Canon NP6621 Service Handbook page 32

STANDARDS AND ADJUSTMENTS
Item Function
No. 301 Automatic lamp
intensity adjustment
for AE scans
No. 302 Copy density (devel-
opment bias) refer-
ence point adjustment
for AE mode
No. 303 Copy density (devel-
opment bias) slope
adjustment for AE
mode
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).
2–18
Description
9
Lighter
Copy
density 5
Darker
Test Chart
9
Lighter
Copy
density 5
Darker
Test Chart
9
Lighter
Copy
density 5
Darker
Test Chart
Table 2-201
The lamp intensity is
automatically adjusted so
that the copies of the
Test Chart will be made
at density 5.
Density of
original
w q
Density of
default: 0
original
range: –26 to +26
q
w
default: 0
News- Density of
paper original
range: –26 to +26
Remarks
A lower setting in
service mode causes
the AE copies to be
darker.
A higher settings in
service mode causes
the AE copies to be
lighter.
A higher setting in
service mode causes
copies of a newspa-
per to be lighter.
A lower setting in
service mode causes
copies of a newspa-
per to be darker.