Callout | Item | Callout | Item |
|---|---|---|---|
[A] | LD Board | [F] | Synchronization Mirror |
[B] | Collimating Lens | [G] | Synchronization Lens |
[C] | Polygon Motor | [H] | Synchronization Detector |
[D] | Lens (L1) | [I] | LD Unit |
[E] | Mirror 1 |
The LD unit has a synchronization detector at the left side of each unit (for the optical paths for the K and M drums only). A laser beam coming from the LD board [A] travels to the collimating lens [B] polygon motor [C]
lens (L1) [D]
Mirror 1 [E]
Mirror 2
Mirror 3
Drum.
When the beam is at the beginning of the line, the synchronization mirror [F] reflects it to the synchronization lens. The synchronization detector [H] detects the beam reflected.