Not sure where on your driver, but there should be a tab like device settings and under that tab will be a section called installable options and in this section you will need to change staple from not installed to installed. Most likely the driver was reinstalled and the default is probably not for the stapler unit. You need to go into your printer folder and right click on the printer icon and then scroll down to the first properties if more than one and then left click and from there find the tab that has the installable options. Good Luck.
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