User's Manual

“Space-m (dots 1-3-4)” and the “F2” key will open the specific menu for

each program. The “F3” key has the same function as “tab (“Space-4-

5”). If you press “Space-F3”, this will have the same function as

pressing “shift-tab (“Space-1-2”)”. The “F4” key will function just like the

“escape” key does on a personal computer. This key performs the

same function as pressing “Space-e (dots 1-5)”. Please note that the

“escape” key does not exit a program, as does “Space-z (dots 1-3-5-6)”.

You can use combinations of the function keys to allow you to do many

tasks. Pressing “F1” and “F2” at the same time will work the same as

“page up” on a personal computer. If you press the “F3” and “F4” keys

at the same time, this is the same as pressing “page down” on a

personal computer. The combination of the “F1” and “F4” keys will

move you to the Task Name (like the task bar in a computer running

Microsoft Windows). If you press the “F2” and “F3” keys simultaneously,

you can switch between the different programs that are running just like

pressing “alt-tab” in your PC. The Task Name and program switching

will be explained in greater detail in the section 2.9, entitled, “Multi-

Tasking”.

2.4 The AC Power Supply and the Battery Pack for the Braille Sense

OnHand

It is very useful to know what the remaining battery power when the

Braille Sense OnHand is being operated only on battery power. If the

remaining battery power is not sufficient, the Braille Sense OnHand will

indicate that the battery power is low. In this case, you need to check

the remaining battery power, especially when you are using the Braille

Sense OnHand without plugging it into an AC power supply.

To check the battery power status, press “Space-1-6”. You will find the

following 2 items:

1. Battery power level

2. Power source (battery or AC supply)

The battery power level represents the percentage of the remaining