Using Flash For All Shots (Forced Flash Mode); Preventing Flash Firing In Dark Conditions (Flash Off Mode) - Olympus CAMEDIA C-2040 Zoom Instructions Manual

Selecting the flash firing pattern

Using flash for all shots (Forced Flash mode)

Use this mode when you want the flash to fire every time you take a picture.
This mode can be used pick out the subject's face when it is shaded, as for
shots taken in the shade of a tree, for example. This mode can also be used
to correct the adverse effects of backlighting or by artificial lighting.
5
Ensure that your subject is within the effective range of the flash. (P.74)
The effectiveness of forced flash is limited in very bright conditions.

Preventing flash firing in dark conditions (Flash Off mode)

Use this mode to ensure that the flash does not fire in low-light conditions.
In this mode, the flash never fires, regardless of how dark it is. Use this mode
in situations such as art galleries where flash photography is prohibited, and
when you want to shoot evening or night scenes.
This mode uses slower shutter speeds and a tripod should be used to
prevent camera shake. Moving subjects will appear blurred.
126
Control panel
Forced Flash mode
Control panel
Flash Off mode