Canon imageRUNNER ADVANCE C5500 Series Service Manual page 354

3. Install the springs [3] to the protrusions [4] on both sides.
CAUTION:
Be sure to check that the springs [1] on the side of the Duplex Unit are not installed askew.
4. Align the protrusions [1] on the Shaft Support Holders of the Secondary Transfer Roller Unit with the springs [2] on
the side of the Duplex Unit, and install them alternately, one side at a time.
5. Install the stopper.
CAUTION:
Actions after Replacement:"Actions after Parts Replacement" on page 435
[4]
[1]
[1]
[2]
[3]
[2]
[1]
[1]
340
4. Disassembly/Assembly