Write Section; Configuration; Operation; Overview - Konica Minolta BIZHUB C3100P Service Manual

2. WRITE SECTION

2.1 Configuration

[1]
[11]
[10]
[9]
[8]
[1] Index lens
[3] Index board
[5] Semiconductor laser
[7] Polygon mirror
[9] Index mirror (K)
[11] Return mirror (C)
[1]
[2]
[13] [12]
[11]
[1] G2 lens (Y)
[3] Return mirror (M)
[5] Return mirror (C)
[7] Return mirror (K)
[9] G1 lens
[11] Return mirror (C)
[13] Return mirror (Y)

2.2 Operation

2.2.1 Overview

• Four semiconductor lasers provided, one for each of the four different colors. A single polygon motor is used to make a scan motion.
• Each photo conductor is irradiated with a laser light so that an electrostatic latent image is formed on it.

2.2.2 Laser exposure process

1. The laser light emitted by each of the semiconductor laser/Y, M, C, and K is reflected onto the polygon mirror via the synthetic mirror.
2. Since the angle of incidence for each color of laser light varies, the laser light reflected by the polygon mirror is reflected at a different angle
for each color.
3. The condensing angle of each color of laser light is corrected by the G1 lens before reaching each return mirror.
4. The laser light of each color is condensed on the surface of the photo conductor through the return mirror/1st, G2 lens, and return mirror/
2nd.
[2]
[3]
[4]
[5]
[6]
[7]
[4]
[3]
[5]
[10] [9] [8]
O THEORY OF OPERATION bizhub C3100P > 2. WRITE SECTION
[2] Return mirror (light source)
[4] Cylindrical lens
[6] Synthetic mirror (Y,M,C,K)
[8] G1 lens
[10] Return mirror (K)
- -
[6]
[7]
[2] G2 lens (M)
[4] G2 lens (C)
[6] G2 lens (K)
[8] Polygon mirror
[10] Return mirror (K)
[12] Return mirror (M)
- -
O-2