Kyocera ECOSYS M3540dn Operation Manual page 184

Fax Settings > Unusable Time
NOTE
If the same time is set as the start time and end time, you cannot use all day.
4
Press the [OK] key.
Set the cancel code
Specify the code to temporarily cancel the unusable setting during unusable time.
1
Use the numeric keys to enter Unlock Code (0000 to 9999)
2
Press the [OK] key.
NOTE
To use the machine temporarily during unusable time, enter the Unlock Code and press
[Login].
Now, the machine is
prohibited to be
used.
23:00 08:30
Code
Unlock code:
(0000 - 9999)
2
1
Exit
8-19
3
0000
Login