Canon PIXMA iP5200 Service Manual page 24

(II) After securing the waste ink tube with tape, be careful not to damage the tube in installing the printer
unit chassis in the bottom case unit.
With the units assembled, the tube conditions are not visible. To confirm the tube is free from
damage, perform the manual purging 3 or 4 times, and confirm that no strange noise is heard.
[Example: The tube is pinched and blocked as it is not fixed with tape.]
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