Mtf Adjustment; Adjustment Procedure - Canon imageRUNNER ADVANCE 6075 Series Service Manual

MTF Adjustment

The MTF value of the Reader Unit may differ from the factory setting value depending on the
condition of transportation/storage. If the machine is installed without correcting the value, it
may cause an image failure such as moire. Therefore, readjust the MTF value by reading the
MTF adjustment chart at installation as needed.
○: Need adjustment, -: Not need adjustment
Series Model
imagePRESS Simultaneous
1135/1125/1110 Series duplex reading *1
imageRUNNER ADVANCE Copyboard
C5051/C5045/ reading
C5035/C5030 Series
Reverse duplex
reading
Simultaneous
duplex reading
imageRUNNER ADVANCE Reverse duplex
C9075 PRO/9070 PRO/9065 PRO/ reading
9060 PRO/C7065/7055 Series
Simultaneous
duplex reading
imageRUNNER ADVANCE Simultaneous
8105/8095/8085 Series duplex reading
imageRUNNER ADVANCE Reverse duplex
6075/6065/6055 Series reading
Simultaneous
duplex reading
*1: Respond by another adjustment (Refer to the Service Manual).
*2: In the case of using a simultaneous duplex reading model as a copyboard model, B&W
adjustment is also required.
6
Troubleshooting > Image Faults > MTF Adjustment > Adjustment Procedure
MTF Adjustment Type
Copyboard Front side Back side
reading stream stream
reading reading
Color B&W Color B&W Color B&W
- - - - -
○ -*2 - - -
- - ○ - -
- - ○ ○ ○
- - ○ ○ -
- - ○ ○ ○
- - ○ ○ ○
- - ○ ○ -
- - ○ ○ ○
6 Troubleshooting > Image Faults > MTF Adjustment > Adjustment Procedure

■ Adjustment Procedure

1) Obtain the MTF adjustment chart.
-
-
-
○
-
○
○
NOTE:
-
The end with a dark color square will be the trailing edge at reading. When adjusting
the copyboard reading, place the chart on the Copyboard Glass to make the dark color
○
square comes at the right side.
T-6-10
2) Set the MTF adjustment chart.
Description of adjustment
Copyboard reading
Front side stream reading DADF Document Pickup Tray
Back side stream reading
F-6-41
Location to set the chart
Copyboard Glass
DADF Document Pickup Tray (turn over the chart when setting)
6-22
T-6-11
6-22