Canon Pixma TS8700 Series Online Manual page 481

Multi-Purpose Tray Jammed
Pull out the multi-purpose tray gently.
If the multi-purpose tray cannot be pulled out, cycle the power switch. The multi-purpose tray will
automatically be ejected.
When the multi-purpose tray is pulled out, place the multi-purpose tray again and retry printing. For more
on placing the multi-purpose tray, see Placing a Printable Disc.
If the multi-purpose tray is still jammed, check if there is a problem with the printable disc.
Multi-Purpose Tray Does Not Feed Properly
481