Canon L90 - Manual (Page 161)

Maintenance
7-24
Transporting the Machine
Follow this procedure to avoid
vibration damage to the machine when
transporting it over a long distance.
1
Disconnect the power cord and
all the cables from the back of the
machine.
2
Close the paper delivery tray
extension (A), and then the paper
delivery tray (B) itself.
Do not close the paper delivery tray without
folding the extension
first.
3
Open the toner cover by the notch
(A).