The most reliable option for your Lexmark laser printer for cartridges is a genuine product like this 0X340H11G. Whilst you pay for Lexmark quality when buying the X340H11G, you also get a quality of print that is unbeaten for the X342, X342n and any other compatible printer.Lexmark estimate that the X340H11G will offer 6,000 prints in its life, making the cost per page pretty reasonable. Just like your monochromatic laser printer, the Lexmark 0X340H11G comes with a full guarantee with the manufacturer, in the rare event that you should experience anything but perfect performance from this item.