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OPERATIONS AND TIMING
COPYRIGHT
©
1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
3. AE Adjustment
The machine’s AE adjustment may be performed
in service mode, and it consists of the following
three:
• automatic adjustment of the lamp intensity during
AE scanning (No. 301)
• reference point adjustment for the copy density
(developing bias) for AE mode (No. 302)
• slope adjustment for the copy density (developing
bias) for AE mode (No. 303)
Item
No. 301
No. 302
No. 303
Remarks
Automatically adjusted so
that copy density 5 is
attained when the Test
Chart is copied.
qIf the setting is decreased
in service mode, the AE
copy will be darker.
wIf the setting is increased
in service mode, the AE
copy will be lighter.
Default: 0
Settings:-26 to +26
qIf the setting is increased
in service mode, the
copies of a newspaper
will be light.
wIf the setting is decreased
in service mode, the
copies of a newspaper
will be darker.
Default: 0
Settings:-26 to +26
Function
Automatic
adjustment of
lamp intensity
during AE
scanning
Reference point
adjustment for the
copy density
(developing bias)
for AE mode
Slope adjustment
for the copy
density
(developing bias)
for AE mode
Adjustments
Table 3-302
Note:
After AE adjustment with Test Chart NA3, using AE mode, density adjustment should show “5”. In non-
AE mode, using NA3, density “5” must be appropriate (adjusted with VR850).
Light
Copy
density 5
Dark
Test Chart
9
Original
density
➀
➁
Newspaper
Light
Copy
density 5
Dark
Test Chart
9
Original
density
➀➁
Light
Copy
density 5
Dark
Test Chart
9
Original
density