Controlling The Scanning Lamp; Overview - Canon imageRUNNER 5065 series Service Manual

25-49%
50-99%
100%
101-200%
201-400%
The following shows the speeds at which the mirror base is moved:
[2] In ADF mode, the machine changes the speed at which the original is moved for a ratio between 25% and 200%.
25-49%
50-99%
100%
101-200%
The following shows the speeds at which the original is moved:

5.3.3 Controlling the Scanning Lamp

5.3.3.1 Overview

iR5065 / iR 5055 / iR5075 / / /
The following shows the items of control and the components of the control system associated with the activation of the scanning lamp:
1. Controlling the Activation
The machine turns on or off the scanning lamp using the drive signal (XE-ON) generated by the CPU on the reader controller PCB. In response to the signal,
the inverter PCB generates high-frequency high voltage in the activation motor circuit using the drive voltage (+24 V) supplied by the reader controller PCB,
thus turning on the scanning lamp.
2. Detecting an Error
The machine identifies an error in the intensity of light as an activation error occurring when the lamp is initially turned on (shading correction).
ERROR CODE:
E225
-0001: at time of shading, the detected intensity of light falls short of a specific level.
-0002: in ADF mode, the intensity of light between originals falls short of a specific level.
increases the mirror base speed.
collects image data at the same speed as for a ratio between 100% and 196%.
uses data skipping on the reader controller PCB (50%)
uses data skipping on the main controller PCB (50%)
increases the mirror base speed.
e.g.: at 50%, reads images at twice the speed of 100%; also, uses data skipping on image data
read at a ratio between 100% and 198% on the reader controller PCB (50%).
325 mm/sec
decreases the mirror base speed.
e.g., at 200%, collects images at 1/2 the speed for 100%.
decreases the mirror base speed.
e.g., at 200%, collects images at 1/2 the speed for 100%.
speed ratio
1
1/2
1/4
25% 50% 100% 200%
increases the speed used to move the original (as compared to 100%).
collets image data at the same speed as for a ratio between 100% and 196%.
uses data skipping on the main controller PCB (50%).
increases the speed at which the original is moved.
e.g., at 50%, collects the image at twice the speed for 100%.
325 mm/sec
decreases the speed at which the original is moved.
e.g., at 200%, collects image data at 1/2 the speed for 100%.
2
1
1/2
1/4
25% 100%
50%
T-5-5
Description
Magnification
400%
F-5-12
T-5-6
Description
200%
F-5-13
Chapter 5
0015-4395
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