Service manual

FO-DC550 TEST COMMAND, FAX SOFT SWITCH, TROUBLE CODES 10 - 17
46 01 Copy density adjustment
(300dpi) (EXP.LEVEL 300)
[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)
The setting procedure of the magnification ratio is the same as that to copy operation.
[Operation]
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.
Main
code
Sub
code
Contents Details of function/operation
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
1) Initial display
2) [
←
] Mode selection
2) [
→
] Mode selection
3) [10KEY] Value entry
4) [START] Fixing and printing value (No
change on the LCD)
∗
Print is started in the set mode.
4) To fix the set value without printing, press
[Enter] key.
∗
To cancel manual feed paper empty MSG,
press any key.
∗
When performing the AE mode exposure
adjustment, place the test chart on the docu-
ment table so that the center area of 10cm is
not covered.
46-01 EXP.LEVEL 300
AE 100% 50( 1-99)
46-01 EXP.LEVEL 300
TSAE 100% 50( 1-99)
46-01 EXP.LEVEL 300
TEXT 100% 50( 1-99)
46-01 EXP.LEVEL 300
AE 100% 62( 1-99)
46-01 EXP.LEVEL 300
AE 100% 62( 1-99)
46-01 EXP.LEVEL 300
AE 100% 62( 1-99)
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