Canon imagePRESS C800 Series Troubleshooting Manual page 197

Chapter 1
In the case of collecting waste toner by bringing back the Waste Toner Container, refer to step a) and in the case of disposing the waste toner only, refer to the step b).
a) In the case of collecting waste toner by bringing back the Waste Toner Container
a-1) Remove the Waste Toner Container Cap [1] and attach it to the opening [A] of the Waste Toner Container [2].
a-2) Take out the Waste Toner Container [1].
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