CHAPTER 5 TROUBLESHOOTING
Note:
If the position of the leading edge is
incorrect or the image is skewed,
perform the scan again.
a. Scale parameter adjustment
Performs adjustment using the front
side image. The same values are applied
to the reverse side image as the front side.
If the image leading edge position is
different, perform registration adjustment
first.
Adjustment sheet
Prepare a single sheet of A4 or LTR
size paper printed with a pattern that
makes the positions of the leading and
trailing edges clear.
Service tool: You can use the
TKM-0271 test sheet or a hand-made
test sheet as shown below.
Figure 5-230
Figure 5-229
Operation Procedure
1)
The [Scanning Control] screen is
displayed.
2) Place a single adjustment sheet, and
align the document guides.
You should place the sheet with the
patterned face towards you and the leading
edge at the bottom (inside the machine).
Figure 5-231
3) Set the resolution and size, and then
click the [Scan] button.
6) Check the trailing edge image next and
set the adjustment values. For example if
you want to extend by 2.0mm with A4
size, then since 2.0÷297 = 0.67%, set the
value of [User Scale Parameter] to “0.67”.
After you have set the value, click the
[Set] button.
Note:
Paper size is “A4” size or “Letter”
size.
4) The scanned image is displayed. (Refer
to Figure 5-231)
5) Use [Zoom] to enlarge the leading edge
of the image and ensure that the position
of the leading edge is correct. (Refer to
Figure 5-232)
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CANON ELECTRONICS INC. 2011 CANON DR-C125 FIRST EDITION
5-15
