imagePRESS Lite C165 (3831C002AB): Staple Finisher-W1, Booklet Finisher-W1,Staple Finisher-AC1, Booklet Finisher-AC1, and Copy Tray-R2 cannot be installed at the same time. Document Insertion Unit-N1, Paper Folding Unit-J1, Multi Function Professional Puncher-B1 and Booklet Trimmer-F1 cannot be attached. Staple Finisher-AC1 includes 1 staple cartridge (5,000 staples) within the Finisher. An additional Staple Cartridge-X1 box (3 cartridges per box, 5,000 staples per cartridge) is also included.