Canon Color imageCLASS MF8280Cw, Руководство по обслуживанию

Страница: 328 / 401

6
6
6-3
6-3
Trouble Shooting > Test Print > Controller test print > Overview
Trouble Shooting > Test Print > Controller test print > Overview
• MF8200 series
1) Leave the front cover(1) and the rear cover(2) open to turn on the power.
(1)
(2)
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.
F-6-3
F-6-4
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 Purpose
0 Pascal correction chart 1 For checking density characteristic
(Error diffusion)
1 Pascal correction chart 2 For checking density characteristic
(Screen)
2 Color chart For checking color reproduction
characteristic
3 Color displacement correction chart For checking color displacement
correction
4 Rainbow chart (vertical scanning
direction)
For checking color displacement
(Vertical scanning)
5 Rainbow chart (horizontal scanning
direction)
For checking color displacement
(Horizontal scanning)
6 Grid Bk For checking geometric characteristics
and thin lines
T-6-1