Our take
Lexmark identifies the C510n part 20K1200 as a color laser print-only model. The U.S. specifications rate it at up to 30 pages per minute in monochrome and 8 pages per minute in color, with standard Fast Ethernet and USB. Lexmark lists a 250-sheet input and output capacity and describes a duplex unit as optional. The reviewed page does not state a recommended monthly range or built-in Wi-Fi. Compared with the base C510, the n model adds standard wired networking, but the two should not share assumptions about their ports. This is a legacy configuration that needs an exact-unit and driver check.
A wired legacy office that needs color output but can work without standard duplex and can verify legacy support..
Avoid it if automatic duplex must be standard, if Wi-Fi is required, or if frequent color work needs higher throughput.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- Lexmark identifies part 20K1200 and lists standard Fast Ethernet plus USB.
- The separate 30 ppm mono and 8 ppm color ratings are documented.
- Lexmark lists 250-sheet input and output for the C510n.
What to weigh up
- The optional duplex unit is not standard in the documented base configuration.
- Color output is rated substantially slower than monochrome output.
- A recommended workload range and built-in Wi-Fi are not established.
Specifications and exact model details
The key details
| Model covered | C510n (20K1200) |
|---|---|
| Main functions | Color laser printing only |
| Print output | Up to 30 ppm monochrome and 8 ppm color |
| Two-sided printing | Fast Ethernet and USB standard; optional duplex unit |
Performance figures are manufacturer claims. Source checked October 15, 2026. Regional models and included accessories can differ.
Full review: how the features affect your choice
What the features mean for you
C510n is the networked sibling
Lexmark identifies C510n part 20K1200 as a color laser printer with standard Fast Ethernet and USB. This differs from base C510 part 20K1100, which lists USB and parallel and treats Ethernet as optional. That suffix distinction affects how a shared office can install the printer. The product is print-only, so the C510n does not replace a scanner or copier. Confirm the 20K1200 label and Ethernet port on a used listing rather than trusting a C510 family title ([Lexmark C510n](https://www.lexmark.com/en_us/printers/printer/1964/Lexmark-C510n)).
Separate monochrome and color throughput
Lexmark rates the C510n up to 30 pages per minute in monochrome and 8 pages per minute in color. Those manufacturer ratings are useful for understanding the difference between text-heavy work and color jobs. They are not measured outcomes for a particular used device. Teams that print color regularly should treat the 8 ppm rate as a meaningful constraint and compare a faster color model. Lexmark does not state a recommended monthly range on the reviewed page, so do not convert speed or maximum duty information into a routine workload recommendation.
Automatic duplex requires the optional unit
Lexmark describes a duplex unit as optional for the C510n. Automatic two-sided printing should therefore not be considered part of the base product unless the seller confirms the accessory is installed and working. Ask for its part number and a test page if duplex is important. The profile reflects the standard configuration, while manual duplex behavior is not separately established in the checked page. If regular two-sided output is a hard requirement, a model with duplex standard reduces the accessory and compatibility uncertainty.
Paper capacity is listed, workload guidance is not
Lexmark lists 250 sheets for input and 250 for output on the C510n. The input figure helps estimate refill frequency, while the output figure can matter for longer jobs that may otherwise overfill a smaller catch tray. Neither is a monthly recommendation. The reviewed specification does not state the recommended volume, and this legacy printer's present condition cannot be inferred from its original rating. Inspect the cassette, output path, rollers and supplies before returning a used machine to an office queue.
Check the legacy network and driver setup
Fast Ethernet gives the C510n a wired shared-printing path, but the source does not list built-in Wi-Fi. A buyer should verify the port and supported driver on the intended operating system before connecting it to a current office network. The model's older status also makes toner availability, maintenance supplies and service options practical parts of the decision. These are checks for the present unit, not claims about live stock. Keep the networked C510n distinct from base C510 when comparing marketplace listings and optional hardware.
Compare for your needs
For built-in automatic duplex compare a model whose base configuration includes it; for wireless select a printer with standard Wi-Fi documented for the exact suffix.
Find the undefined that fits you.
Tell us what matters. We’ll help you weigh the options.
Before you buy
Does the C510n print in color?
Yes. Lexmark identifies the C510n as a color laser printer.
What are its mono and color ratings?
Lexmark lists up to 30 pages per minute in monochrome and 8 pages per minute in color.
Is Ethernet standard on the C510n?
Yes. Lexmark lists Fast Ethernet and USB as standard interfaces for part 20K1200.
Does it include automatic duplex?
Lexmark describes the duplex unit as optional, so confirm it is installed on the exact printer.
How much paper input is listed?
Lexmark lists 250 sheets of input capacity for the C510n.
What monthly workload does Lexmark recommend?
The reviewed Lexmark page does not state a recommended monthly range.
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. C510n specifications and standard configuration ↗ — checked October 15, 2026.
- Lexmark U.S. C510n part, speeds, standard Ethernet/USB, paper capacity and optional duplex ↗ — checked October 15, 2026.
The decision
The C510n adds standard wired networking to a legacy color platform, while its slow color rating, optional duplex and unknown workload limit the fit.
Is it the right fit?
Check the exact model and today’s offers on Amazon.