Laser Synchronizing Detector; Overview; Main Scan Start Detection - Ricoh G104 Service Manual

LASER EXPOSURE

6.4.3 LASER SYNCHRONIZING DETECTOR

[E]

Overview

The machine has four laser synchronizing detector boards (LSD) as shown above.
Each pair of boards detects two colors. The machine knows each color from the
time that they are detected. The two LSDs [A] [B] are used for magenta and black,
and the two [C] [D] are used for yellow and cyan.

Main Scan Start Detection

For magenta and black, the LSD [B] detects the start of the main scan. For yellow
and cyan, the LSD [C] detects the start of the main scan. The arrows [E] [F] show
the direction of the laser scan.
G104
CÓPIA NÃO CONTROLADA
[D] [C]
CÓPIA NÃO CONTROLADA
[B]
6-28
[A]
G105D133.WMF
[F]
SM