The compact Lexmark E240n has the same angular design as the company's E232 and E330 models, but adds networking via its built-in ethernet port. Like the older printers, the E240n has a simple, two-button control panel, so there's no LCD-based menu system for entering the network settings – but installation was surprisingly simple.
The tray in the E240n's base holds up to 250 sheets, with legal-size the largest it can accommodate. The tray extends out from the back, where a removable cover protects it from dust. Up to 150 pages collect face-down in the bin on top of the printer.
Because you have to feed thicker media individually through the E240n's manual bypass slot, printing more than a few envelopes (for instance) at a time can become tedious. You can reduce the chance of jamming by folding down the rear paper exit.
Lexmark rates the capacity of the bundled starter toner cartridge as sufficient for just 1,500 pages. The firm offers the same £78, 2,500-page replacement cartridges for the E240n as for its other printers, but not the E330's more economical units, rated at 6,000 pages. When you include the £48 to replace the drum assembly every 30,000 print-outs, the cost per page becomes 3.2p, which is relatively steep.
Despite having a faster processor, the E240n prints more slowly than the E330: text at a still-rapid 20ppm (pages per minute) and graphics at 8ppm. In our tests most characters looked sharp, despite the heavy-set type and the mottled appearance of solid areas when seen under artificial lighting. Our line-art sample seemed a bit dark, and some of the blocks of closely spaced lines looked gritty, but banding was barely visible. Unfortunately, the E240n couldn't match these results in our greyscale image test, which came out far too dark.