CANIP-C910,CANIP-C810:  Ships standard with 550 sheets x 3 paper cassettes, each of 1 Tab Feeding attachment kit, Envelope attachment kit, Gradation sensor (preinstalled) and Color Universal Send (not available with PRISMAsync controller configuration). You must add one of the printer controllers.  Requires Copy Tray-R2, Staple Finisher-W1, Booklet Finisher-W1, or High Capacity Stacker-H1. Must choose either Duplex Image Reader-M1 or Printer Cover-H1.