COPYRIGHT
©
1998 CANON INC. CANON NP7161/NP7160 REV.0 AUG. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
CHAPTER 10 TROUBLESHOOTING
10–21
c. AE Slope Adjustment
If an optimum image cannot be obtained by executing ‘301’ (AE auto adjustment) in service
mode, perform the following:
1) Place a newspaper on the copyboard glass, and select AE and Direct.
2) Make a copy, and check the copy image.
3) Select ‘303’ (AE slope adjustment) in service mode.
• The copy counter will indicate the present setting.
4) Change the setting using the keypad or +/- key.
[1] A higher setting will increase the intensity, making the copy image lighter.
[2] A lower setting will decrease the intensity, making the copy image darker.
Figure 10-227
5) Press the Start key to store the new setting.
• Repeat steps 2) through 5) until an optimum image is obtained.
6) Press the Reset key to end service mode.
[1]
[2]
Test
Chart Newspaper Original
density
Intensity (AE)
Copy
image