Sharp FO-3800M, Руководство по обслуживанию

Страница: 75 / 180

(The currently set adjustment value is displayed on the copy quan-
tity display.)
3) Set the value to "50" and press the start button.
(the adjustment value is stored and a copy is made.)
When the set value is increased, the image lead edge position is
shifted forward for the paper lead edge position.
When the set value is decreased, the image lead edge position is
shifted backward for the paper lead edge position.
4) Place the scale at the document table lead edge reference in the
sub scanning direction, and place a white paper (A4, 11"
×
8.5") at
a slightely shifted position to the right of the scale.
5) Select the adjustment mode image lead edge reference position
(image scan start position) with the copy picture quality mode
select key.
(The currently set adjustment value is displayed on the copy quan-
tity display.)
6) Press the start button. (Make a copy with the document cover
open.)
(A copy is made.)
7) Measure the distance between the paper lead edge position and
the copy image lead edge reference position (scale image lead
edge).
If the scale image is cut halfway, assume the virtual lead edge of
the scale image for measurement.
If the distance between the paper lead edge and the image lead
edge is not 0
±
1.5mm, change the set value and press the start
button.
(the adjustment value is stored and a copy is made.)
When the set value is increased, the image lead edge position is
shifted forward for the paper lead edge position.
When the set value is decreased, the image lead edge position is
shifted backward for the paper lead edge position.
(Note)
If this adjustment value is improper, the copy image lead edge
position varies when the copy magnification ratio is chanfed.
8) Select the adjustment mode lead edge void area (image loss) with
the copy picture quality mode select key.
(The currently set adjustment value is displayed on the copy quan-
tity display.)
9) Press the start button.
(A copy is made.)
10) Measure the lead edge void area (image loss).
If the distance between the paper lead edge and the copy image
lead edge is not 2.5
±
15mm, change the set value and press the
start button.
11) Place a white paper (A4, 11"
×
8.5") at a slightely shifted position
to the left of the scale.
12) Select the adjustment mode rear edge void area with the copy
picture quality mode select key.
A6
B6
51/2
A5
B5
81/2
A4
Scale
Allow a clearance.
White paper
(A4, 11" x 8.5")
10 20 30 40
50
0mm
Paper lead edge
Image lead edge
Copy scale image
10 20 30 40
50
2.5mm
Void area
Paper lead edge
Copy scale image
Image loss
A6
B6
51/2
A5
B5
81/2
A4
White paper (A4, 11" x 8.5")
(Slightly shifted to the left.)
FO-3800M
7 – 13