The finisher was stapling only one staple in the booklet so I decided to do what all good techs do, I took both booklet staple cartridges out and gave everything a good vacuming. Replaced both the booklet staple cartridges and then neither side worked and the machine said that r3 was either empty or needed reseating. After doing the typical proding, kicking and shaking I gave up. I then ordered new staple cartridges and inserted them. Now the error message is that R2 is out of staples or not seated properly. Neither staple actually works.