Canon iR C2880 Series Service Manual page 214

Chapter 6
- Ideal Polygon Mirror (equilateral hexahedron)
- Actual Polygon Mirror (non equilateral hexahedron)
Actual write
start position
The following diagram shows the flow of the control mechanism:
6-8
Write start position
Design write
start position
- Ideal Polygon Mirror (equilateral hexahedron)
BD
- Actual Polygon Mirror (non equilateral hexahedron)
BD
T1
BD
T1
D-CON
Y/M laser driver C/Bk laser
driver
D-CON
Y/M laser driver C/Bk laser
driver
F-6-8
Write start position (Y, M)
VDO
T1
Design write start position (Y, M)
VDO
Actual write start position (Y, M)
VDO
F-6-9
Reference BD
BD circuit
Reference BD
BD circuit