Sharp SF-1014 Service Manual page 81

Purpose/kind Section
Adjustment Optical unit
Main Sub
code code
46 1 Used to adjust the copy density (exposure level) and the copy density gradient
(exposure gradient) in each copy mode.
The exposure level is changed by changing the copy lamp applying voltage.
The adjustment points are exposure levels "1" and "5" in each copy mode.
The copy density (exposure level) and the copy density gradient (exposure
gradient) can be adjusted arbitrarily.
(Operation/procedure)
When the simulation key operation is performed, the currently set exposure
level will be displayed on the COPIES SELECTED display.
Select exposure level "1" or "5" with the copy density adjustment key, and
enter the set value with the numeral keys and press the print button. Then the
set value is stored.
To select each copy mode, use the copy mode key.
Original Normal mode Non-toner-save mode
table copy
mode
Photo mode
Auto mode
Copy density level (exposure level (copy lamp applying voltage) to operation
panel density display level)
Great Light
Copy
Exposure
density
Small Dark
( ): 200V system
In the manual copy mode and the photo copy mode
Set point A (exposure level (copy lamp applying voltage) at copy density level
"1") and point B (exposure level (copy lamp applying voltage) at copy density
level "5"), and the exposure gradient (copy density gradient) and the exposure
level (copy density level) will be set.
A – B characteristic: A great exposure gradient (copy density gradient).
A' – B' characteristic: A small exposure gradient (copy density gradient).
Point A and point B can be set arbitrarily.
Contents
Description
Copy density adjustment mode
Toner save mode
Non-toner-save mode
Non-toner-save mode
Toner save mode
MAX 85V (170V)
A
Copy lamp
A'
application
voltage
MIN 40V (80V)
1 2 3
Density display level in the operation panel
8 – 4
Ref. page
7-26
Exposure
Sim No
level
1 5 46-1
1 5
1 5
1 5
1 5
B'
B
4 5