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COPYRIGHT © 2003 CANON ELECTRONICS INC. CANON DR-6080/9080C REV.0 SEPT. 2003
CHAPTER 2 FUNCTIONS & OPERATION
3) Automatic Brightness Adjustment
This adjustment automatically controls the
brightness of the scanned image according to the
density of the document’s background in the
simple binary mode.
The brightness is adjusted by assessing the
brightness line by line, and adjusting the level for
the next line to be scanned.
This process is known as ABC (Auto
Back-ground Control).
When the number of pixels of specified
brightness in a line exceeds the predetermined
value for the document size, the brightest output
is transformed gradually, line by line.
Fig. 2-516 shows the difference in output
when reading a text document with a colored
background.
White
(255)
Black
(0)
White
(255)
YB
YA
Slice level
ABC
ABC
X
Before conversion
After con
v
ersion
Document
ABC selected
Output
ABC
not selected
ABC not selected
ABC selected
Fig. 2-516
Summary of Contents for DR-6080
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Page 195: ...COPYRIGHT 2003 CANON ELECTRONICS INC CANON DR 6080 9080C FIRST EDITION OCT 2003 vii ...
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Page 284: ...38 Chapter 3 Software Closing CapturePerfect 1 Select Exit from the File menu ...
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Page 352: ...1 Imprinter for DR 6080 9080C Installation Procedure IMS Product Planning Dept ...
Page 355: ...4 3 Remove the left cover 4 screws Remove these screws x4 ...
Page 359: ...8 7 Insert it firmly to the back and fix it with 1 screw M3x6 ...
Page 366: ...15 14 Replace the cable to cable clamp and the document eject cover to the original position ...