Kyocera Mita KM-1530 Service Manual page 119

2AV/X
Maintenance
item No.
U091 3. Press the start key. Scanning is performed under the selected conditions and the result is displayed.
(cont.) 4. Change the measurement point by lighting a copy exposure indicator or making one flash using the copy
exposure adjustment keys. For the correspondence between the measurement points and the copy
exposure indicators, see Figure 1-4-11.
1-4
When scanning is performed before shading, the scan value at the machine center should be slightly
different from those at the machine front and rear. When scanning is performed after shading, there should
be no difference between respective values. Any differences between the values at machine front and rear
indicates that scanner problem causes the fixing unevenness.
If the displayed results indicate no shading problems, the fixing unevenness (uneven copy density) is
caused by factors other than in the scanner section (shading or CCD).
If a black line appears, the cause may be assumed based on the results of the scanning operation before
shading: if a white line appears, they may be assumed based on the results of the scanning operation after
shading. Note that depending on the thickness and location of the black or white line, it may not be possible
to use this method to determine the cause. This is because the displayed values obtained from scanning at
the limit of nine points are insufficient to provide significant information.
5. Press the stop/clear key. The selected item appears.
Completion
Press the stop/clear key while a selection item is displayed. The indication for selecting a maintenance item No.
appears.
1-4-70
Description
20 mm from the machine left
200 mm from the machine left
400 mm from the machine left
100 mm from the machine
center toward machine front
Point Copy exposure indicator
1
Exp. 1 lights.
2
Exp. 2 lights.
3
Exp. 3 lights.
4
Exp. 4 lights.
5
Exp. 5 lights.
6
Exp. 1 flashes.
7
Exp. 2 flashes.
8
Exp. 3 flashes.
9
Exp. 4 flashes.
Figure 1-4-11
1 2 3
4 5 6
7 8 9
Machine center
100 mm from machine
center toward machine rear