Lens Unit Attachment Reference - Sharp AL-1000 Service Manual

4) Measure the length of the copied scale image.
5) Calculate the sub scanning direction copy magnification
ratio.
Sub scanning direction copy magnification ratio
× 100 (%)
Copy image dimension
=
Original dimension
6) Check that the actual copy magnification ratio is within
the specified range. (100 ± 1.0%).
If it is not within the specified range, perform the following
procedures.
7) Execute SIM 48-1 to select the sub scanning direction
copy magnification ratio adjustment mode.
To select the adjustment mode, use the copy mode
select key. (Photo exposure lamp ON)
8) Enter the new set value of sub scanning direction copy
magnification ratio with the copy quantity set key, and
press the COPY button.
Repeat procedures 1) — 8) until the sub scanning direction
actual copy magnification ratio in 100% copying is within the
specified range.
When the set value is changed by 1, the magnification ration
is changed by 0.1%.
mm
10 20 100 110
1/2mm
mm
10 20 100 110
1/2mm
Comparison point
Reference
110
Original (Scale)
HARDDENCD
STAINLESS
JAPAN
150
120 130 140
Shizuoka
HARDDENCD
STAINLESS
JAPAN
150
120 130 140
Shizuoka
Copy

(3) Lens unit attachment reference

Attach the lens unit so that the lens unit number on the lens ad-
justment plate is aligned with the scribe line on the base plate.
Example: Lens unit number –2.8
Attach the lens unit at 2 scales in the paper exit
direction from the reference line.
Note: Never touch the other screws than the unit attach-
ment screw.
The lens unit is supplied only in a whole unit.
9-6
AL-1000/1010
Paper feed
direction
Lens unit number
(–) direction
Reference line (0)
(+) direction