Canon imagePROGRAF IPF8400 Service Manual page 50

Chapter 1
6) Form the Basket Cloth into a sloping shape to make it taut, and attach the middle Basket Rod to the Rod Holder.
b. Stowing the Output Stacker
Stow the Output Stacker if you will use the Media Take-up Unit or if you will not use the Output Stacker for an extended period.
1) Lift the front Basket Rod gently to release the lock, lower the stacker toward the front, and push it all the way back.
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