Read Sharp AL-1566 (serv.man12) Service Manual online
AL-1556/1566 ADJUSTMENTS 9 - 4
C. Necessary tool for copy density adjustment
• One of the following test charts:
UKOG-0162FCZZ, UKOG-0089CSZZ, KODAK GRAY SCALE
• B4 (14" x 8 1/2") white paper
• The user program AE setting should be "3."
Test chart comparison table
D. Features of copy density adjustment
For the copy density adjustment, the image data shift function provided
in the image process LSI is used.
in the image process LSI is used.
List of the adjustment modes
E. Copy density adjustment procedure
The copy density can be adjusted in 300dpi or in 600dpi.
For selection of modes, use the copy mode select key.
(1) Test chart (UKOG-0162FCZZ) setting
1) Place the test chart so that its edge is aligned with the A4 (Letter)
reference line on the document table. Then place a A4 (14" x
8 1/2") white paper on the test chart and close the document cover.
8 1/2") white paper on the test chart and close the document cover.
(2) Perform the adjustment in each mode.
1) Execute TC 46-01 (300dpi). To adjust in 600dpi, execute TC 46-
02.
2) Select the mode to be adjusted with the exposure mode select key.
Set the exposure level to 3 (center) for all adjustment. (Except for
the auto mode.)
the auto mode.)
3) Make a copy.
Check the adjustment level (shown in the above table) of the
exposure test chart (Sharp Gray Scale).
exposure test chart (Sharp Gray Scale).
(When too bright): Decrease the value displayed on the copy quantity
display.
(When too dark):
Increase the value displayed on the copy quantity
display.
display.
* The value can be set in the range of 1 - 99.
UKOG-
0162FCZZ
DENSITY
No.
0162FCZZ
DENSITY
No.
1
2
3
4
5
6
7
8
9
10
W
UKOG-
0089CSZZ
DENSITY
No.
0089CSZZ
DENSITY
No.
0.1
0.2
0.3
0.5 1.9
0
KODAK
GRAY
SCALE
GRAY
SCALE
1
2
3
4
19
A
Auto Mode
Brightness 1 step only
Manual Mode
Brightness 5 steps. Adjustment of only the center
brightness is made.
brightness is made.
Photo Mode
Brightness 5 steps. Adjustment of only the center
brightness is made.
brightness is made.
Manual T/S
mode
mode
Brightness 5 steps. Adjustment of only the center
brightness is made.
brightness is made.
T/S Auto mode
Brightness 1 step only
Main code
Sub code
Resolution for copy density adjustment
46
01
300dpi
02
600dpi
1
10
W
2
3
4
5
6
7
8
9
White paper
Test chart
Test chart
Adjustment
mode
Display
item
LED
Sharp gray chart
adjustment level
Auto mode
AE
COPY mode lamp
"3" is slightly
copied.
copied.
Text mode
TEXT
PRINT mode lamp
"3" is slightly
copied.
copied.
Photo mode
PHOTO SCAN mode lamp
"3" is slightly
copied.
copied.
Text T/S mode
TSTXT
PRINT mode lamp
SCAN mode lamp
SCAN mode lamp
"3" is slightly
copied.
copied.
Auto T/S mode
TSAE
COPY mode lamp
SCAN mode lamp
SCAN mode lamp
"3" is slightly
copied.
copied.
Sharp Gray Scale adjustment level
Non toner
save mode
save mode
Toner save
mode
mode
(2) Mode select key
TEXT
| | | | |
| | | | |
(1) Exposure mode, level display
1
10
W
2
3
4
5
6
7
8
9
Slightly copied.
Not copied.
1
10
W
2
3
4
5
6
7
8
9
Slightly copied.
Not copied.
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