Canon imagePROGRAF IPF8400 Service Manual page 48

Chapter 1
1) Lift the Basket Rod gently to release the lock, lower the stacker toward the front, and push it all the way back.
2) Remove the front Basket Rod from the left and right Basket Rods, and remove the back Basket Rod and the black cord from the Rod Holder.
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F-1-26
F-1-27