![Canon iR4570 Series Service Manual Download Page 182](http://html1.mh-extra.com/html/canon/ir4570-series/ir4570-series_service-manual_4260858182.webp)
Chapter 5
5-14
F-5-14
Be sure to correct the output among the channels using the following service mode items:
-if you have replaced the contact image sensor (CIS) and, as a result, a discrepancy occurs in the output of image
density among channels; or
-if the setting of CCD-LUT is other than '0' and you have replaced the reader controller PCB.
<Service Mode>
for CIS unit gain correction data
COPIER>OPTION>BODY>CCD-LUT
for CCD gain correction
COPIER>FUNCTION>CCD>LUT-ADJ2
(using the D-10 Chart)
5.3.3
Enlargement/Reduction
5.3.3.1
Changing the Magnification in Main Scanning Direction
0006-5724
iR2270 / iR2870 / iR3570 / iR4570
In Book Mode/ADF Mode
The image is read at 100% in main scanning direction, and the magnification is varied by processing the data on the
main controller PCB.
5.3.3.2
Varying the Magnification in Sub Scanning Direction
0006-5725
iR2270 / iR2870 / iR3570 / iR4570
Driver circuit
8
CCD channel x 8
936 pixels
Output
Input
Ideal output characteristics
Actual output characteristics
7
6
5
4
1
Summary of Contents for iR4570 Series
Page 2: ...Download Free Service Manual And Resetter Printer at http printer1 blogspot com ...
Page 6: ...Download Free Service Manual And Resetter Printer at http printer1 blogspot com ...
Page 28: ...Download Free Service Manual And Resetter Printer at http printer1 blogspot com ...
Page 81: ...Chapter 2 Installation ...
Page 82: ......
Page 84: ......
Page 106: ...system setup network Ethernet driver setup auto detect ...
Page 126: ...F 2 94 3 2 3 1 ...
Page 127: ...Chapter 3 Basic Operation ...
Page 128: ......
Page 130: ......
Page 136: ......
Page 137: ...Chapter 4 Main Controller ...
Page 138: ......
Page 140: ......
Page 164: ......
Page 165: ...Chapter 5 Original Exposure System ...
Page 166: ......
Page 213: ...Chapter 6 Laser Exposure ...
Page 214: ......
Page 216: ......
Page 230: ......
Page 231: ...Chapter 7 Image Formation ...
Page 232: ......
Page 236: ......
Page 249: ...F 7 13 1 2 3 4 ...
Page 308: ......
Page 309: ...Chapter 8 Pickup Feeding System ...
Page 310: ......
Page 316: ......
Page 464: ......
Page 465: ...Chapter 9 Fixing System ...
Page 466: ......
Page 501: ...Chapter 10 External and Controls ...
Page 502: ......
Page 506: ......
Page 564: ......
Page 565: ...Chapter 11 MEAP ...
Page 566: ......
Page 568: ......
Page 573: ...Chapter 12 Maintenance and Inspection ...
Page 574: ......
Page 576: ......
Page 612: ......
Page 613: ...Chapter 13 Standards and Adjustments ...
Page 614: ......
Page 616: ......
Page 635: ...Chapter 14 Correcting Faulty Images ...
Page 636: ......
Page 675: ...T 14 22 Notation Description VR201 for factory use ...
Page 676: ......
Page 677: ...Chapter 15 Self Diagnosis ...
Page 678: ......
Page 680: ......
Page 757: ...Chapter 16 Service Mode ...
Page 758: ......
Page 760: ...Contents 16 8 1 COPIER 16 102 16 8 1 1 Copier List 16 102 ...
Page 869: ...Chapter 17 Service Tools ...
Page 870: ......
Page 871: ...Contents Contents 17 1 Special Tools 17 1 17 2 Oils and Solvents 17 2 ...
Page 872: ......
Page 875: ...Oct 8 2004 ...
Page 876: ......