Canon imageRUNNER ADVANCE 4551i Service Manual page 220

5. Pull the lever [1] on the upper side of the ADF, and open the cover [2] of the document reading area. Hold down the
8 areas indicated with circles shown in the figure below, and secure the White Plate and the cover of the ADF
document reading area in place.
[2]
CAUTION:
Check that the White Plate [1] is not placed on the Index Sheet [2].
■ Removing the ADF Scanner Unit
● Preparation
1. Removing the ADF Pre-separation
198
[1]
[1]
[2]
[2]
[1]
Unit"Removing the ADF Pre-separation Unit / ADF Separation Roller" on page
[1]
[2]
207
4. Disassembly/Assembly
[2]
[1]