Controller Test Print - Canon MF8580Cdw Service Manual

• MF8200 series
1) Leave the front cover(1) and the rear cover(2) open to turn on the power.
(1)
2) Close the Front Cover (1) and the Rear Cover (2) within 5 seconds since the Control Panel
lights up white.
3) The engine test chart is printed in the horizontal line patterns on a sheet as shown below.
6
Trouble Shooting > Test Print > Controller test print > Overview
(2)
F-6-3
F-6-4
6 Trouble Shooting > Test Print > Controller test print > Overview

Controller test print

■ Overview
This product provides the following 6 test chart types to determine causes of faulty images.
The data for test charts are created in the main controller. If no problem is found on the output
test charts, the cause may lie in the PDL input or the reader.
TYPE NO. Test chart type
0 Pascal correction chart 1
1 Pascal correction chart 2
2 Color chart
3 Color displacement correction chart
4 Rainbow chart (vertical scanning
direction)
5 Rainbow chart (horizontal scanning
direction)
6 Grid Bk
6-3
Purpose
For checking density characteristic
(Error diffusion)
For checking density characteristic
(Screen)
For checking color reproduction
characteristic
For checking color displacement
correction
For checking color displacement
(Vertical scanning)
For checking color displacement
(Horizontal scanning)
For checking geometric characteristics
and thin lines
T-6-1
6-3