[9] ADJUSTMENTS
1. Optical section
A. Copy magnification ratio adjustment
The copy magnification ratio must be adjusted in the main scan-
ning direction and in the sub scanning direction. To adjust, use
SIM 48-1.
(1) Outline
The main scanning (front/rear) direction magnification ratio adjust-
ment is made manually.
The adjustment is made by manual key operations. (In either of the
automatic and manual adjustments, the zoom data register set
value is changed for adjustment.)
The magnification ratio in the sub scanning direction is adjusted by
changing the carriage (scanner) scanning speed.
(2) Main scanning direction magnification ratio
adjustment
a. Cases when the adjustment is required
1) When the main PWB is replaced.
2) When the EEPROM in the main PWB is replaced.
3) When "U2" trouble occurs.
4) When repairing or replacing the optical section.
b. Necessary tools
• Screwdriver (+)
• Scale
c. Adjustment procedure
1) Set the scale vertically on the document table. (Use a long
scale for precise adjustment.)
2) Set the copy magnification ratio to 100%.
3) Make a copy on A4 or 8-1/2" x 11" paper.
4) Measure the length of the copied scale image.
5) Calculate the main scanning direction magnification ratio.
Main scanning direction magnification ratio
6) Check that the copy magnification ratio is within the specified
range. If it is not within the specified range, perform the follow-
ing procedures.
7) Execute SIM 48-1 to select the main scanning direction copy
magnification ratio adjustment mode.
To select the adjustment mode, use the copy mode select key.
In the case of the automatic adjustment, when the START switch is
pressed, the mirror base unit moves to the white plate for shading
to scan the width of the reference line, calculating the correction
value and displaying and storing this value.
After execution of the automatic adjustment, go out from the simu-
lation mode and make a copy to check the magnification ratio.
If the magnification ratio is not in the specified range (100 ± 1.0%),
manually adjust as follows.
8) Enter the new set value of main scanning direction copy mag-
nification ratio with the copy quantity set key, and press the
START button.
9) Change the set value and repeat the adjustment until the ratio
is within the specified range.
When the set value is changed by 1, the magnification ratio is
changed by 0.1%.
(3) Sub scanning direction copy magnification ratio
a. Cases when the adjustment is required
1) When the scanner unit drive section is disassembled or the
part is replaced.
2) When the main PWB is replaced.
3) When the EEPROM in the main PWB is replaced.
4) When "U2" trouble occurs.
b. Necessary tools
• Scale
=
Copy image dimensions
X 100 (%)
Original dimension
Adjustment mode
Lighting lamp
Default
Main scanning direction
magnification ratio adjustment
TEXT lamp ON
50
Sub scanning direction
magnification ratio adjustment
PHOTO lamp ON
50
100
110
120
130
150
140
mm
1/2mm
JAPAN
HARDENED
STAINLESS
Shizuoka
100
110
120
130
150
140
mm
1/2mm
JAPAN
HARDENED
STAINLESS
Shizuoka
110
10
20
10
20
(When a 100mm scale is used as the original.)
Paper feed
direction
Reference
Comparison point
Original (Scale)
Copy
Y109500-5 Service Manual 9-1
Summary of Contents for d-Copia 200D
Page 1: ...d Copia 200D d Copia 201D Digital Copier SERVICE MANUAL Code Y109500 5...
Page 6: ...This page is intentionally left blank...
Page 8: ...This page is intentionally left blank 1 2 Service Manual Y109500 5...
Page 12: ...This page is intentionally left blank 2 4 Service Manual Y109500 5...
Page 22: ...This page is intentionally left blank 4 8 Service Manual Y109500 5...
Page 28: ...This page is intentionally left blank 5 6 Service Manual Y109500 5...
Page 86: ...This page is intentionally left blank 10 20 Service Manual Y109500 5...
Page 94: ...This page is intentionally left blank 12 6 Service Manual Y109500 5...
Page 96: ...UPDATING STATUS DATE UPDATED PAGES PAGES CODE 05 2008 1ST EDITION 96 Y109500 5...
