Canon BJ-30 User Manual page 147

3. Close the interface cover.
4. Open the paper support.
5. Start your print operations.
When not printing, close the paper support. When the paper support is
open, the battery switch is turned on and the printer is receiving power
from the battery pack.
138
Installing and Using the Battery Pack
This turns on the battery switch so the printer can receive power
from the battery pack.
Chapter 9