Sharp AR-5516, Руководство по обслуживанию

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AR-5520 ADJUSTMENT 6-7
1) Making of a test sheet
Make test sheet by drawing parallel lines at 10mm from the both
ends of A3 (11" x 17") white paper as shown below. (These lines
must be correctly parallel to each other.)
2) Make a normal (100%) copy of the test sheet on A3 (11" x 17")
paper. (Fit the paper edge with the glass holding plate edge.)
3) Measure the distances (La, Lb, Lc, Ld) at the four corners as shown
below.
W hen La = Lb and Lc = Ld, no need to perform the procedures 4) and 5).
4) Move the mirror base F rail position up and down (in the arrow
direction) to adjust.
Note:Do not adjust the rail on the rear side.
If the rail on the rear side is adjusted, a trouble may be caused.
Only the rail on the front side can be adjusted.
<Adjustment specification>
La = Lb, Lc = Ld
5) After completion of adjustment, manually turn the mirror base drive
pulley, scan the mirror base A and mirror base B fully, and check that
the mirror bases are not in contact with each other.
* If the mirror base rail is moved extremely, the mirror base may be in
contact with the frame or the original glass. Be careful to avoid this.
(5) Main scannin g direction (FR direction) ma g nification
ratio adjustment (SIM 4 8 -1)
Note: Before performing this adjustment, be sure to check that the CCD
unit is properly installed.
1) Put a scale on the original table as shown below.
2) Execute SIM 48-1.
3) After warm-up, shading is performed and the current set value of the
main scanning direction magnification ratio is displayed on the
display section in 2 digits.
4) Select the mode and press the [START] key again.
5) Manual correction mode (TEXT indicator ON)
Enter the set value and press the [START] key.
The set value is stored and a copy is made.
10mm
10mm
10mm
10mm
Parallel line
White paper
Parallel line
La
Lb Ld
Lc
Paper exit
direction
W hen La > Lb
Shift the mirror base B rail upward by the half of the
difference of La - Lb.
W hen La < Lb
Shift the mirror base B rail downward by the half of the
difference of Lb - La.
Example:
W hen La = 12mm and Lb = 9mm, shift the mirror
base B rail upward by 1.5mm.
W hen Lc > Ld
Shift the mirror base B rail downward by the half of the
difference of Lc - Ld.
W hen Lc < Ld
Shift the mirror base B rail downward by the half of the
difference of Ld - Lc.
W hen moving the mirror base rail, hold the mirror base rail
with your hand.