
MX-M700N ADJUSTMENTS 6 – 15
4)
Make a normal copy on A4 paper.
5)
Compare the copied image of the scale and the actual scale
length in terms of length.
If the copied image of the scale is of almost the same length as
the actual scale but is not satisfactorily focused, do the follow-
ing steps.
6)
Remove the table glass and dark box cover.
7)
To prevent the CCD unit optical axis from being deviated, mark
the CCD unit base as illustrated below.
8)
Loosen two fixing screws of the CCD unit.
*
The screws cross-marked in the illustration must not be
loosened.
Loosening these screws could possibly change the CCD
unit base optical axis. Once the optical axis has been
changed, it cannot be corrected through on-site adjust-
ments. Solving such a problem requires the replacement of
the entire scanner unit.
9)
Slide the CCD unit in the arrow direction (CCD sub-scanning
direction) to change its mounted position.
If the copied image is not satisfactorily focused and larger than
the original, slide the unit in direction B.
If the copied image is not satisfactorily focused and smaller
than the original, slide the unit in direction A.
* After adjusting the CCD unit position, fix the CCD unit so
that it is in parallel with the marker line added in step 7,
referring to the graduations on the front and rear frames
sides of the CCD unit base.
Repeat steps 4 to 9 until the copied image of the scale is of almost
the same size as the actual scale and the image is satisfactorily
focused.
5-B
Adjust the image focus in DSPF back-face
mode (CIS)
This adjustment is needed in the following situations:
* The CIS unit has been removed.
* The CIS unit has been replaced.
* Copied/scanned/faxed images are not correctly focused.
* The DSPF unit has been removed.
* The DSPF unit has been replaced.
1)
Make a duplex copy in DSPF mode.
2)
Make sure that the copied image on the back side of the paper
is satisfactorily focused.
If the image is not satisfactorily focused, do the following
steps.
3)
Remove the rear frame and front frame cabinet of the DSPF
unit.
4)
Adjust the focus by turning the CIS focus adjusting screws on
the front and rear frame sides, respectively.
10
20
90
100
110
10
20
90
100
110
0.8mm
100mm scale
(Original)
Copy image
(1mm (1%) shorter
than the original)
B
A