Canon imageRUNNER ADVANCE 4551i Service Manual page 918

12. Secure the toner supply cover, front cover, delivery
section, and cassette with tape.
13. Place a sheet of A3 paper on the document glass,
and then secure the document glass cover (ADF)
with tapes.
14. Loosen the 4 adjusters to release fixing the host
machine.
15. <When the high capacity cassette pedestal is
installed.>
Loosen the 2 screws connecting the host machine with
the high capacity cassette pedestal.
CAUTION:
When lifting the host machine with the high capacity
cassette pedestal installed, if the fixing screws are
loosened to connect the host machine with the high
capacity cassette pedestals. They may separate from
each other and consequently the machine may be
damaged.
2x
905
9. Installation