Lexmark CX310dn: duplex color output and simplex scanning review

Automatic duplex on the output side

The Lexmark CX310dn is the duplex-printing member of this color MFP pair. Its exact US part is 28C0550, with printing, scanning and copying documented in the original manufacturer record. The most important qualification is that duplex applies to printing: its included 50-sheet automatic document feeder scans one side of an original at a time.

Lexmark marks the model discontinued. Verify the actual regional part and supplied accessories when comparing an earlier machine. The US marketing paragraph confusingly calls it a CX310n with two-sided printing, but the exact heading, box identity, integrated-duplex field and original brochure's dn column identify this configuration. That wording is not a reason to merge the two variants or ignore their different starter supplies.

Match each document size to its real route

Letter, Legal and A4 support ordinary printing from the included main drawer and automatic two-sided output. The ADF also accepts supported originals in those sizes. The scanner glass has a shorter limit, with positive Letter and A4 support and an explicit exclusion for Legal. A Legal feeder specification therefore should not be described as a Legal flatbed.

For suitable one-sided stacks, the 50-sheet ADF can reduce manual placement. Two-sided originals still need an appropriate manual routine because the feeder does not automatically reverse or scan both faces. Books, photos, small items and thin originals use the glass according to the instructions. A color scan setting does not change these physical paper limits.

Printing and scanning use separate rate declarations

Lexmark declares up to 25 one-sided Letter pages per minute in black or color, while automatic print duplex is separately 12 Letter sides per minute. Simplex scanning is another mode: up to 32 Letter sides per minute or 30 A4 sides per minute for black or color. Do not use the scan rate as print speed or treat the one-sided print rating as duplex throughput.

The recommended monthly print range is 500–5,000 pages, distinct from the 60,000-page maximum duty figure. These maker declarations help compare capacity but are not performance measurements from this article. Job complexity, rendering and repeated small submissions can change the timing of a real work queue.

Computer scanning is documented over the actual connections

The exact US specification explicitly names a USB or network-connected computer as a scanning destination. USB Type-B connects to the computer, and gigabit Ethernet supports shared networking. The guide also documents a network scan profile with a selected output location and shortcut used at the printer. Confirm the current driver, browser and application environment needed for the intended route.

AirPrint and Mopria use a suitable shared network and compatible devices. Included Ethernet does not mean included Wi-Fi: a MarkNet radio is optional. A lone USB computer connection also does not borrow the network mobile functions. Confidential printing is separately documented through compatible Print and Hold submission, a computer-set four-digit PIN and panel release using memory; ordinary protected jobs do not require an optional disk.

Base paper capacity and the exact CX supplies

Included input is a 250-sheet drawer and one-sheet manual feeder at the stated 20-pound or 75-gsm basis. The 250+1 headline does not provide two normal stacks. Suitable envelopes use a separate one-sided manual routine, and optional input should be counted only if the physical accessory is supplied. The duo assembly adds a 550-sheet drawer and 100-sheet multipurpose feeder for maximum 900+1 input, while the output bin remains separately 150 sheets.

The US dn starter set is declared at 1,400 pages for black and each color. Replacement identifiers include 80C1SK0 black at 2,500 pages and 80C1SC0, 80C1SM0 and 80C1SY0 colors at 2,000 each under ISO/IEC 19798. Check geographical compatibility and Return Program conditions, keeping imaging/developer components separate. The similarly named CS310 supplies should not be substituted from a shared family description.

Fax is not part of the exact print/scan/copy function set. The body measures 17.48 inches wide, 21.99 deep and 18.44 high at 60.25 pounds before operating access. Inspect the actual electrical label and cord, and allow room for the scanner and extended guides when judging physical fit.