The Oki C610dtn colour LED printer is one of the better-balanced office printer models we've seen recently.
For a reasonable price, the Oki C610dtn offers good performance and economy. Its overenthusiastic colour palette is our biggest complaint.
Our second-biggest complaint about the Oki C610dtn is about the installation. Parts of the process are tedious. You have to install each driver and utility separately, and you have to "activate" installed accessories, such as the automatic duplexer. Other parts are confusing: The default installation loads drivers for a related product, the C711; you have to manually deselect that item. Worse, the setup guide's instructions for the Mac are outdated and have smaller factual errors, as well. Oki says that updated documentation will be available online in a few weeks.
In our tests the Oki C610dtn printer's speed was very good, but its colour quality needs adjustment. On the PC platform, the C610dtn posted healthy speeds of 19.1 pages per minute printing plain-text documents, and 2.7 ppm to 3.2 ppm printing photos at default and higher-quality settings, respectively. On the Mac platform, it printed text at a slightly slower pace of 17.2 ppm. A four-page PDF file of mixed text and graphics and a full-page colour photograph each took around a minute to finish.
The printer's oversaturated palette resulted in ruddy flesh tones and dark or lurid colours. Oki provides colour-management utilities with the Oki C610dtn, and you will probably need them. We also noticed grainy or fuzzy qualities in solid-colour areas.
The Oki C610dtn's features would accommodate a busy workgroup. USB and ethernet connections are standard. The printer also has 256MB of memory with room for expansion. The two standard letter/legal paper trays hold 300 and 530 sheets, respectively; a third, 530-sheet tray is a pay-for extra.
Although the 100-sheet front multipurpose tray could be useful, it's awkwardly designed. An automatic duplexer is standard. As for the controls, the panel is clearly labeled, and the menus displayed on the five-line monochrome LCD are easy to understand. The only unlabeled button, inexplicably, is the big one that unlocks the printer's top (requiring 27 inches of clearance) to reveal the toner supplies. The cartridges have lock levers and are keyed to their bays. A USB port is nestled in back.
The economical consumables are a highlight. The Oki C610dtn ships with starter-size, 2000-page cyan, magenta, yellow, and black toner supplies. Running costs are something of a bargain.
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