Service manual

AL-1651CS TEST COMMAND, TROUBLE CODES 10 - 17
46 02 Copy density adjustment
(600dpi) (EXP.LEVEL 600)
[Function]
Copy density is set for each mode.
When this test command 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 copy becomes darker. When the set value is decreased, the
copy becomes lighter.
In this case, only Exp.3 copy is made. When, however, the setting is made to make darker copy,
Exp.1 and Exp.5 copies also become darker. When made to lighter copy, Exp1. and Exp.5 copies
become lighter, too.
Press
[←
/
→
] key to switch the mode. The set value of the selected mode is displayed on the LCD.
(Adjustment value: 1 – 99)
[Operation]
The operation is similar to test command 46-01.
18 Image contrast adjustment
(300dpi) (GAMMA 300)
[Function]
Contrast is set for each mode.
When this test command 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 contrast,
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 [
←/→] key to switch the mode. The set value of the selected mode is displayed on the LCD.
(Adjustment value: 1 – 99)
∗ No density display on LCD.
[Operation]
The operation is similar to test command 46-01.
Main
code
Sub
code
Contents Details of function/operation
Mode Display item Default LED
AE mode (600dpi) AE 50 COPY mode lamp
TEXT mode (600dpi) TEXT 50 PRINT mode lamp
PHOTO mode PHOTO 50 SCAN mode lamp
TS mode (TEXT) (600dpi) TSTXT 50 PRINT mode lampSCAN mode lamp
TS mode (AE) (600dpi) TSAE 50 COPY mode lampSCAN mode lamp
Mode Display item Default LED
AE mode (300dpi) AE 50 COPY mode lamp
TEXT mode (300dpi) TEXT 50 PRINT mode lamp
PHOTO mode PHOTO 50 SCAN mode lamp
TS mode (TEXT) (300dpi) TSTXT 50 PRINT mode lamp
SCAN mode lamp
TS mode (AE) (300dpi) TSAE 50 COPY mode lamp
SCAN mode lamp