3) Check the main scanning direction distortion.
If the four angles of the copy are right angles, there is no distor-
tion.
If there is any distortion in the sub scanning direction, perform the
following procedures.
4) Check the distortion difference (distortion balance) between the
right and the left sides.
If Lc = Ld, the image distortions of the right and the left sides are
equal to each other.
If the above condition is satisfied go to procedure 9).
If the above condition is not satisfied, perform the following proce-
dures.
5) Check the height of the scanner rail on the rear frame side.
If the scanner rail heights (on the right and the left sides) from the
scanner chassis level are not 9.0mm, adjust so that they are
9.0mm.
6) Set the test chart made in procedure 1) on the document table,
and make a copy on A4 (11"
×
8.5") paper.
7) Check the distortion difference (distortion balance) between the
right and the left sides.
If Lc = Ld, the image distortions of the right and the left sides are
equal to each other.
If the above condition is satisfied go to procedure 9).
If the above condition is not satisfied, perform the following proce-
dures.
8) Change the height balance of the scanner rail on the front frame
side.
Repeat procedures 6)
∼
8) until the image distortion difference
(distortion balance) becomes zero.
9) If the image distortion difference becomes zero, change the over-
all height of the front frame side scanner rail.
10) Set the test chart made in procedure 1) on the document table
and make a copy on A4 (11"
×
8.5") paper. Check that the main
scanning direction distortion is within the specified range.
Repeat procedures 9)
∼
10) until the main scanning direction dis-
tortion is within the specified range.
∗
Preliminary work
JOB No.
Content
ADJ M2/ADJ 2
Copy sub scanning direction distortion
∗
After-work
JOB No.
Content
ADJ M3
Copy magnification ratio adjustment
∗
Necessary tool
Name
Scale
Parts code/Price rank
—
ADJ M3
Copy magnification ratio adjustment
Content
Preliminary
work
After-
work
JOB No
JOB No
ADJ M3
Copy
magnification
ratio adjustment
ADJ 1 Main scanning
direction
magnification
ratio (focus,
resolution)
adjustment
ADJ M3/
ADJ 3
ADJ M4/
ADJ 2
ADJ 2 Sub scanning
direction copy
magnification
ratio adjustment
ADJ M4/
ADJ 1
ADJ 1
Copy focus (resolution), main scanning
direction copy magnification ratio
adjustment
∗
Location
Copy A
Copy B
Ld
Lc = Ld
Lc
Ld
Lc
Lc Ld
Though there is some distortion,
there is no difference between the
right and the left distortions.
There is some difference between
the right and the left distortions
9mm
ADJ M4
FO-3800M
7 – 8
Содержание FO-3800M
Страница 115: ...S001 P001 S001 P007 CLN S001 P003 S001 P005 S001 P002 S001 P006 S001 P004 CLN FO 3800M 9 4 ...
Страница 142: ...S009 Ua002 S009 Ua003 S009 Ua004 S009 Ua005 S009 Ua006 S009 Ua001 S009 Ua001 002 S009 Ua001 001 FO 3800M 9 31 ...
Страница 174: ...SMP1 SMP2 FO 3800M 10 25 ...
Страница 175: ...SMP3 SMP4 FO 3800M 10 26 ...
Страница 176: ...SMP5 SMP6 a b D FO 3800M 10 27 ...
Страница 177: ...SMP7 SMP8 FO 3800M 10 28 ...
Страница 178: ...SMP9 SMP10 SMP11 Streaks and dots in the pitch of about 78mm Streaks and dots in the pitch of about 45mm FO 3800M 10 29 ...