Canon BJC-S820D User Manual page 157

Troubleshooting
Printhead Holder Does Not Move to the Center
Ensure that the printer is turned on.
The printhead holder will not move unless the power is on. If the POWER lamp is off,
close the front cover and turn the power on.
If the POWER lamp is flashing green, the printer is initializing.
When the POWER lamp stops flashing, open the front cover again.
If the front cover has been left open for a while, close and reopen it.
If the front cover is left open for more than 10 minutes, the printhead holder moves to the
right to prevent the printhead from drying out. Close and reopen the front cover to return
the holder to the center.
Printer Does Not Start or Stops During Print Jobs 157