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4) Loosen the set screw of the scanner drive pulley which is not in
contact with No. 2/3 mirror base unit positioning plate.
5) Without moving the scanner drive pulley shaft, manually turn the
scanner drive pulley until the positioning plate is brought into con-
tact with No. 2/3 mirror base unit, then fix the scanner drive pulley.
tact with No. 2/3 mirror base unit, then fix the scanner drive pulley.
6) Put No. 2/3 mirror base unit on the positioning plate again, push
the projections on the front frame side and the rear frame side of
the copy lamp unit to the corner frame, and tighten the wire fixing
screw.
the copy lamp unit to the corner frame, and tighten the wire fixing
screw.
(3) Main scanning direction (FR direction) distortion adjustment
This adjustment must be performed in the following cases:
● When the mirror base drive wire is replaced.
This adjustment must be performed in the following cases:
● When the mirror base drive wire is replaced.
● When the lamp unit, or No. 2/3 mirror holder is replaced.
● When a copy as shown is made.
1) Set A3 (11"
× 17") white paper on the original table as shown
below.
2) Open the original cover and make a normal (100%) copy.
3) Measure the width of the black background at the lead edge and
3) Measure the width of the black background at the lead edge and
at the rear edge.
If the width (La) of the black background at the lead edge is equal
that (Lb) at the rear edge, there is no need to execute the follow-
ing procedures of 4)
that (Lb) at the rear edge, there is no need to execute the follow-
ing procedures of 4)
∼ 7).
4) Loosen the mirror base drive pulley fixing screw on the front frame
side or on the rear frame side.
● When La < Lb
Turn the mirror base drive pulley on the front frame side in the
arrow direction A. (Do not move the mirror base drive pulley
shaft.)
arrow direction A. (Do not move the mirror base drive pulley
shaft.)
● When La > Lb
Turn the mirror base drive pulley on the front frame side in the
arrow direction A. (Do not move the mirror base drive pulley
shaft.)
arrow direction A. (Do not move the mirror base drive pulley
shaft.)
5) Tighten the mirror base drive pulley fixing screw.
Lb
La
Original
Copy
Paper exit
direction
direction
Fit the paper edge and
the glass holding plate edge.
the glass holding plate edge.
A3 (11" x 17") white paper
Glass holding plate
Allow a little space.
Paper exit direction
La: Lead edge black background width
Lb: Rear edge black background width
Lb: Rear edge black background width
A
B
Rear side
Front side
DM-2000
6 – 5
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