Canon imagePRESS C1 Service Manual - page 335
Chapter 6
6-1
6.1 Construction
6.1.1 Specifications/Control Mechanisms/Functions
0012-5445
imagePRESS C1 P / imagePRESS C1 / imagePRESS C1+ (Printer) / imagePRESS C1+
6.1.2 Major Components
0012-5535
imagePRESS C1 P / imagePRESS C1 / imagePRESS C1+ (Printer) / imagePRESS C1+
Laser Beam
Wavelength
645 to 665 nm (Visible laser)
Output
20mW
Number of laser beams
2-beam laser
Laser scanner motor
Kinds of motor
DC brushless motor
Rotation
Approx. 33700 rpm
Kinds of bearing
Air bearing
Polygonal mirror
Number of facets
12 facets (29 dia)
Control list
Sync control
Main scan sync control
Sub scan sync control
Light intensity control
APC control
PWM control
Others
Laser ON/OFF control
Laser scanner motor control
Laser shutter control
Item
Description
[1]
Laser Unit
Emit the laser beam.
[2]
Polygonal Mirror
Scan the laser beam in the main scan direction.
[3]
BD Mirror
Reflect the laser beam on BD PCB.
[4]
BD PCB
Produce BD signal.
[5]
Laser Mirror 1
Reflect the laser beam with the mirror to apply it to the photosensitive drum.
[6]
Laser Mirror 2
Reflect the laser beam with the mirror to apply it to the photosensitive drum.
[7]
Laser Mirror 3
Reflect the laser beam with the mirror to apply it to the photosensitive drum.
[8]
Reflection Mirror
Reflect the laser beam with the mirror to apply it to the photosensitive drum.