hello and welcome to the forum!
pclinux probably has the lexmark printer you need
open synaptic package manager
it is probable that you will need to update the installation to get the latest packages and drivers for your printer
there is a lexmark package in there that will let you check ink levels, use the scanner(if it has one) and other basic functions, also print

in synaptic press the reload button and apply all updates, do a search there for task-printer and for lexmark
it will be many packages, will take some minutes
after this you can open pclinux control center(wrote root password)and in the hardware/printer follow the steps to add the printer
there could be other posts mentioning this printer, you could find more information that this by doing a search on this forum on the desktop hardware section