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G. Vertical skew adjustment
a. This adjustment is performed when a skew copy is made as
shown below or when a part of the mirror base drive wire or the
No. 1/2 mirror base is replaced.
<Adjustment procedure>
(1) Put an A3 (11" ×17") white paper on the original glass neatly to
the glass holding plate and the front frame side as shown
below.
(2) With the original cover open, make a normal (100%) copy on
an A3 (11" ×17") white paper.
(3) Measure the width of the black background at the front side
and the rear side.
(4) Loosen the fixing screw of the rear frame side mirror base
drive pulley.
When La > Lb, rotate the rear frame side mirror base drive
pulley in the arrow direction A. (Do not move the flange and
the mirror base drive pulley shaft.)
When La < Lb, rotate the rear frame side mirror base drive
pulley in the arrow direction B. (Do not move the flange and
the mirror base drive pulley shaft.)
(5) Tighten the fixing screw of the mirror base drive pulley.
(6) Perform procedures (1) ∼ (3).
(7) If La=Lb is not satisfied, perform procedures (4) and (5). (If
La=Lb, the adjustment is completed.)
Repeat procedures (1) ∼ (6) until La=Lb is satisfied.
H. Horizontal skew adjustment
a. This adjustment is performed in the following cases:
• When a horizontal skew is made.
• When the mirror base drive wire is replaced or its installing
position is changed.
• When the No. 1/2 mirror base is replaced or its installing
position is changed.
• When the No. 2/3 mirror base rail is replaced or its installing
position is changed.
Document Copy
Apply paper front end
to glass retaining plate
Align paper side edge
with front frame
A3-size or 11" x 17" blank paperGlass retaining plate
Paper
feed
direction
Lead edge black background width La
Rear edge black background width Lb
La Lb
A
B
Shaft
(Do not rotate)
Mirror base
drive pully
(Rotate)
Pulley fixing screw (Set screw)
Document Copy
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