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3–130
OPERATIONS AND TIMING
COPYRIGHT
©
1998 CANON INC. CANON NP6621 REV.0 FEB. 1998 PRINTED IN JAPAN (IMPRIME AU JAPON)
Remarks
The lamp intensity is
automatically adjusted so
that the copies of the
Test Chart will be made
at density 5.
q A lower setting in
service mode causes
the AE copies to be
darker.
w A higher settings in
service mode causes
the AE copies to be
lighter.
default: 0
range: –26 to +26
(see Note.)
q A higher setting in
service mode causes
copies of a newspa-
per to be lighter.
w A lower setting in
service mode causes
copies of a newspa-
per to be darker.
default: 0
range: –26 to +26
DescriptionItem
No. 301
No. 302
No. 303
Function
Automatic lamp
intensity adjustment
for AE scans
Copy density (devel-
opment bias) refer-
ence point adjustment
for AE mode
Copy density (devel-
opment bias) slope
adjustment for AE
mode
Table 3-801
Note: 1. After Adjustment, with test chart NA-3, using AE mode, density adjustment should show ‘5’.
2. In non-AE mode, using NA-3, density ‘5’ must be appropriate (adjusted with VR850).
Test Chart
Density of
original
Lighter
Copy
density 5
Darker
9
News-
paper
w
q
Test Chart
Density of
original
Lighter
Copy
density 5
Darker
9
q
w
Lighter
Copy
density 5
Darker
Test Chart Density of
original
9