Service manual

AL-1651CS TEST COMMAND, TROUBLE CODES 10 - 18
46 19 Exposure mode setting (AE
MODE)
[Function]
<
γ table setting>
When this test command is executed, the code number of the current set gamma table is displayed.
(Default: Japan -1/Ex Japan -2)
Enter the code number corresponding to the desired gamma table, and press [
←/→] key to change
the mode and write into the EEPROM.
<AE operation mode>
When setting the
γ table, press [→] key 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 [
←/→] key to
change the mode and write into the EEPROM.
<PHOTO image process setting>
When [
→] key is pressed in AE operation 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: 0)
Enter the code number corresponding to the desired PHOTO image process setting and press [
←/→]
key to change the mode and write into the EEPROM.
[Operation]
20 SPF exposure correction
(EXP.LEVEL SPF)
[Function]
Used to adjust the exposure correction amount in the SPF mode. The adjustment is made by adjust-
ing Vref voltage variation for the OC mode.
When this test command is executed, the current set value is displayed in 2 digits (Default: 50).
Change the set value and press [START] key to save the setting and make a copy.
When the set value is increased, copy becomes darker. When the set value is decreased, copy
becomes lighter. (Adjustment range: 1 – 99)
[Operation]
The operation is similar to test command 46-01.
Main
code
Sub
code
Contents Details of function/operation
Mode Display item Code number Setting content Remark
γ GAMMA
1 Image quality priority mode Japan default
2 Toner consumption priority mode EX Japan default
AE AE
0 Lead edge stop Default
1 Real time process
PHOTO PHOTO
1 Error diffusion process Default
2 Dither process
1) Initial display
<
γ table setting>
2) [
→] Mode selection
2) [
←] Mode selection
3) [10KEY] Value input
4) [ENTER/START] Save the
set value. The machine
goes to the sub code entry
standby mode.
46-19 AE MODE
GAMMA 2( 1-2)
46-19 AE MODE
AE 0( 0-1)
46-19 AE MODE
PHOTO 1( 1-2)
46-19 AE MODE
AE 1( 0-1)
Mode Display item Default Remark
SPF SPF 50