In order to get quality output from most inkjet printers requires some
calibration processes take place. There are many areas in the workflow
where problems can occur, which may not even be the printer at fault.
For instance, the problem may be that your monitor is showing the colors
too light, not that the printer is going too dark.
Under any circumstances, what I suggest for now, is you simply try to
lessen the saturation, and/or increase the brightness, using either a
image manipulation software package (like Photoshop, or Elements or
lesser cost packages) or do something similar using any control options
within the printer driver (some hide these in an advanced set of menus).
I should mention Lexmark inkjet printers do tend to be a little less
robust in terms of their driver accuracy and option, relative to others
like Epson. or Canon, or HP.
Also, use of refill inks or odd papers can alter the colors on the image
result.
Art