Service manual

AL-2030/2040CS/2050CS SIMULATION, TROUBLE CODES 10 - 19
46 18 Image contrast adjustment
(300dpi)
[Function]
Contrast is set for each mode.
When this simulation is executed, the current se value is displayed in 2 digits (Default: 50).
Change the set value and press [START] key to make a copy under the set value.
When the set value is increased, the contrast becomes higher. When the set value is
decreased, the contrast becomes lower.
In this case, only Exp.3 copy is made. When, however, the setting is made to make higher con-
trast, Exp.1 and Exp.5 copies also become in higher contrast. When made to a lower contrast,
Exp1. and Exp.5 copies become lower contrast, too.
Press [Exposure mode selector] key (or [ ] [ ] key for the AL-2050CS) to switch the mode.
The set value of the selected mode is displayed on the LCD/display. (Adjustment value: 1 – 99)
* No density display on LCD/display.
[Operation]
The operation is similar to simulation 46-01.
19 Exposure mode setup [Function]
<
γ table setting>
When this simulation is executed, the code number of the current set gamma table is displayed.
(Default: 2)
Enter the code number corresponding to the desired gamma table, and press [Exposure mode
selector] key (or [ ] [ ] key for the AL-2050CS) to change the mode and write into the
EEPROM.
<AE operation mode>
When setting the
γ table, press [Exposure mode selector] key (or [ ] key for the AL-2050CS)
to change to the AE operation mode, and the current set code number of the AE operation
mode is displayed. (Default: 0)
Enter the code number corresponding to the desired AE operation mode and press [Exposure
mode selector] key (or [ ] [ ] key for the AL-2050CS) to change the mode and write into
the EEPROM.
<PHOTO image process setting>
When [Exposure mode selector] key (or [ ] key for the AL-2050CS) is pressed in AE opera-
tion mode setting, the mode is changed to the PHOTO image process setting and the code
number of the current set PHOTO image process setting is displayed. (Default: 1)
Enter the code number corresponding to the desired PHOTO image process setting and press
[Exposure mode selector] key (or [ ] [ ] key for the AL-2050CS) to change the mode and
write into the EEPROM.
[Operation]
The operation is similar to simulation 43-01.
Main
code
Sub
code
Contents Details of function/operation
Mode
Display item
(AL-2050CS)
LED
(AL-2050CS)
Display lamp
(AL-2030/2040CS)
Default
AE mode (300dpi) AE COPY mode lamp AE mode lamp 50
TEXT mode (300dpi) TEXT PRINT mode lamp TEXT mode lamp 50
PHOTO mode PHOTO SCAN mode lamp PHOTO mode lamp 50
TS mode (TEXT)
(300dpi)
TSTXT PRINT mode lamp
SCAN mode lamp
TEXT mode lamp
PHOTO mode lamp
50
TS mode (AE)
(300dpi)
TSAE COPY mode lamp
SCAN mode lamp
AE mode lamp
PHOTO mode lamp
50
Mode
Display item
(AL-2050CS)
Display lamp
(AL-2030/2040CS)
Code
number
Setting content Remark
γ GAMMA OFF
1
Image quality priority
mode
2
Toner consumption
priority mode
Default
AE AE AE
0 Lead edge stop Default
1 Real time process
PHOTO PHOTO PHOTO
1 Error diffusion process Default
2 Dither process