
- Lexmark MS321dn part, speed, paper handling, ports, duplex and recommended volume ↗ — checked October 4, 2026.
- Lexmark regional product page marking MS321dn discontinued ↗ — checked October 4, 2026.
- Search this model on Amazon · Tagged exact-model Amazon search; historical ASIN not verified ↗Paid link · We may earn a commission. — checked October 4, 2026.
The decision
Choose the MS321dn when its wired ports, automatic duplex and recommended monthly range fit the queue. Its discontinued status makes exact condition, supplies and return terms part of the decision.
Is it the right fit?
Check the exact model and today’s offers on Amazon.