He is pointing out your writing style. There is a place for sms writing (small cell phones) and a place for proper writing.
Now, have you been able to print to this printer before? Is the windows machine set up to share and can another computer on that network print to it? If not, check the settings and do what Windows computer knows best, restart.
Also, what king of Windows PC is it? If it is Window Me, forget even trying. Plus, are your drivers for the printer up to date. Trying deleting the printer in Print Center and then re-add it.