Epson IR-320, Technical Reference Manual

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Rev. C Utilities 4-25
IR-320 Technical Reference Manual
Layer 28-key Keyboard Definition Utility (for Windows XP/2000/NT and Windows 98)
This utility is a utility for connecting the 28-key keyboard unit (DM-KR028) to the IR-310/320
and using the layer function.The layer function divides the key definitions for the 28 keys of the
28-key keyboard unit into units called layers, makes it possible to define multiple layers and
thus enables the user to make (28 keys
x number of layers) key definitions. Multiple layers can
be switched instantaneously through the layer change key or through software, enabling input
from more than 28 keys.
There are two versions of the Layer 28-key Keyboard Definition Utility, for Windows95/98 and
Windows NT/2000.
The layer 28-key keyboard definition utility has not been installed in the products. If you want
this software, contact your EPSON distributor.
Outline
What is the Layer Function?
A maximum of 28 keys could be programmed in the 28-key keyboard, but the key definitions varied
depending on the application that was being run. If defining of more than 28 keys was desired, it was
necessary to judge the input status in the application and switch the key inputs.
Then, by enabling definition of the 28 keys in so-called layer units, and making it possible to define
multiple layers, (28 keys
x number of layers) could be defined enabling key input from more than 28 keys.
This is the layer function.
There are two methods of switching layers instantaneously.
Changing layers using the Change Layer Key (Shift key type)
A key is defined in advance for switching to each layer, with the specified layer activated while that key is
pressed, then key data for the specified layer being input by pressing keys while in that state.
Using this method, it is not necessary for the application to be aware of the layer status.
The shift key type defines a specific key, such as the computer’s
Shift
key or
Ctrl
key, as the change layer
key. Layers are then changed only while that key is being pressed, with the layer returning to "Layer 0"
when it is released.
Changing Layers using Software
Software functions include the layer status read function and the layer setting function. When the
application switches to the specified layer, the key data for the specified layer are input when the keys are
pressed. In this case, management of the layers is all performed by the application, and the current layer is
maintained until the application changes layers.
Note:
❑
Do not use the above 2 methods simultaneously. Using them at the same time may cause differences
between the key definition recognized by the application and the actual input.