Canon BJ-10sx - Manual (Page 64)

Cleaning the Print Head
6. Push the lock lever back until it snaps into place. This
secures the ink cartridge so it makes contact with the
circuit board on the cartridge holder.
CAUTION: Do not move the ink cartridge after it is installed.
Moving the ink cartridge to the right and leaving it there may
uncap the print head and cause it to dry out.
7. Close the inner cover and then close the top cover.
When you are not using the printer, make sure the ink cartridge
is in its home position, which is on the left side of the printer.
NOTE: The print head on a new ink cartridge needs to be
cleaned to ensure that you get the best possible print quality. This
section describes a simple procedure for cleaning the print head
on a new ink cartridge. If you are having print quality problems,
see the more detailed cleaning procedure described in Chapter 7,
Troubleshooting.