Our take
Lexmark identifies the MX510de as a monochrome laser multifunction model, part 35S5702, with printing, copying and color scanning. The stated print speed is up to 45 pages per minute. Integrated duplex, Gigabit Ethernet and USB are documented for this exact suffix. Lexmark's support material lists the MX510de configuration as networking with no fax; do not transfer the MX511de's fax modem to this model. The sources checked here do not establish a comparable recommended monthly range, so workload endpoints remain unknown rather than inferred from speed or duty cycle.
A wired office that wants a fast monochrome print, copy and scan device with automatic duplex but does not require fax..
Skip it if fax is required, built-in wireless is essential, or a documented recommended monthly range is a must-have for purchasing.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- Lexmark rates the exact MX510de at up to 45 pages per minute.
- Integrated duplex and Gigabit Ethernet suit a shared wired print-and-scan workflow.
- The source distinguishes its no-fax configuration from the MX511de.
What to weigh up
- This exact suffix is not the fax-equipped MX511de.
- Built-in Wi-Fi is not listed among the standard connections.
- The reviewed sources do not establish a recommended monthly page range.
Specifications and exact model details
The key details
| Model covered | MX510de |
|---|---|
| Main functions | Monochrome print, copy and scan; fax not listed |
| Print output | Up to 45 ppm; recommended monthly volume not established here |
| Two-sided printing | Integrated automatic duplex printing |
Performance figures are manufacturer claims. Source checked October 14, 2026. Regional models and included accessories can differ.
Full review: how the features affect your choice
What the features mean for you
Separate the MX510de from the fax-equipped MX511de
The MX510de combines monochrome printing with copy and color-scan functions, but Lexmark's configuration table says networking and no fax for this exact model. The nearby MX511de adds fax, so a shared family name is not enough to establish that feature. This distinction changes whether the device can replace a fax machine or cover a fax-required selection path. Check the model suffix on the product label and do not assume an installed telephone port belongs to the de version.
Automatic duplex supports longer document runs
Lexmark lists integrated duplex printing and duplex scan support for the MX510de. Printing both sides can reduce manual page handling, while the feeder can process two-sided originals for scan tasks according to the exact configuration documentation. Those are separate mechanisms and should not be conflated. A used unit still needs an operational check of both paths, rollers and image quality. For single-page occasional printing, the more involved MFP may add functions that are not needed; shared paper workflows can make them useful.
Use wired connections for a shared device
The standard interface record includes Gigabit Ethernet and USB. A wired network can make the machine available to a small office, and USB remains an option for a directly connected computer. The checked specifications do not establish built-in wireless networking, so a Wi-Fi requirement should lead to another model or a separately verified accessory. Network setup, compatible drivers and scan destinations depend on the current office environment and are not guaranteed by the original product sheet.
Treat speed as a rating, not a workload recommendation
The MX510de is rated up to 45 pages per minute, but the sources consulted for this exact suffix do not provide a recommended monthly page range. That missing guidance should remain unknown. A maximum duty cycle, even if found in another document, would not substitute for a recommended routine. Estimate the office's real monthly pages and check service history before relying on a discontinued machine. If the purchase decision depends on documented monthly guidance, compare a model whose manufacturer provides that range.
Confirm the exact 35S5702 configuration
Lexmark's U.S. listing connects part 35S5702 with MX510de and describes a 4.3-inch color touch display, monochrome output and the listed connections. The matching identity must stay distinct from MX511de, MX517de and other nearby business MFPs. Optional accessories and the condition of an offered unit are not proven by a family photograph. Ask the seller for the model plate, test copy and duplex scan demonstration. The article describes the original specification, not a personal test or a current offer.
Compare for your needs
Choose the MX511de only if its exact fax configuration is needed; consider a newer mono MFP when wireless or current support matters.
Find the undefined that fits you.
Tell us what matters. We’ll help you weigh the options.
Before you buy
Can the MX510de send faxes?
Lexmark's exact configuration listing marks fax as unavailable on the MX510de; the MX511de is a separate fax-equipped model.
Does it print two-sided pages automatically?
Lexmark lists integrated duplex printing for the MX510de, although the installed mechanism should be tested on a used unit.
What monthly workload does Lexmark recommend?
The checked exact-model sources do not state a comparable recommended monthly range, so this profile leaves it unknown.
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 and review basis
Sources & review basis
We use the linked product documentation for the features above. Our suitability notes and buying advice are editorial judgments based on those features, not measured performance results.
- Lexmark U.S. MX510de exact-model specifications ↗ — checked October 14, 2026.
- Lexmark MX510de U.S. exact-model functions, ports and duplex specification ↗ — checked October 14, 2026.
- Lexmark service guide: MX510de networking and no-fax configuration ↗ — checked October 14, 2026.
The decision
The MX510de is a wired, fast mono scan-copy MFP for buyers who can do without fax and can assess workload without a published monthly range.
Is it the right fit?
Check the exact model and today’s offers on Amazon.