Canon LBP-CX Series Service Manual page 57

polished faces and is manufactured to exacting
tolerances. The mirror rotates when the DC controller
generates SCNON, the scanner driver outputs SMD,
and the scanner motor turns. Because the laser beam
must be directed very precisely, the scanner motor
must rotate at a precise speed.
Immediately after the laser beam reflects off the
scanning mirror, it passes through a convex collimat-
ing lens (focusing lens), and is focused to a tiny point
on the drum surface via the beam-to-drum mirror.
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BY CANON INC. CANON LBP-CX SEHIES HEV.2 JULY 1985 PHINTm IN JAPAN (IMPHIME AU JAPONJ
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