Canon iR C3380 series, Service Manual

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Chapter 6
6-1
6.1 Construction
6.1.1 Specifications, Control Mechanisms, and Functions
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6.1.2 Overview
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/ / / / iR C3380i / iR C3380 / iR C2880i / iR C2880
The machine's laser exposure system serves to form a static (latent) image on the surface of the photosensitive drum according to the video signals from the main
controller, and it consists of 2 laser driver PCBs, a BD circuit (Note 1), and a scanner motor among others.
These components are constructed as a single entity (scanner unit), and are controlled by the DC controller.
Laser Light
Wave length 780 to 800nm (infrared rays)
Output 5mW
Number of Laser Light 4-laser (1-beam/color)
Scanner Motor
Motor type DC brushless motor
Number of rotation iR C3380/2880: approx. 34000rpm
Bearing type Oil
Polygon Mirro
Number of facets 6-facet
List of Controls
Timing for laser activation ON/OFF control
Main scanning direction sync control
Sub scanning direction sync control
BD correction control
Light intensity control APC control
Others Scanner motor speed control