Scaling (Manual) - Canon imageFORMULA DR-G2140 Service Manual

CHAPTER 5 TROUBLESHOOTING

2. Scaling (Manual)

Scaling adjustment is normally performed
in automatic mode "All". This manual adjust-
ment is for manually adjusting the scale pa-
rameter of an image against the result of au-
tomatic mode. This adjustment will be End.
with a front side image.
 Types
There are 2 types of scaling adjustment.
1) Factory setting at separation mode
(Parameter range: -1.0 to 1.0)
2) User setting
(Parameter range: -3.0 to 3.0)
Figure 5-234
There is a user scale setting to enable the
user to re-adjust after the factory shipping.
The setting can be configured from the
maintenance tab in "Canon imageFORMULA
driver setting tool". That value is linked with
the "User setting" in this mode.
 Adjustment sheet
You can use a sheet that is printed any pat-
tern to be judged a gap of position of the
leading and trailing edges. Therefore you
can use the test sheet; TKM-02711, ad-
justment sheet; 6Y3-6001 that is used for
the automatic adjustment, or others.
5-20
COPYRIGHT © CANON ELECTRONICS INC. 2018
 Operation Procedure
In this section, it is described using the ad-
justment sheet; 6Y3-6001 and for the fac-
tory setting at separation mode.
Also, this is a case that adjustment value
is unknown and you need to judge it using
the service tool. If you have known adjust-
ment value, you can change value at first.
1) Clean the feed path, roller, and scanning
glass.
2) Select the [Edit] button.
Note: If you adjust the scaling after replacing
the control PCB or want to set the scale
parameter that is displayed in the user
operating screen to "0.0", you should
first set all two of the parameters to "0.0"
and select the [Apply] button.
3) Place a single adjustment sheet in center
with vertical direction and printed side
should be up side like a figure below.
Make sure to set the document guides so
they are fit with the adjustment sheet to
prevent skews.
Figure 5-235
CANON DR-G2140/G2110/G2090 FIRST EDITION