Canon CLBR 460ps Service Manual page 315

g. Feed belt
Clean with lint-free paper.
h. Fixing unit
Fixing unit entrance guide
Clean with MEK.
Upper/lower fixing separation guides
Clean lightly with MEK only to remove the toner on the guides.
i. Density sensor unit
Clean the detection window with the dedicated blush. See chapter 1 "VI. MAINTENANCE
AND SERVICE BY THE CUSTOMER" for the details.
j. Toner tray
Clean with the hardly squeezed wet cloth.
CHAPTER 4
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