Our take
The Lexmark MX310dn part 35S5700 is a monochrome multifunction printer for a wired office that needs copy, scan and fax alongside automatic duplex. Lexmark lists up to 35 pages per minute on Letter paper, a 50-sheet ADF, a 250–6,000 page recommended monthly range and standard Ethernet plus USB. It can fit a small workgroup with recurring document tasks, but the standard configuration does not include built-in Wi-Fi; Lexmark lists wireless as an optional adapter. The historical candidate is a renewed unit, so product specifications identify the model but do not tell you the service history or accessories of the specific seller's machine.
A wired small-workgroup MFP needing mono fax, copy/scan and automatic duplex over Ethernet..
Avoid it if built-in Wi-Fi, color printing or a current model with verified support is required; the MX310dn is monochrome and wired by default.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- The standard feature set includes copy, scan, fax and integrated automatic duplex printing.
- Lexmark recommends 250–6,000 pages monthly and rates Letter output up to 35 ppm.
- Ethernet, USB and a 50-sheet ADF support a shared wired document workflow.
What to weigh up
- Built-in wireless is not listed as standard; the manufacturer identifies a separate optional adapter.
- The 300-sheet standard input is modest for a machine with a 6,000-page recommendation.
- The renewed candidate listing does not prove the printer's maintenance, supplies or included optional hardware.
The key details
| Model covered | MX310dn (35S5700) |
|---|---|
| Main functions | Print, copy, scan and fax |
| Print output | Monochrome laser; up to 35 ppm Letter |
| Two-sided printing | Integrated automatic duplex |
Performance figures are manufacturer claims. Source checked October 7, 2026. Regional models and included accessories can differ.
What the features mean for you
A mono MFP for a wired workgroup
Lexmark identifies the MX310dn as a monochrome laser device with printing, copying, color scanning, network scanning and fax. That makes it useful where paper comes in through an ADF and the office also sends faxes, not just where staff print letters. The manufacturer rates output up to 35 pages per minute on Letter paper and recommends 250 to 6,000 pages per month. These figures describe model guidance, not the output speed or remaining life of a specific renewed unit. If color printing is needed, the scanner's color capability does not change the printer's monochrome output.
Automatic duplex and the feeder reduce repetitive steps
The product page lists integrated automatic duplex and a 50-sheet automatic document feeder. Duplex output handles two-sided pages without manual reloading, while the feeder can move a stack of originals into scan or copy workflows. The cited specification identifies the ADF as simplex; it should not be treated as a one-pass duplex scanner. For an office that mostly prints and scans single-sided pages, the combination covers a practical routine. If two-sided capture is frequent, compare it with an MFP whose manufacturer documents a duplex ADF. Always test the feeder and duplex path on a used device because wear is unit-specific.
Ethernet is standard and wireless is an add-on
Lexmark lists Ethernet 10/100BaseTX and USB 2.0 as standard ports. The U.S. specification names an optional MarkNet wireless adapter rather than a built-in radio. That makes the MX310dn a natural fit for a fixed wired office queue, but it is not a confirmed out-of-box Wi-Fi printer. If you need wireless access, verify the exact adapter part, installation and driver support before relying on it. Ethernet also supports common managed network printing, though the print server configuration on a used machine may need reset and re-setup for a new office.
Paper capacity and volume range need to be considered together
The MX310dn holds 250 sheets in its standard input and 50 in a multipurpose feeder, with 150 sheets in the output bin. Lexmark lists an optional 550-sheet tray and recommends 250 to 6,000 pages each month. The monthly guidance is broad, but long jobs still mean refilling paper and collecting output. If the team routinely prints in batches, consider whether the optional tray is present and whether the device has space for it. The maximum duty-cycle figure is not a replacement for the recommended range; the guide uses the latter to match an ordinary workload.
Confirm the renewed unit's identity and accessories
The historical title names MX310dn and part 35S5700, matching Lexmark's U.S. model record. The source confirms that the network, automatic duplex, fax and feeder features belong to the model, but a renewed listing can vary in condition and bundled accessories. Check the nameplate, tray count, ADF feed, fax port, Ethernet connection and toner level with the seller. Lexmark's replacement cartridges are region-specific, so verify the supply market before ordering. Product specifications do not establish current offers, price, inventory or the quality of a particular refurbished machine; those remain questions for the seller and buyer.
What else to compare
Compare the Brother MFC-8910DW if wireless networking matters; the Canon MF426dw has both Wi-Fi and Ethernet and a published 500–4,000 page range.
Before you buy
Does the MX310dn include Wi-Fi?
No built-in wireless is listed as standard; Lexmark describes a separately available wireless adapter.
Does the MX310dn print automatically on both sides?
Yes. Lexmark lists an integrated duplex unit for automatic two-sided printing.
What is the recommended monthly volume?
Lexmark gives the MX310dn a recommended range of 250 to 6,000 pages per month.
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. MX310dn product page and specifications ↗ — checked October 7, 2026.
- Lexmark U.S. MX310dn part 35S5700 product page: functions, interfaces, capacity and monthly range ↗ — checked October 7, 2026.
The decision
The MX310dn is a capable wired monochrome fax MFP when Ethernet and automatic duplex fit the office. Its lack of standard Wi-Fi and renewed-unit uncertainty should guide the purchase.
Is it the right fit?
Check the exact model and today’s offers on Amazon.